Individual EVC's wired over 3-phases

Question

Hello all 
 Please could anyone advise of any issues for installing single phase EVC's from a 3 phase supply. 
 Proposing there are 6 x 7kW chargers that are located adjacent to each other and wired from individual phases of a 3-phase supply in a local feeder pillar. 
 Each single phase charger circuit is protected separately in accordance with 722.533.101. The query is if there are any comments on the adjacencies of the vehicles given they are wired on separate phases? 
 Thanks in advance

mapj1 · Accepted Answer

Given that most cars could also take 3 phases as well as single phase charging, there really should be no problems. The important thing is that the earthing to all cars that may be simultaneously touched is common, so there is no risk of there being an exposed voltage difference. 
 ~Mike.

gkenyon · Answer

The issue of "simultaneously accessible single phase equipment on different phases" comes from industry guidance that was prevalent quite a long time ago ... based on what was in the Wiring Regs at the time. It's no longer an issue for single-phase equipment supplied from different phases of the same installation (and earthing system) to be simultaneously accessible. 
 It's now accepted that if you can touch live conductors of two phases of an LV system at once from single-phase equipment then either: (a) two faults have occurred (and BS 7671 only deals with single-fault conditions); or 
 (b) there have been two breaches of legislation.

Individual EVC's wired over 3-phases

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