Sparks Electrical News October 2017
• MCCs and motor protection • Energy measurement and supply • Lighting FEATURES
OCTOBER 2017
E L E C T R I C A L N E W S
Contractors’ corner | Buyers’ guide | People on the move REGULARS:
ARE YOU READY FOR IoT? A s IoT becomes more prevalent, electrical contractors that change the way they operate, and skill up, will not only stay relevant, but can open up new business opportunities. People have been talking about the brave new world of the Internet of Things (IoT) for years. It has been predicted to be as transformational as the spread of the mobile Internet, and we are seeing IoT transforming the way we live and work. Already, we are seeing IoT systems being used for health status monitoring, intelligent traffic lights easing traffic congestion, and smart meters helping citizens and utilities use resources like energy and water more efficiently.
In fact, utilities are second only to the insurance industry where the IoT use case shows almost immediate benefits, and while much has been said about the role electrical engineers have to play in the IoT-driven future, electricians will also have to invest in new skills in order to remain relevant. As connected power grids become more common, the business model of contractors is in- creasingly being challenged. According to Enrique Birlanga, who is responsible for the EcoXpert Con- nected Power Certification badge from Schneider Electric, smaller contrac- tors who work with small to medium businesses (SMBs) such as restaurants, offices, industries, smaller retail chains and branch offices, typically operate in a highly competitive and price-sensitive market. In an increasingly com- moditised low voltage environment, “it’s a rather traditional business of design, install and go,” he says. “With the IoT, they have opportunities to deliver new, value-added services to customers with higher margins, competitive benefits and a closer relation- ship to their typical SMB customers than in an ‘install and go’ scenario. These additional services are also in higher demand, not least due to cost saving, en- ergy efficiency and monitoring/maintenance demands.” Local IoT networks In South Africa, like the rest of the world, IoT is relatively in its infancy. While common IoT applications have tended to be along the lines of FitBit and driv- ing monitoring to allow underwriters to tailor premiums, local utilities are ac- tively testing connected systems. This is partly as a result of the success of IoT implementations in other countries, and partly because they now have access to a number of IoT networks that have been rolled out locally. MTN Business is one of the companies that has invested in a South African IoT ecosystem. Not only has MTN Business built a nationwide IoT network, it has established an extensive partner portfolio to cover the many industries that will be using IoT in the future. The company has also run the Mind2Machine event for the past three years in order to grow the skills base and ap- plications available. Mariana Kruger, GM for ICT solutions at MTN Business, explains that the focus from a skills perspective has been mainly on the technology side, but that this will change as more IoT applications are implemented. “We are not doing specific upskilling of electricians at the moment, but we will absorb as many local municipality staff in the roll out of new ser- vices in their region as possible. This will be done through our partners,” she adds. Another company that has rolled out an IoT network is Comsol, which is providing its own IoT ecosystem. In addition to the network, Comsol has secured several device distribution agreements in South Africa and has partnered with Actility, an IoT software specialist. Comsol is “in talks” with a “major public sector organisation”, according to Justin Colyn, Ex- ecutive Head of IoT at Comsol, when asked if any electrical utilities were using the Comsol network. New skills for a new world In light of the fact that these IoT networks are opening up new oppor- tunities for utilities and greater efficiencies for everyone connected to the electrical grid, connected power solutions such as smart panels, smart metering and energy management and efficiency systems in the cloud are going to become more common over the next few years. This means that on top of their electrical skills, contractors are going to need essential IT and IoT know-how.
These skills are relatively hard to come by locally at the moment, with few certifications available. Schneider Electric offers the ‘Connected Power’ badge within the awarded EcoXpert partner programme and the SAIEE provides a course on IoT Standards and Applications. Other certifications are available online, but do not offer the classroom environment many people prefer. The EcoXpert partner programme provides tiered competency training paths for “the industry knowledge and skill sets needed to enable smarter buildings, more reliable infrastructures and optimised energy efficiency”. There are five competency tracks with two certification levels: Certified EcoXpert or Master EcoXpert, with specialisations and advanced training on topics
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CONTRACTORS’ CORNER
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PERSONALITY OF THE MONTH: JOHAN BASSON
IF A JOB’S WORTH DOING, IT IS WORTH DOING WELL
my greatest accomplishment to be the management buy-out of my previous company, RBF Technology, and making it into one of the largest panel building concerns in South Africa. Sparks: Have you won any awards? JB: : Other than an ‘Apprentice of the Year’ award, there have been no personal work-related awards. My companies have achieved a number of industry awards giving recognition for our role in the field. Sparks: Who has been your inspiration or have you had a mentor who has influenced your career? JB: Career-wise, the person that mentored me most significantly was Paul Nitchmann, the charismatic original owner of RBF Engineering. The biggest inspiration for my personal growth has been Nelson Mandela, through his selfless sacrifices and reconciliatory initiatives during our transformation years towards becoming a democracy. Sparks: What, to your mind, is one of the biggest challenges facing the industry at this time? JB: Our country faces a number of serious challenges, the most critical being unemployment and the high level of political uncertainty. Corruption, education and training need to be addressed as national priorities, and the private sector will have to play a stronger role in driving change for the future. Sparks: What do you enjoy most about your job? JB: My greatest reward is a happy customer. There is no bigger joy for any businessman than receiving positive recognition for commitment and hard work. Sparks: How do you motivate your staff? JB: I always try to lead by example. I treat my staff with respect, acknowledge their positive contributions and promote a team spirit whilst keeping things simple. I am a tough task master, but always endeavour to be totally open and fair. I am also a firm believer in management by walk- about, so I stay involved with all aspects of the business. Sparks: If you could “do it all again”, would you change anything? If so, what would that be? JB: Although going into the electrical industry was not my dream as a young man, it has been good to me, and I have enjoyed most of it. If I had to do it all over again, I would probably be less naïve. Over the years I suffered disappointments from devious people through dishonesty and suspect ulterior motives. On the positive side, this has made me wiser and stronger as a person. Sparks: Would you advise a person leaving school to enter the electrical industry? And, if so, why? JB: I would strongly encourage any young person interested in the electrical industry to go for it! We have a huge shortage of technical skills, fromartisanal level to graduate engineers. The variety of directions and specialist fields is huge, and the industry is dynamic and constantly evolving to present an ever-fresh and exciting work environment. Sparks: What is your advice to electrical contractors and/or electrical engineers? JB: My advice is simply to remain focused and committed. Make sure you understand the standards governing performance and safety. Always keep an open mind, never stop learning, and above all, have fun. If a job is worth doing, it is worth doing well. And then you will reap the rewards.
