Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Helpful Answer
  • Replies 30 replies
  • Subscribers 38 subscribers
  • Views 3545 views
  • Users 0 members are here
Options
You may also be interested in

Individual EVC's wired over 3-phases

Rich Mc

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

Parents
  • 0

    The ESQCR is clear enough regards the declared voltage of low voltage supplies:

    Declaration of phases, frequency and voltage at supply terminals

    27.—(1) Before commencing a supply to a consumer’s installation, or when the existing supply characteristics have been modified, the supplier shall ascertain from the distributor and then declare to the consumer—

    (a)the number of phases;

    (b)the frequency; and

    (c)the voltage,

    at which it is proposed to supply electricity and the extent of the permitted variations thereto.

    (2) Unless otherwise agreed in writing between the distributor, the supplier and the consumer (and if necessary between the distributor and any other distributor likely to be affected) the frequency declared pursuant to paragraph (1) shall be 50 hertz and the voltage declared in respect of a low voltage supply shall be 230 volts between the phase and neutral conductors at the supply terminals.

    The Electricity Safety, Quality and Continuity Regulations 2002 (legislation.gov.uk)

Reply
  • 0

    The ESQCR is clear enough regards the declared voltage of low voltage supplies:

    Declaration of phases, frequency and voltage at supply terminals

    27.—(1) Before commencing a supply to a consumer’s installation, or when the existing supply characteristics have been modified, the supplier shall ascertain from the distributor and then declare to the consumer—

    (a)the number of phases;

    (b)the frequency; and

    (c)the voltage,

    at which it is proposed to supply electricity and the extent of the permitted variations thereto.

    (2) Unless otherwise agreed in writing between the distributor, the supplier and the consumer (and if necessary between the distributor and any other distributor likely to be affected) the frequency declared pursuant to paragraph (1) shall be 50 hertz and the voltage declared in respect of a low voltage supply shall be 230 volts between the phase and neutral conductors at the supply terminals.

    The Electricity Safety, Quality and Continuity Regulations 2002 (legislation.gov.uk)

Children
No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines