- Reaction score
- 305
thanks
Determine the maximum permitted value of voltage drop for each of the following circuits.
a) A 230V lighting circuit supplied directly from a public low-voltage distribution system. (1 mark)
b) A 400V three-phase motor circuit supplied from a factory transformer. (1 mark)
c) A 230V immersion heater circuit in a domestic installation.
a) 3% 6.9v
b)
c) 5% 11.5v
i dont know the answer to b, i am assuming its 5%, but why the difference between a and c? i would have thought all 230v circuits would be 3%?
there is not a lot of info on vd in gn3, i am going to have a look through amberleafs sticky
Have a look at Appendix 12 in BS 7671 it covers VD only.