Sparks: What is your favourite quote? JB: The best preparation for tomorrow is to do today’s work superbly well - Sir William Oster. Sparks: Name three things on your ‘bucket list’ (things you want to do before you ‘kick the bucket’). JB: My bucket list is quite long, despite the fact I have done some great things, and experienced some very special moments. But, if I have to list three things, they are as follows: undertake an extended motorbike tour through Europe or America; explore Namibia; and attend the ‘Goodwood Festival’ in the UK.
Johan Basson.
Johan Basson, managing director of JB Switchgear Solutions, has a long and successful track record of more than 40 years in the industry. Prior to JB Switchgear, he owned RBF Technology which, at the time, was the largest privately-owned LV switchgear company in South Africa, and which was sold to Schneider Electric in 2007. A senior member of the SAIEE and numerous technical committees of the SABS, Johan also serves on the executive committee of the Elec- trical Switchgear Association of South Africa, and has held chairman- ship positions of two large industry associations, ESASA and EEAIA. In addition, he acts as a technical advisor to numerous organisations including Anglo American, De Beers, Kumba Iron Ore and Sasol. Sparks: Where were you educated? JB: I went to Brandwag Hoërskool in Benoni, but circumstances were difficult, so I left school at the age of 16 to start working. I joined SA Railways as an apprentice electrician, and achievedmy NTC 5 certificate before qualifying. Afterwards, I completed a national diploma in production engineering at Witwatersrand Technical College. Numerous other management diplomas have followed in subsequent years. Sparks: How long have you been involved in the electrical industry? JB: After completing my apprenticeship, I joined a small switchgear company. That was back in 1970, so overall it has been some 47 years, of which 40 years have been at senior management level. Sparks: When and where did you start your career? JB: I started my career at the South African Railways in 1966. Sparks: What are the greatest changes you have seen over the years? JB: I have seen many changes, the most significant being rapid technological advances and the substantial challenges facing our economy. Our manufacturing footprint and capability in South Africa needs to be stepped up dramatically to secure a future for our young people. Sparks: What major projects have you worked on and what is your greatest accomplishment? JB: I have had the privilege of being involved in many large projects for all the major mining companies and project houses. I consider
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SRS CONVEYOR CABLE PULL SWITCH
including Building Management Systems, Critical Power, Light & Room Control, Data Connectivity, and Connected Power. “The choices for electrical contractors are relative- ly straightforward: do they want to remain in a very competitive and commoditised market with high cost pressure, low margins and no-repeat business while the uptake of smart panels and smart energy efficiency solutions goes on and in the end makes them less relevant or do they want to become lead- ers instead of laggards, tapping into new revenue sources with high margins and up-sell and cross- sell opportunities as they stay longer and close to customers, up the value chain? The solutions, ben- efits, programs and certification paths are there, now it’s just a matter of acting,” Birlanga concludes.
The SRS conveyor cable pull switch from DRH Compo- nents is designed to provide a switching system to trip a conveyor in the event of emergency. The pull switch, which is made of corrosion free material and is suitable for Zone 21 environments, has IA Certification, ensuring SHEQ qualification. The pull switch offers two contact blocks (SPDT) and trip. When activated, it is locked me- chanically and a metal flag will indicate the trip. Reset- ting is done manually by releasing a mechanical latch. The pull switch has bi-directional cable operation and offers an operational distance of 100 metres.
Enquiries: + 27 (0)31 765 4748
SPARKS ELECTRICAL NEWS
OCTOBER 2017
CONTRACTORS’ CORNER
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MAJOR TECH LAUNCHES VETi 2 RANGE
T wo years of development and testing have brought about the launch of Major Tech’s VETi 2 range of switches and sockets. In response to industry and market demand, the VETi 2 range was designed to provide an upmarket design, with superior quality, at an affordable price. “We launched the VETi range a couple of years ago. It is a modu- lar system, middle-of-the-range product that has done exception- ally well. VETi 2 looks different, it works differently and one of the many things we like about this product is that it is very modern. We always aim to develop the best product that customers want and that meets South African regulations,” says Major Tech CEO, Pat Shaw. VETi 2 is not your average switch and socket range but rather offers a completely new monoblock design and concept that is IEC
Enquiries: +27 (0)11 879 2000
and SANS compliant. VETi 2 is the first socket in South Africa to accommodate a switched socket with 1 standard RSA socket, 2 V- slim sockets and 2 USB ports (2.1 amp cumulative). Having partnered with Major Tech in the launch of VETi 2, the Voltex Group is the first distributor of electrical products to carry the complete VETi 2 range. Stanley Green, CEO of Voltex (Pty) Ltd, says: “We believe in building solid foundations and relationships with our suppliers. For us, that is key to growing our business – we have loyal suppliers we are able to rely on and, in turn, they are able to rely on us”. Available in white and charcoal, the ultra slim and flat design keeps the VETi 2 product flush to the wall surface. The stylish switches, manufactured from a polycarbonate and ABS blend, boast a perfectly flat switch whether in an ON or OFF position.
DHL EXPRESS UNVEILS ITS FIRST GREEN FACILITY IN SUB-SAHARAN AFRICA DHL EXPRESS , the world’s leading international express services provider, has unveiled its first green facility in Sub-Saharan Africa. The facility, located in Bryanston, Johannesburg, has a state-of-the-art 10 000-litre rainwater har- vesting system and rooftop solar energy genera- tion plant, which significantly lowers the building’s carbon footprint and reduces energy consumption by 55%. The decreased energy consumption is partly due to a 34 kW solar photovoltaic system that re- duces the demand for grid power by at least 25%. The facility also uses highly efficient LEDs, cou- pled with sensors designed to turn off lights in unoccupied offices automatically. This contributes energy savings of up to 35%. Most of the lighting used in the warehouse is switched off by a timer at dusk. The facility’s energy consumption and solar energy production are monitored and reported in real time. Anthony Beckley, vice president, Operations, DHL Express Sub-Saharan Africa, says, “The ‘greening’ of the building is in line with Deutsche Post DHL Group’s (DPDHL) goal to reduce all lo- gistics-related emissions to net zero by the year 2050. The measures we put in place have reduced the building’s overall energy consumption by 55%. “Even though the Bryanston project is still in its infancy, early results based on performance indi- cate that despite the cost of electricity and water increasing, the estimated payback period for the building’s upgrades is currently around three years, down from an initial estimate of 4.5 years,” Beck- ley adds. The energy savings of the facility will be tracked for the next three months, after which DHL Express will begin the roll-out of green upgrades to additional sites across Sub-Saharan Africa, includ- ing the rest of South Africa, Nigeria, Ghana and Mozambique. “The last and critical outcome we hope to achieve out of this ‘greening’ of facilities is to edu- cate our employees on the importance of work- ing together to attain our collective zero emissions goal. We are in the process of implementing green policies, geared at saving resources and reducing carbon emissions, which will help shape a compa- ny culture. This is the first step in creating greener, more efficient supply chains throughout our Afri- can operations,” Beckley concludes.
