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TEST & MEASUREMENT FEATURE DON’T LET THE 18TH EDITION STUNT YOUR GROWTH


“Despite assertions to the contrary the 18th Edition should have an impact on testing”, says Brendan Beaver, sales manager of test solutions provider, Metrel


B


eaver says, “Vehicle charging points can, from the first of January, be protected by either a RCD type B or a RCD type A and appropriate equipment that ensures disconnection of the supply in case of a DC fault above 6 mA” Contractors are going to be attracted to


fitting car charging points with the latter protection to avoid the need of using a more costly B type RCD. However in the good old days, when life was simpler, a DC current of around 6 mA was used to lock A type RCDs to stop them from tripping during loop testing, so the 6 mA DC current protection needs checking. Also in a survey, more than 50 per cent


of installers questioned said that they had experienced RCD failure straight out of the box. It is therefore essential that the whole system is checked on installation, as well as at intervals during the equipment’s lifetime. Type B DC sensitive RCDs are rated at 30


mA. They can be tested by a range of premium test equipment using various routines. However these testers are usually limited to a DC sensitivity in the region of 15 mA and above, nothing as low as 6 mA.


system as whole. It can test the charging point in all charging state outputs, disconnected, charge ready, active charging (with and without ventilation) and pilot error. While it can be used with a range for all-


How are we to test the charge points


with 30 mA AC and 6 mA DC protection, also known type EV RCDs? Fortunately there is a solution. Metrel has developed the innovative EVSE Adapter A 1532, which plugs directly into charge points, known as electrical vehicle supply equipment (EVSE) to the regulators, giving access without opening the box. One of the immediate advantages is that the adapter accesses the charge point in the same manner as an electrical vehicle and thus tests the


in-one testers, it is only the Metrel MI 1352 that offers the 6 mA DC test to confirm compliance with the 18th Edition. The MI 3152 touchscreen installation tester offers programmable auto sequences to cost- effectively help the engineer through all the required tests and ensuring they never again leave an installation without completing the full set of test results for certification and invoicing. The installation and inspection of the vast number of vehicle charging points required in the UK by the government’s target date of 2030 is the biggest commercial opportunity for the electrical trades in history. For those businesses that can respond adequately on price and service stand to grow and prosper. Having the right test equipment will be a major component of that growth.


Metrel


The North Yorkshire manufacturer, which exports to over 40 countries, has purchased a QUV accelerated weathering tester machine that enables it to accurately predict the lifespan of all of its products; meaning they can sell them with a guaranteed lifespan. Richard Shaw, managing director of Ellis, says: “Up until


ELLIS GETS TO GRIPS WITH PRODUCT LIFESPAN C


now we haven’t been able to guarantee a specific length of product life, which has proved to be a stumbling block when seeking to enter new markets – in particular when it comes to UV degradation of polymer products. And given polymer products have only been around for 40 years, there’s no historic supporting information available for them.” “The investment in the QUV machine puts us in the advantageous position of being able to accurately, and confidently, state the installed lifespan of all polymer products, and provide a guarantee to that effect.” Ellis commissioned the unit in October, and has already commenced a testing programme that will eventually catalogue projected lifespans for every one of its numerous polymer products. The company’s testing facilities, which are managed by newly appointed, laboratory technician, Graham Matthew, enable Ellis to carry out all necessary product testing, with the exception of short-circuit tests, in-house. Commenting on his new role, Graham says: “Ellis has a mighty reputation and when you take a look at the investment


going into the business, covering everything from new product development to the testing and then manufacture of market ready products it’s easy to understand why.”


Ellis  ellispatents.co.uk A


able cleat innovator, Ellis has invested £15k in new in-house testing technology that it says removes a major barrier to entry into a number of new industries.


metrel.co.uk


nritsu Corporation, a global provider


of innovative test and measurement


solutions for advanced and converged networks, has launched its 64- Gbaud PAM4 Pulse Pattern Generator (PPG) and 32-Gbaud PAM4 Error Detector (ED). This PAM4 BERT supports 400GbE testing when these modules are installed in the Anritsu Signal Quality Analyzer-R MP1900A series to implement a bit- error-rate test solution with best-in- class signal level quality and excellent Rx sensitivity for next-generation broadband communication systems.


ELECTRICAL ENGINEERING | DECEMBER/ JANUARY 2019 27


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