scope:

This part of IEC 61851-3 series (in a first step as Technical Specification for three-year period) together with part 1 of IEC61851-3, applies to battery swap systems (BSS) for removable RESS and/or traction-battery of a light electric road vehicle for purposes of transfer electric power between portable RESS and the supply network, with a rated supply voltage up to 480 V a.c. or up to 400 V d.c. and a rated ìoutputî voltage up to 480 V a.c. or up to 200 V d.c. The supply systems described in the IEC 61851-3 series are primarily intended for the use by EVs of category L hereinafter referred to as light electric vehicles (light EVs). NOTE 1 - Light EV includes all electrically propelled two and three wheeled vehicles of Category L1 up to Category L7 according to the definition of ECE-TRANS-WP29-78r2e and all electrically propelled or assisted cycles.