Enquiries: www.dhl.co.za
SPARKS ELECTRICAL NEWS
OCTOBER 2017
CONTRACTORS’ CORNER
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ALIVE WITH POWER FOR 50 YEARS
Aligning with its goal to constantly grow and improve its product offering, Alvern Cables has marked its 50 th birthday with a range of new products, which includes: • AL-VK (RV-K) trailing cable – the only locally manufactured trailing cable with polyethylene cores. • Split neutral and earth concentric cables. • Concentric neutral with and without pilot cores for power supply to low cost developments. Blasting wire Alvern Cables is adept at manufacturing cables but also has a successful distribution division that buys and stocks premium quality cables and brands it does not manufacture. With renewables being the buzz word in the industry,
ALVERN CABLES was established in 1967 by AE Hendey, V Higham and PG Wiggin. Strug- gling to get the cables they required for signalling purposes in the railway industry, they decided to manufacture the required cable themselves. Ow- ing to the downturn in the railway sector, the then parent company SA Signals was superseded by Alvern Cables. From these humble beginnings, Alvern Cables has grown into a cable manufacturer that employs nearly 300 people. It has a manufacturing plant based in Knights, Gauteng, where the best virgin grade materials are used to manufacture a wide range of high end, low voltage electrical copper ca- bles. The products are then distributed to branches in Gauteng, KwaZulu-Natal, Cape Town and Port Elizabeth, or to its export division. E lectroMechanica (EM) has introduced the Econo range of ergonomic plugs and sock- ets from SCAME Electrical Solutions of Italy. The plugs and sockets are built from robust and durable materials to ensure a longer lifespan and the main focus is on ensuring reliable and safe operation due to innovative, class-leading features that promote ease of use, says EM sales and mar- keting director Richard Nobbs. “This is a much-anticipated range for our whole- sale distribution channel and the roll-out covers the broader South African market,” says Nobbs. He adds that the new range will benefit industry in general and OEMs in particular. SCAME Electrical Solutions has a wide product offering and end users are guaranteed of receiving European quality at a local price. As with all prod- ucts in the EM stable, full technical and back-up
From power to electronic/automation, Alvern Cables has a wide range of readily available prod- ucts and solutions, making it a one stop cable shop. 50 years of excellent service, quality and com- petitive pricing make Alvern Cables a valued cable solutions provider. Enquiries: +27 (0)11 822 0917
it stocks the new H1Z2Z2-K solar specification at a competitive cost. Other products include Cat cables, RG cables, Aluminium cables, and Braided and Rubber cables. This area of the business has recently been expanded under the instrumentation, control and specialised (ICS) umbrella to include instrumentation and control.
ELECTROMECHANICA INTRODUCES ERGONOMIC PLUG-AND-SOCKET RANGE
MAGNET’S 45 YEARS OF BUSINESS I t’s been 45 years since Magnet was established in Durban, as a team of ten, supplying copper wire and heating elements.
support is readily available,. The launch of the Econo range follows the re- cent introduction of the Optima-Top and Xenia series of electrical components from SCAME Electrical Solutions. They comply with latest Euro- pean Union (EU) directives, such as the low voltage directive 2014/35/EU, for electrical components.
TheMagnet Group now comprises four divisions – Magnet Electrical Supplies, Magnet Electrical Projects, Magnet Energy and Magnol Electrical Contractors – which provide comprehensive electrical solutions, including design, supply, automation, installation and commissioning. “Through a carefully structured expansion programme, new products are launched to meet exact market demands and innovative services are introduced through the company’s specialist divisions,” says BrianHowarth,managing director, Magnet. “An exciting development for Magnet has been in energy efficiency and energy saving project management. These services contribute significantly to the reduction of wasted energy in industrial and commercial sectors throughout the country. Apart from lighting solutions, Magnet’s energy saving service incorporates metering, hot water systems, air-conditioning
Enquiries: www.em.co.za
controls and solar systems. Magnet is committed to sustainable develop- ment and instils in its team a responsibility for health, safety, the environment, and local com- munities. Through Magnet’s technical expertise, a vast range of quality branded products and a 24-hour skilled support service, the company continues to make a positive contribution to the South African economy.
Enquiries: +27 (0)31 274 1998
MITIGATING LIGHTNING STRIKE RISK FOR THATCHED ROOF STRUCTURES DEHN Africa’s high voltage resistant insulated (HVI) lightning protection system, which is compact and more aes- thetically pleasing than the traditional 30 m mast, offers external protection for thatched buildings. Kirk Risch, sales and marketing director at DEHN Africa, says that with the company’s alternative lightning pro- tection option, the vulnerability of a thatched roof to lightning strikes is substantially mitigated, without having to erect the typical mast we are so used to seeing in South Africa. DEHN Africa can assist home and business owners to enjoy the aesthetics provided by a thatched roof structure, while knowing that they can avoid lightning-related disasters through the provision of LPS components for use specifically on thatched roofs. “The LPS is easy to install on new constructions and simple to convert for existing structures that previously relied on the traditional lightning rod,” Risch concludes.
Enquiries: www.dehn-africa.com
PORTABLE LABEL PRINTER FOR CUSTOM LABELLING T he BMP61 label printer from Brady is a useful tool for those working in market sectors that use a sizeable number of cables that require labelling,
such as the electrical, power, telecom and ICT industries. The BMP61 printer targets installers, field technicians, maintenance technicians, site managers and electrical contractors, as well as workers in cabling, control panel and switchgear manufacturing or cable harness assem- bly. Using high-performance materials that can handle tough industrial identification applications, the printer is fast and portable, making it suitable for use on site or in the field. The printer is capable of high-performance printing on a wide range of durable labels and is capable of handling a range of identification challenges owing to its wireless connectivity. It is particularly suitable for applications such as the identification of outdoor cables of various sizes and main electrical components in the field or within facilities. In addition, it can be used to replace engraved plates that
identify components with printable labels that are virtu- ally identical to engraved plates. The printer is available from RS Components along with consumables and labels for the BMP61, including engraved plate alternative labels in a range of sizes and personalised custom labels.
