News Extra
New standard to ensure safety for electric vehicle charging equipment
The Institution of Engineering and Technology (IET) is calling for a standardised approach for EV charging equipment dealing with faults on the public low voltage electrical distribution network.
T
he IET has published a new standard to tackle this, known as ‘Open combined protective and neutral (PEN) conductor detection devices (OPDDs), IET 01:2024’. It outlines to manufacturers, specifiers, designers and installers the protection mechanisms for EV charging equipment in case faults occur – such as dangerous voltages on metalwork which could present a risk of shock – known as an open ‘PEN’ fault.
The new standard also equips installers with the knowledge needed to choose the right chargepoint for the right circumstances and with considerations towards differing external and environmental influences that may be faced at the chosen point of installation. The aim is to make it easier for designers and electrical installers to choose a suitable product to meet individual circumstances and requirements. This provides efficiencies for installers and will improve safety for operators and users of EV
charging equipment, as well as members of the public.
Current regulations require EV charging equipment to cease charging and completely isolate the vehicle from the charging equipment when a particular fault occurs on the supply cable out in the street. Most manufacturers of EV charging equipment provide this functionality but not all of them do it in the same way. This causes confusion when choosing the most suitable equipment and approach to installation. IET 01 seeks to provide a standard way for EV charging equipment to operate with these considerations in mind.
Mark Coles, head of technical regulations at the IET, said: “Embracing the EV transition means that both electric cars and the required vehicle charge points have become commonplace both on-street and outside homes. The positioning of EV charging equipment presents challenges to the designer and installer and must be supported by requirements and methods of operation that
Eurovent recommends T
he requirements can be applied by HVAC stakeholders and policymakers. The pandemic has shown that good Indoor Air Quality is crucial for people’s health, comfort and productivity–and that it should be considered a basic need. This Eurovent document provides a set of hands-on minimum Indoor Air Quality requirements, which can easily be applied by policymakers when drafting harmonised legislation and by HVAC stakeholders when monitoring IAQ values in buildings. To achieve a healthy Indoor Air Quality, the document recommends maximum acceptable CO2 levels and minimum outdoor airflow rates.
Martin Lenz, chairperson for the Eurovent Product Group ‘Air Handling Units, elaborated: “While extensive and detailed standards already exist for
14 | electrical wholesalerNovember 2024
ensure the safety of EV equipment and users. To meet the UK government’s targets for net zero, many, many more chargepoints need to be installed. The challenges faced by installers are not going away and, with the demand for more power to charge EVs, the risk of lost PEN incidents is increasing.”
minimum IAQ requirements European trade association Eurovent has published its recommended requirements to ensure Indoor Air Quality in non-residential buildings for human occupation.
designing air handling systems to achieve optimal indoor environmental conditions, these procedures, though essential for detailed planning, are often too complex for policymakers to incorporate into building regulations and for the public to easily understand. As a result, there are frequently no
legislative minimum requirements for Indoor Air Quality. This highlights the necessity for a simplified, easy-to-understand approach. I’m thrilled that we were able to develop such a document within the Eurovent community. Even in its simplified form, it has the potential to significantly impact building environments once integrated into legislation.” The document was published by participants of the Eurovent Product Group ‘Air Handling Units’ (PG-AHU), which covers air handling units for non- residential applications. It deals with air handling units and their components (e.g. air filters, energy recovery components, fans), often in cooperation with the specialised Eurovent Product Groups that cover specific components.
www.eurovent.eu/publications
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