What is BS EN 61851-21-1 - Electromagnetic compatibility about?
BS EN 61851-21-1, together with IEC 61851-1:2010, gives requirements for conductive connection of an electric vehicle (EV) to an AC or DC supply. It applies only to onboard charging units either tested on the complete vehicle or tested on the charging system component level (ESA – electronic sub-assembly).
BS EN 61851-21-1 covers the electromagnetic compatibility (EMC) requirements for electrically propelled vehicles in any charging mode while connected to the mains supply.
BS EN 61851-21-1 does not apply to trolleybuses, rail vehicles, industrial trucks, and vehicles designed primarily to be used off-road, such as forestry and construction machines.
NOTE 1: Specific safety requirements that apply to equipment on the vehicle during charging are treated in separate documents as indicated in the corresponding clauses of this document.
NOTE 2: Electric vehicle (EV) includes pure electric vehicles as well as plug-in hybrid electric vehicles with an additional combustion engine.
Who is BS EN 61851-21-1 - Electromagnetic compatibility for?
BS EN 61851-21-1 on Electric vehicle conductive charging system is relevant to:
- Manufacturer of electric vehicle (EV)
- Electric vehicle charger manufacturers
- Electric vehicle charging stations
- Vehicle regulatory authorities
Why should you use BS EN 61851-21-1- Electromagnetic compatibility?
Electromagnetic compatibility or EMC means that a device is compatible with (i.e., no interference is caused by) its electromagnetic (EM) environment and it does not emit levels of EM energy that cause electromagnetic interference (EMI) in other devices in the vicinity.
BS EN 61851-21-1 provide guidance on function performance criteria, the test severity level, immunity of vehicles to electrical fast transient/burst disturbances conducted along with ac and dc power lines, immunity of vehicles to surges conducted along with ac and dc power lines, immunity to electromagnetic radiated rf-fields, immunity to pulses on supply lines.
BS EN 61851-21-1 navigates you through the test conditions on emissions of harmonics on ac power lines, emission of voltage changes, voltage fluctuations, and flicker on ac.
As a user of BS EN 61851-21-1, you can measure the ability of a device to withstand different types of electromagnetic phenomena. With BS EN 61851-21-1 you can ensure the correct operation, in the same electromagnetic environment, of different equipment items which use or respond to electromagnetic phenomena, and the avoidance of any interference effects. BS EN 61851-21-1 helps you in reducing unwanted emissions.
What’s changed since the last update?
Together with BS EN IEC 61851-21-2, BS EN 61851-21-1:2017 supersedes BS EN 61851-21:2002, which will be withdrawn upon publication of BS EN IEC 61851-21-2.
BS EN 61851-21-1:2017 includes the following significant technical changes concerning IEC 61851-21:2001:
- BS EN 61851-21-1 addresses now only EMC tests instead of other electrical tests
- Test setups are defined more precisely
- Annex A "Artificial networks, asymmetric artificial networks and integration of charging Stations into the test setup" was added