Enquiries: za.rs-online.com
SPARKS ELECTRICAL NEWS
OCTOBER 2017
CONTRACTORS’ CORNER
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WORKING KNOWLEDGE BY TERRY MACKENZIE HOY
FOR LIGHTING … USE AN EXPERIENCED ELECTRICIAN B uilding maintenance people are often regarded as some form of troglodyte who scurries around the building at night fixing things. This is far from the truth – a good building maintenance
tion, the perimeter lights were all low-pressure sodium lights (Sox). It is quite easy to replace the lamps (you just need a ladder) but the lamps, (if you can find them) are very expensive. So, I arranged to remove the fittings and rewired them to take a mercury blended lamp. These don’t give off as much light as the Sox lamps but they don’t need to. They last a long time – which is really what is wanted. For what it is worth, all the lighting disasters that I have seen, fittings far out of reach, hard to install, difficult to service, too much light, or not enough light, all these errors are made by people who don’t know enough about lights. Never ask the lighting suppliers what to install, (they’ll just empty your budget). Never use an interior designer. Use a good lighting technician, or an experienced electrician–trust me, you won’t regret it. Well, that’s just my opinion.
We perceive white light LED lamps (which are based on a blue LED emission with a phosphor coating) as being ‘brighter’ than alternative light sources even though lux readings may say otherwise. Often, the readings are incorrect owing to the way we perceive light from LED lamps. Simply put, we can say that the human eye is better tuned to blue wavelengths at low light levels than under conditions of high ambient illumination. This explains the wrong readings because the lux meter (photometer) is measuring the light source with a daylight- adapted response and is, in fact, giving a misleading reading. When LED street lights appear brighter than alternative sources even though the lux meter is saying the opposite, just trust your eyes. The meter is wrong. Sometimes inappropriate lamps are used. At my local police sta-
person is worth paying for. However, that person is frequently severely hindered from duty by interior designers or engineers who design the building lighting. The hindrance comes from the fact that, very often, the designers place light fittings in inaccessible places and, when the lamp has to be replaced, it is a real struggle for the maintenance staff. Low installation costs can be achieved by installing high bay area lighting where the fitting price is low and the area illuminated is fairly large. However, if the lights have to be accessed by a mobile scaf- fold, there are safety and operational issues. The lamps have to be changed over weekends and at night, when most people are not at
PRE-TERMINATED CABLE ASSEMBLIES FROM MOLEX One of the problems we have to deal with today is the widespread use of LED (light emitting diode) lights. In earlier times, light levels were measured with lux meters or photometers. their best. Accidents will happen. It is far better to have the lights high up, but to have some means of lowering the light fitting to a working level. This is seldom done. “Too costly, too complicated,” they say. What rubbish. Another lighting mistake is to have open tube florescent fittings in air-conditioned areas. If a fluo- rescent tube is in a cool area then, being cool, it will last three times longer than normal. Which is good and bad. The good part is, there is a longer time until the tubes have to be replaced, the bad part is, they would have dimmed to half the normal output in that time. Golden rule: make the Monday before 16 December fluorescent re-lamping day. All done on the same day, and don’t worry for the rest of the year. One light that is often ignored is sunlight. GEC Machines (now GEC Alsthom) has a factory housed in an old building, which has a zig-zag roof with skylights. The result is that illumination levels from sunlight alone are great on a shop floor and cost very little – except during construction (our boardroom is lit by a skylight, and people often ask where to switch it off when they leave ...)
RS COMPONENTS (RS) has announced the availability of a number of pre-prepared cable assemblies that provide compatible solutions for key product ranges from Molex, manufacturer of connectors and interconnection components. Targeting a wide range of applications in in- dustries including automotive, consumer, defence, industrial and medical, as well as telecommuni- cations and networking, the Molex range of pre- terminated cables makes it easier for engineers to adopt interconnection components in new and existing designs, removing the need for expensive tooling, long production times and laborious testing procedures. The wire-to-board cable assemblies have been designed with terminations chosen to work with some of Molex’s most popular interconnection families. These include the FIT range (Micro-FIT, Mini-FIT Jr. Nano-FIT and Mega-Fit), as well as the CLIK-Mate and Micro-Clasp and Pico-Clasp con- nector ranges.
Enquiries: za.rs-online.com
SPARKS ELECTRICAL NEWS
OCTOBER 2017
CONTRACTORS’ CORNER
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LOW LEVEL PUSH-AROUND HY-BRID LIFTS
NWU’S STAR WILL BE CHASING THE SUN T he Faculty of Engineering at the North-West University (NWU) launched Naledi, the 2017 iteration of the solar car that will be competing in the Bridgestone World Solar Challenge starting in early October in Australia. The gruelling journey starts in Darwin, follows the Stuart Highway to Port Augusta and shifts to Highway 1 to Adelaide, about 3000 km away. Naledi, meaning ‘star’, boasts a new design with its body based on the JS3 Jonker Sailplane – that also has its roots at the Faculty of Engineering – giving Naledi sublime aerodynamic attributes. “We chose the name ‘Naledi’ because we feel that, like a star, we rise above our competition,” says Professor Albert Helberg, team captain. In previous competitions teams were allowed the use of a total of 6 m² of solar panels, but that number has been reduced to 4 m². To compensate for this reduction of a third of the possible power that can be generated, the team from the NWU will be using solar tracking technology, meaning that the panels will be able to rotate as the car drives. This allows for the panels to be kept at an optimal angle to the sun at all times. The body shape with the use of solar tracking makes Naledi unique in the competition. “Most of the other cars use a catamaran-style design, but we are thinking completely out of the box, using a design not seen since the 1980s, with modern materials and aerodynamic knowledge we believe can vastly improve on previous performances,” Helberg ex- plains. “On a technical level, the competition will be a lot harder with a third less energy at our disposal, but I am convinced we will be one of the top teams and I am more than confident we will finish the race.” The technical constraints will not be the only test the teamwill face. “The heat is going to be our biggest challenge. It is going to tire us out and reduce the efficiency of our solar panels. We also need to be wary of trucks carrying large freights on the road. Another obstacle will be areas of severe wind, but we have a stable design and I am positive we will be able to navigate that challenge as well.” The team is aiming for a constant speed of between of 70 to 80 km/h, by generating 8 kW/h throughout the day. According to CP Kloppers, one of the project engineers, the team is adamant its design will pay dividends. “There are two approaches to building a solar car whilst adapting to the new rules,” he explains. “You can either go for the approach of building a car that generates as much energy as possible, but drives a bit harder, or a smaller car that is easier to drive with a focus on minimising energy expenditure. With our unique solar tracking approach, we went with the former.” In 2016, the team from the NWU achieved the longest distance by a South African team, the longest daily distance by a South African team, won the Team Professionalism and Safety Award as well as the Spirit of Africa award in the Sasol Solar Challenge. It is a lot to live up to, but it is a challenge the NWU’s dedicated team relishes.
