TECHNOLOGY IN ACTION ADVERTORIAL


anything else. With an extensive range of Jackets, Trousers, Shorts, Toolvests, Shirts and


Snickers Will Stretch Your Visibility. S


nickers Workwear takes personal protection very seriously. That's why this new range of cool and functional Hi-Vis summer clothing is streets ahead of


The Solid Gear VENT Safety Shoe – Precision Safety and Comfort


safety shoe is ideal for workers who are constantly on the move.


C VENT’s upper is made from lightweight mesh combined


with Cordura and a TPU reinforcement to ensure cool comfort, maximum breathability and enhanced durability. While the shoe’s two midsoles deliver stability, flexibility and optimal energy return for enhanced comfort on your feet, the rubber outsole provides a high level of anti-slip protection. For added protection, the shoe’s NANO toe cap is 40%


stronger than fiberglass and has a more athletic look that conventional metallic ones. What’s more, the BOA fastening system provides flexibility and high precision adjustment of the shoe. So get to know more about the quality and innovation


plus the top class safety functionality in every Solid Gear product – your feet will notice the difference.


Solid Gear Safety Shoes  01484 854788 


www.solidgearfootwear.com


ombining a lightweight athletic look with maximum breathability and superb safety features, the new VENT


Fleeces from Snickers’ LITEWork, FLEXIWork and ALLROUNDWORK families, there’s a host of different garments in the range to satisfy the specific requirements of Classes 1, 2 and 3 protection levels. These 'outstanding' products combine Snickers' unrivalled hallmarks of functionality and comfort with the requirements of the EN471 standard for high visibility warning clothes. With advanced designs and high-tech fabrics, all the garments haver durable,


colour-fast protection that will last for wash after wash, retaining shape and comfort throughout the life of the garments. Added to which, all Snickers Hi Vis garments can be custom-profiled to ensure 'stand out' coverage for your corporate brand.


Snickers  01484 854788 Evatron Protective Boots R


ugged and highly visible when you need strong, robust protection for your enclosure. Available


in blue, orange and red, these protective boots come in 2 styles and 8 sizes making them a perfect fit for many of our handheld enclosures. Held secure in the boot – essential when you


need extra protection – the enclosure is easy to remove. Compatible enclosures are available in various sizes, with or without battery compartment, recessed or flush top, and some with removable end panels plus optional sealing gasket to achieve IP65 rating.


Enclosures can be modified to your exact requirements with CNC machining, screen printing and EMI/RFI


shielding. Cut outs for the protective boot may also be made to your exact specifications. Contact sales@evatron.com for more information or click the ‘online chat’ icon on our website.


Evatron  01908 325100  www.evatron.com EV Charging – Tesla specify 6 mA DC fault current detection


The new standard highlights the risks associated with smooth dc fault currents in AC EV charging applications, employing socket-outlets and RCDs for additional protection. IEC61851-1 2017 specifies the use of Type B RCDs or Type A with appropriate equipment that can detect dc fault currents and disconnect the supply, if the fault current exceeds 6 mA dc. Type A EV RCCBs incorporate this functionality and will trip when the 6 mA DC limit is exceeded. This revised requirement has been introduced to reduce the risks associated with the interpretation of the previous wording of clause 722.531.2.101:


“…The RCD protecting the charging point shall be at least type A… If it is known that the DC component of the residual current exceeds 6 mA then a type B RCD complying with BS EN 62423 shall be installed.. “


It is possible that under the old standard, electric vehicles that can produce smooth DC fault currents above 6 mA, could be connected to charge points containing Type A RCDs, resulting in reduced or lost protection. The new standard removes this ambiguity and the associated risk.


Doepke  01628 829133  www.doepke.co.uk  www.snickersworkwear.co.uk


E


V charging equipment and cables due to the nature of the environment, storage and use should be maintained and checked regularly to ensure that there is no damage to the equipment and or insulation. In practice equipment may not be checked from one year to the next, and as the equipment ages the probability of a fault developing increases. One of the control measures to reduce the severity of the shock hazard in the event of fault, relies on the correct selection and application of RCDs, to disconnect the circuit under fault conditions.


Tesla specify the use of Doepke’s DFS4 A EV RCCBs with their charge points, to meet the revised safety July 2017.


requirements in IEC61851-1, following the withdrawal of the old standard in


CONNECTINGINDUSTRY.COM/ELECTRICALENGINEERING


ELECTRICAL ENGINEERING | JUNE 2018 35


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