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

  • State Not Answered
  • Locked Locked
  • Replies 33 replies
  • Subscribers 44 subscribers
  • Views 4401 views
  • Users 0 members are here
Options
You may also be interested in
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

EV Charging and Lamp Posts

richard64

We have a job wiring lamp post lighting in a private car park.

Somebody has decided that an EV point will be fitted at each lamp post and will supply the light.

When you apply the 3% volt drop for the luminaire, obviously the cable size increases substantially.

Any thoughts?

Parents
  • 0

    The design, and in fact the whole idea has not been thought through. Do you have a 3 phase supply, and how big is it? How many cars fit the car park? How many chargers are envisaged? This idea to supply some odd level of chargeing is daft. I suggest a large transformer, and a ring main or several, around the car park, probablly 300mm al conductors. The place to start is a 500kVA (or more) TX with TNS distribution, and 3 phase chargers, then it is simple. The lighting circuits should be separate because the cable cost will be less than the cost of jointing. Follow DNO practice. Perhaps the car park is for 10 cars, in which case ignore the charging altogether.

Reply
  • 0

    The design, and in fact the whole idea has not been thought through. Do you have a 3 phase supply, and how big is it? How many cars fit the car park? How many chargers are envisaged? This idea to supply some odd level of chargeing is daft. I suggest a large transformer, and a ring main or several, around the car park, probablly 300mm al conductors. The place to start is a 500kVA (or more) TX with TNS distribution, and 3 phase chargers, then it is simple. The lighting circuits should be separate because the cable cost will be less than the cost of jointing. Follow DNO practice. Perhaps the car park is for 10 cars, in which case ignore the charging altogether.

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