mal risk of leaks. The HB-P527 features an integrated hydraulic pump and lift cylinder, while the HB-P827 and HB-P1027 feature self-contained hydraulic systems with two connection points. The features minimise the potential for floor damage and safety hazards and provide a clean system for operating indoors in either finished or unfinished environments. A full-access gate swings completely open so contractors can step onto the platform rather than lifting bars or removing chains. The full- swing gate, coupled with a step-in height as low as 51.5 cm, allows contractors to place materials, such as electrical bobbins and toolbox- es, on the platform. Not only does this reduce fatigue and knee strain associated with climbing up and down ladders and scaffolds and on and off taller lifts, it also virtually eliminates falls that can occur when operators are loading and unloading heavy tools and supplies. Custom Equipment incorporated the step into the lift’s frame, which minimises the lift’s overall length. Custom Equipment builds its low-level push-around lifts with robust scissor stacks that feature oversized, 2.5 cm and 3 cm pins to enhance stability and minimise scissor sway associated with the smaller pins found on other lifts. Hy-Brid lifts use absorbent glass mat (AGM) batteries that make the units virtually maintenance free because they never require users to add water. They also feature self-regulating chargers that prevent the batteries from over-charging.
CUSTOM EQUIPMENT’S push-around Hy-Brid lifts – the HB-P527, HB-P827 and HB-P1027 – give electrical contractors safer and pro- ductive alternatives to ladders and scaffolds. They are also a more lightweight and compact alternative to taller lifts. The units provide ample platform space for supplies, such as electrical wire, conduit and tools. With their 3.4-, 4.3- and 4.9-metre working heights, contractors can use Hy-Brid push-around lifts in many of the same areas as they would ladders and scaffolds, greatly improving safety on electrical jobs. With the chance of falls virtually eliminated, operators can confi- dently manoeuvre tools and materials without steadying themselves. They will also reduce the number of trips up and down to secure tools, as the platform provides a larger, more accessible work zone than a ladder, which enhances efficiency. The largest platform is 69 cm wide, which makes it easy to fit through narrow doorways. The HB-P527 platform is 94 cm long and can hold as much as 227 kg. The HB-P827 and HB-P1027 both fea- ture a 69 cm long platform that can hold 249 kg. The three units have a zero-turn radius for hassle-free manoeuvrability around tight corners and through doorways. The lifts weigh as little as 34 kg, resulting in wheel loads as low as 115 psi. This allows contractors to use the units on delicate floors where ladders would normally be used, such as laminate, mezzanines, raised floors and tile. Users also can get onto poured concrete several days sooner than they can with larger lifts. Custom Equipment designed the lifts’ hydraulic systems for mini- SEW-EURODRIVE is building on its presence in Tanzania, its main hub in Eastern Africa, by opening a new office in Kenya, and commencing with a recruitment drive for Burundi and the Democratic Republic of Congo (DRC). East Africa represents a major growth area for the drive and automation technology specialist, SEW-Eurodrive South Africa MD Raymond Obermeyer comments. “We have managed to secure a lot of business in Africa, and I see it contributing a large percentage of our turnover going forward.” This growth is largely owing to the fact that the SEW-Eurodrive brand is well-entrenched in Africa, especially in diverse sectors such as mining and agriculture. In addition, the outward focus on expansion on the continent is necessary to counter the prevailing socio- economic climate in South Africa. “That is the determining factor. We need growth, political stability, and business confidence in order to ensure the continued sustainability of the business.” While the investment for the new manufacturing facility is being provided by the German parent company, the necessary business decisions are all being made locally, Obermeyer assures. The greater South Africa itself is not being neglected, with the Port Elizabeth
Enquiries: www.hybridlifts.com
SEW-EURODRIVE BUILDS ON ITS EAST AFRICAN PRESENCE
SEW-Eurodrive South Africa MD, Raymond Obermeyer.
branch recently relocating to newpremises in order to accommodate growth in the Eastern Cape market.
Follow Naledi’s progress on: Twitter: @NWUSolarCar or Facebook: NWU Solar Car
Enquiries: www.sew.co.za
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OCTOBER 2017
CONTRACTORS’ CORNER
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TRAINING AND DEVELOPMENT BY NICK DU PLESSIS
COACHING FOR RESULTS W hen learners are registered on an apprenticeship/learn- ership programme, the requirement is that they are ex- posed to the practical task elements at the worksite. This has been a practice for many decades where an apprentice/learner is sent to a workplace to work under the supervision and mentor- ship of an artisan. The artisan would have passed the same trade test that the apprentice/learner is studying for. The artisan would be a person who has the experience and knowledge as well as the ability to transfer his or her knowledge and experience to the ap- prentice/learner. When we read good old books, we find that a father teaches his son to do the work his father did. This is how we continue to pass skills from one generation to the next. Things have not changed much from those times, except we now pay the younger genera- tion to learn from an experienced artisan.
Step 7: Review learners feedback When you sit back and review what the learner said, this will start to provide you with guidance for transferring skills to a learner in the next coaching session. Step 8: Review coaching session Did you meet the learner’s expectations? What would you change next time to help the learner?
If the learner struggles give him/her guidance and the opportunity to master the task. Step 5: Conduct a self-evaluation Review your coaching performance and see where you could improve your coaching. Step 6: Allow for a learner feedback This step is probably one most of us neglect because we do not want negative feedback, but ask the learner about his/her coaching session. The answer may well provide you with a warm fuzzy feeling when you hear that your learner is, in fact, wanting to learn from you and is grateful.
Coaching is a rewarding experience and if planned, it will reduce frus- trations for you and learners.
Remember, you are only as good as your teacher.
There are many other issues that have influenced the transfer of skills from one generation to the next; race, religion, age and gender to name a few. The biggest influence in my view is that the person who is expected to transfer the skill and knowledge is pressurised to deliver a service, and we do not equip the parties with the skills to support one another in the workplace. I will try and give some guidance that should ease the pain of skills and knowledge transfer. I will call the person who has the skills and know- ledge, and who is referred to as a mentor, a ‘coach’. The person who is to learn, I will refer to as a ‘learner’. Before the transfer of any skill, the learner must be willing and able to acquire new skills, and the coach has to be willing to transfer his/her skills and knowledge to a learner. If this is not clarified up-front, no learning can take place. I have put together a process that can be used by a coach to assist in transferring skills and knowledge to a learner: Step 1: Plan the coaching session You need to think about the coaching session you will be having with a learner – is it a new skill that the learner will be learning or will you be evaluating and checking a skill the learner has learnt from you? Step 2: Review the coaching plan In your review of a coaching plan, you need to think about how you will best transfer the skill and know- ledge and ask yourself the following: • Will I be able to explain the task in appropriate language while demonstrating it? • Have I allowed sufficient time to match the learner’s needs? • Have I ensured compliance to health and safety regulations? • Have I planned the session in a logical se- quence? • Do I have supplementary information to rein- force learning needs? • Can I explain the task in relation to the broader context? Step 3: Conduct a coaching session allowing for demonstration and practice Remember you are experienced and have probably done the task a hundred times, but the learner needs extra time and guidance to master the skill. If you are under pressure to complete the task, then is prob- ably not a good time to coach a learner, because coaching takes time and patience. Step 4: Provide feedback to the learner Provide the learner with feedback giving positives as well as negatives. If the learner did well tell him/her.
CONTRACTORS’ CORNER
10
MAINTAINING EFFECTIVE SYSTEMS IN PERIODS OF RAPID GROWTH
FELO ERGONIC SCREW DRIVERS
A s an organisation moves through the five stages of the business lifecycle, rapid growth must be coupled with sound processes and access to in- formation in order to reach maturity. Where correct sys- tems are in place, a business can function at the same efficiency regardless of its size. However, if there are defi- ciencies in the systems, the deficits will grow as the busi- ness grows, ultimately resulting in the decline and death of the enterprise. With the advent of the fourth industrial revolution, the professional world is becoming increasingly aware of the power of technology in developing, implementing and tracking systems. As the business’ footprint expands, it must effectively manage its finances, projects, sales, purchase orders, inventory and contracts – ensuring that supply can continue to meet demand. According to Jane Thomson, managing director at Softworx, an Infor partner, keeping pace with rapid growth and the continual addition of newly-acquired business units requires strategic software implementation. Thomson offers EOH’s most recent upgrade to Infor LN as an example of how technology can bolster growth and aid an organisation to garner new business. Zunaid Mayet, EOH Group CEO, confirms that; “Our distinction lies in our ability to deliver and execute on our promise to clients, and ultimately fulfil and exceed their expectations”. To continue to deliver on its promises as its expansion continued, EOH was determined to develop and maintain full integration, automated business intelligence and rich, analytical reporting. “Fully-integrated time and expense management was required to collect weekly time-sheets, approve those time-sheets and update the billing information to customers. The ability to submit, verify and approve expense claims and advances, as well as reimburse
employees, became a critical business process,” says Thomson. “Automated business intelligence and consolidated reporting was required, providing analysis by segment, industry and customer spend; business unit and revenue split analysis; and budgeting and forecasting.” To address these needs, the software deployment at EOH entailed a middleware solution to integrate financial, customer and project data in ERP to the time- sheets and expense reimbursement in XM, with reporting, analysis, budgeting and forecasting from BI. Realising full automation, ensured that all data was available in one central database and was consolidated seamlessly. “Infor LN gives EOH executives an up-to-date view of operations at any time, even as our business grows from day to day – we can make better executive decisions faster,” confirms John King, EOH CFO. “The integrated Infor solution set of ERP LN, XM and intelligent business reporting has greatly reduced the effort to produce standard, detailed reports on the revenue and costs of more than 230 EOH business units,” says Isobel Townsend, divisional director, Finance, EOH. Infor LN is currently live on over 100 sites at EOH, processing more than 90 000 expense claims and 30 000 time-sheets per annum through Infor XM. “As a result, EOH now has better control of its operations with automated business processes, which are more efficient, less labour intensive and completely standardised,” concludes Thomson. “This drives functionality, ensuring that the business’ processes can grow with it as it remains on an upward growth trajectory.”
THE FELO brand was awarded, for the third year in a row, the Torx® World Class Quality Award by Acument Global Technologies, licenser for Torx® drives. Felo has made a range of screw-drivers with a smooth, seamless, anti- roll handle for maximum comfort. The impact-proof handle core is coated with a scratch resistant elastomer containing cells of flexible plastics to cause less strain when in use. The black tipped driver is manufactured from chrome-molybdenum-vanadium steel with superior torque, which exceeds DIN and ISO requirements by up 100% and is GS tested for safety, with the EAN code on every product. All the units have a hanging hole for easy storage or to insert a lever. On the bottom of the handle is a hexagon bolster which allows the use of a spanner for more torque.
Enquiries: +27 (0)11 314 7711
Enquiries: www.softworx.co.za or www.eoh.co.za.
TRANSFORM EXISTING ELECTRICAL INSTALLATIONS INTO A ‘SMART’ HOME
E xisting electrical in- stallations can be transformed into a ‘smart’ home without extra construction work or cable routing, owing to Hager’s coviva wireless retrofittable technology. The cost and time incurred by hard-wiring systems for ‘smart’ homes has inhibited growth in the sector. However, coviva’s micromodules can be combined with a smartbox
CLAMPING DOWN ON CABLE THEFT IN THE MINING INDUSTRY CABLE theft is a particular hazard on mine sites owing to the potential health and safety implications, especially for workers underground. The costs incurred by cable theft also have a negative impact on maintenance budgets. The UL4000-C Ultra-Lok® application tool has been designed specifically to replace band-and-buckle systems in high-volume applications. Combined with the Ultra-Lok® band-and-buckle system, the UL4000-C delivers a finished product that is stronger than traditional methods used to secure cable. Able to clamp three to five times faster than conventional banding tools when tensioning a band clamp,the UL4000-C is one of the most powerful portable band clamp installation tools on the market. The security of any traditional cable installation, such as on a mine site, can be increased significantly by applying a cost-effective Ultra-Lok® clamp as frequently as every 150 mm of cable. The costs of replacing stolen cables, and the resultant downtime, are very high.
PLUGFONES IN SOUTHERN AFRICA A t Plugfones, they believe work should be en- joyed so they designed, created and manu- factured an earplug-earbud product to allow exactly that. Unlike traditional earplugs, Plugfones allow users to hear outside low-level noises while listening to music, audiobooks, podcasts or mobile phones. Their benefits over traditional earplugs in- clude: • In-ear noise reduction: Users get the same silicone or foam earplugs to protect hearing and listen to music. Plugfones have certified noise reduction ratings (NRR) of 23 dB and 26 dB depending on the plugs used. • Comfort: The earplug-earbud hybrids are de- signed to fit all ears, and can be worn for hours at a time. The soft foam and silicone earplugs are interchangeable and can be replaced when they become dirty or worn out.
and app to enable the control and monitoring functions necessary for a ‘smart’ home. The smartbox itself also means less cabling through walls, and less rebuilding work. Once installed behind existing switches or connection boxes, the micromodules communicate wirelessly with each other. The user is able to automate multiple functions throughout the home, including lights and blinds. Each micromodule can be linked to a button that is fast and easy to program. Designed to deliver exceptional wireless reach, the micromodules can cross through two concrete slabs indoors, and still transmit up to 30 m. Outdoors, the range can extend as far as 100 m in an open field. The technology also permits connection to a range of devices. In addition to the micromodules, Hager coviva is also a hub for managing heating/cooling and security systems and other connected objects. The modular design means that any new components can be added seamlessly in order to suit changing customer requirements. The Hager coviva app allows homeowners to control lights, blinds, and other home systems anywhere and at any time. In addition, customers can create personalised scenes and associated rules, with all data stored on the local smartbox, accessible only by users for added security. Remote access is possible via an encrypted service.
Enquiries: +27 (0)11 314 7711
Enquiries: +27 (0)11 974 0424
Enquiries: +27 (0)11 249 5000
SPARKS ELECTRICAL NEWS
OCTOBER 2017
CONTRACTORS’ CORNER
11
MOTOR CONTROL CENTRES AND MOTOR PROTECTION
BUYER'S GUIDE
12
MANUFACTURERS
CABLE SUPPORT SYSTEMS
CONTACT
CONTACTORS, BREAKERS, RELAYS
ABB SA Aberdare Cables ACDC Dynamics ACTOM Protection and Control Alvern Cables Crabtree Electrical Accessories Danfoss Dehn + Söhne Electrahertz Manufacturing HellermannTyton Helukabel Lapp Group Legrand O-Line Power Process Systems Radiant Group Sabelco Electrical Industries Schneider Electric South Ocean Electrical Wire Co Stone Stamcor Switchboard Manufacturers Voltex ACDC Dynamics ACTOM Electrical Products ARB Electrical Wholesalers Atlas Group Bellco Cabstrut CBI-electric : low voltage Citilec Crabtree Electrical Accessories Dehn Africa DRH Components Electrahertz Invirotel JDL Electric Lapp Group Major Tech MCE Electric Phambili Interface Phoenix Contact Power Process Systems Radiant Group R&C Instrumentation Sabelco Electrical Industries Superlume Versalec Voltex Voltex LSis Waco Zest WEG Group CONTACT Aberdare Cables Jyoshtie Dhunes ACDC Dynamics Elmari ACTOM Electrical Products Russel Ramsden ACTOM Protection & Control Faisal Hoosen Alvern Cables Stephen Liasides ARB Electrical Wholesalers Sales Waco Industries Zest WEG Group DISTRIBUTOR ABB SA Customer contact management centre Atlas Group Annie Storar Bellco Fred Wilson Cabstrut Juanita Kanagan CBI-electric: low voltage Jaco Viljoen Citilec Jeff Forman Crabtree Electrical Accessories Sales Danfoss Stephen Brown Dehn Africa Kirk Risch DRH Components Rob Hare Electrahertz Frank Proude (Pta) Peet Lourens (Jhb) HellermannTyton Ingrid Nicolaus Helukabel Doug Gunnewegh
MCE Electric Sales O-Line Sales Phambili Interface Steve Lea Phoenix Contact Carl Coetzer Power Process Systems Sales
ABB SA Full range of cable support systems ACDC Dynamics Wide range of Gewiss and Ardic cable support systems ACTOM Electrical Products Cable support systems to suit all installations ARB Electrical Wholesalers Full range of cable support systems Atlas Group Full range of cable support systems Bellco Full range of cable support systems Cabstrut Full range of cable support systems Citilec Full range of cable support systems Electrahertz Full range of cable support systems JDL Electric Full range of cable support systems O-Line Full range of cable support systems Phoenix Contact Trunking and DIN rail Power Process Systems Full range of cable support systems Voltex Cabstrut range of cable support systems GEARBOXES FOR MOTOR APPLICATIONS ABB SA Full range of gear boxes for motor applications ARB Electrical Wholesalers Full range of gear boxes for motor applications Bellco Full range of gear boxes for motor applications Electrahertz Full range of gear boxes for motor applications JDL Electric Full range of gear boxes for motor applications Stone Stamcor Hydro-Mec European quality gearboxes R&C Instrumentation Vibration switches and transmitters Voltex Full range of gear boxes for motor applications CONTACTORS, BREAKERS, RELAYS ABB SA Full range of contactors, breakers, relays Atlas Full range of contactors, breakers, relays ACDC Dynamics Covering all low to medium voltage needs from brands including TC, C&S, Gewiss and Teraskai ACTOM Electrical Products Complete range of low voltage circuit breakers, isolators, earth leakage devices and wiring accessories ACTOM Protection & Control TAIAN contactors/relays ARB Electrical Wholesalers Full range of low voltage circuit breakers, isolators, earth leakage devices and wiring accessories Bellco Full range of contactors, breakers, relays CBI-electric: low voltage Mini contactor relays up to 12 A; contactors and contactor relays three- and four-pole; AC-1 contactors up to 2 600 A; AC-3 contactors up to 1 600A; overload relays, bi-metal up to 630 A; electronic units up to 1 600 A Citilec Full range of contactors, breakers, relays Veti 3 kA C curvev and 6 kA C and D Curve one-, two-, three- and four-pole MCBs; Veti IS one-, two-, three- and four-pole isolator switches; Veti EL RCCBs (residual current circuit breaker without integral overcurrent protection) 6 kA one-, two-, three- and four- pole isolator switches; Veti Ready Boards – VRB1 ready board with 50A overload protection; VRB1L ready board with 50 A overload protection and light; VBE12ASMT populated 12-way distribution board; VBW8ASP populated weatherproof swimming pool distribution board MCE Electric MCE ac magnetic contactors three-pole and four-pole; MCE thermal overload relays; MCE relays and bases; Onesto MCCBs; Hyundai MCCBs; Hyundai MCBs; Hyundai air circuit breakers Phoenix Contact 24 Vdc circuit breakers; a wide range of relays Power Process Systems Full range of contactors, breakers and relays R&C Instrumentation Full system power management local and via Internet Schneider Electric Full range of contactors, breakers and relays Switchboard Manufacturers LV distribution boards that contain contactors, breakers, relays, changeovers and can be used to supply power to motors and motor controllers Voltex Full range of contactors, breakers, relays DRH Components Earth leakage relays Electrahertz Full range of contactors, breakers, relays JDL Electric Full range of contactors, breakers, relays Legrand Full range of MCBs, MCCBs, ACBs and contactors Major Tech
Voltex LSis Full range of contactors, breakers, relays Zest WEG Group Full range of contactors, breakers, relays MOTOR PROTECTION AND SURGE PROTECTION ABB SA Full range of motor and surge protection ACDC Dynamics Extensive range of motor and surge protection products
Radiant Group Alfred Weldon R&C Instrumentation Gerhard Otto Sabelco Electrical Industries Marc Moreau Schneider Electric Sales South Ocean Electrical Wire Co Yasmin Mahomed Stone Stamcor Mark Talbot Superlume Willie Garbers Switchboard Manufacturers Josh Berman Versalec Roland Fry Voltex
ACTOM Protection & Control Micom motor protection relays ARB Electrical Wholesales Full range of motor protection/surge protection Atlas Group Full range of motor and surge protection Bellco Full range of motor and surge protection CBI-electric: low voltage Motor protection standard and electronic up to 65 A; DC protection for solar applications up to 63 A Dehn Africa Surge and lighting protection DRH Components Motor protection relays Electrahertz Full range of motor and surge protection JDL Electric Full range of motor and surge protection Legrand Full range of MCBs, MCCBs, ACBs and contactors MCE Electric Onesto surge arrestors, Schenker surge arrestors; Onesto dc surge arrestors Phambili Interface Full range of motor and surge protection Phoenix Contact Full range of motor and surge protection Power Process Systems Full range of motor and surge protection Sabelco Electrical Industries Full range of motor surge protection Schneider Electric Acti9 DIN-mounted iPF Type 2 or 3 LV surge arresters; Acti9 DIN-mounted iPRD Type 2 or 3 LV withdrawable surge arresters; Tesys power control and switching contactors, Tesys T motor management system Switchboard Manufacturers Power factor correction boards to reduce electricity bills as a result of high reactive charges Voltex Full range of motor and surge protection Voltex LSis Full range of motor and surge protection Zest WEG Group Full range of motor protection and surge protection CABLE MANAGEMENT ACCESSORIES Full range of wiring accessories ACTOM Electrical Products Full range of accessories for all types of installations ARB Electrical Wholesalers Full range of cable management accessories Atlas Group Full range of cable management accessories Bellco Full range of cable management accessories Cabstrut Full range of cable management accessories Citilec Full range of cable management accessories Crabtree Electrical Accessories Full range of cable management accessories Electrahertz Full range of cable management accessories HellermannTyton Full range of cable of cable ties (T-series) including stainless steel and a full range of cable identification. Helukabel Helukabel glands, connectors, cable protection JDL Electric Full range of cable management accessories Lapp Group Cable accessories including UV resistant cable ties, steel cable ties and twist tail cable ties; Fleximark cable marking products Legrand Full range of cable management systems O-Line Full range of cable management systems Phambili Interface Full range of cable management accessories Phoenix Contact Printing and cabling Power Process Systems Full range of cable management accessories Radiant Group Full range of cable management accessories Voltex Full range of cable management accessories ABB SA Full range of cable management accessories ACDC Dynamics
Hugh Ward Voltex LSis Gary Paterson Waco Jaco Coetzee Zest WEG Group Sales DRIVES AND SOFT STARTERS
ABB SA Full range of drives/soft starters ACDC Dynamics Full range of Vacon VSDs and Aucom soft starters ACTOM Protection & Control VSD panels; soft-starters ARB Electrical Wholesalers Full range of drives/soft starters Bellco Full range of drives/soft starters CBI-electric : low voltage (Automation and Controls)
Eaton drive range: (LV) 0.75 – 2.2 kW; 0.75 – 250 kW; LS drive range (LV) 0.1 – 2.2 kW; 0.1 – 800 kW; (MV) 3 – 11 kV; soft starters: 7.5 – 277 kW; 18.5 – 525 kW; 30 – 900 kW Danfoss Danfoss and Vacon variable speed drives; Danfoss soft starters Electrahertz Full range of drives and soft starters JDL Electric Full range of drives and soft starters MCE Global Suppliers MCE manual motor starters, direct online starters, star delta starters, reversing starters
Phoenix Contact Contactron series Power Process Systems Full range of drives/soft starters Voltex Full range of drives/soft starters Zest WEG Group Full range of drives and soft starters ARMOURED/SHIELDED CABLES
ABB SA Full range of armoured and shielded cables Aberdare Cables Bells & Mains ARB Electrical Wholesalers Full range of armoured and shielded cables Atlas Group Full range of armoured/shielded cables Bellco Full range of armoured/shielded cables Citilec Full range of armoured/shielded cables Electrahertz Full range of armoured/shielded cables JDL Electric Full range of armoured and shielded cables HellermannTyton Tool- Hydrolic cable cutter Helukabel Full range of armoured and shielded cables Lapp Group Unitronic data communication cables; Olflex power and control cables Phoenix Contact Full range of armoured and shielded cables Power Process Systems Full range of armoured and shielded cables South Ocean Electrical Wire Co Flame retardant (FR) armoured cable 600/1 000 V; low halogen (LHFR); flame retardant (ECC FR) armoured cable; armoured cable (FR) 1.9/3.3 kV; single core PVC AWA cable; aluminium flame retardant armoured cable; Surfix wires Voltex Full range of armoured and shielded cables
JDL Electric Shaun Singh Invirotel Modishane Sebona Lapp Group Sales Legrand Johan Bosch Major Tech Rhodam Evans
SPARKS ELECTRICAL NEWS
OCTOBER 2017
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