- Reaction score
- 4
hi guys
can someone explain to me this
a 3 phase supply to bungalow ok
one phase to house ok live
neutral& earth in henley blocks in meter box
neutral to 3phase meter from henley block
we have l1 l2 l3 lives to tpn 100amp switch fuse ( no neutral )
earth connection via earth block
from there we have a 16mm 4 core swa ( black ,red ,blue & yellow)
black --l1 fuse
red-- l2 fuse
blue--l3 fuse
yellow -- earth to henley block
thus feeds a 3phase board in workshop
No neutral to it.
1..???? is why is there no neutral to it
its not connected to earth
swa at cu is bonded at the armourings back to earth connection in board
and not at tpn ( discrimination)
2..??? why does all the 3phase equipment still work without a neutral
i am having to update a single phase cu to a 6 way to accomodate a solar pv 9.9kw system
luckily its got a 10.mm feed to it.
thanks
jon
can someone explain to me this
a 3 phase supply to bungalow ok
one phase to house ok live
neutral& earth in henley blocks in meter box
neutral to 3phase meter from henley block
we have l1 l2 l3 lives to tpn 100amp switch fuse ( no neutral )
earth connection via earth block
from there we have a 16mm 4 core swa ( black ,red ,blue & yellow)
black --l1 fuse
red-- l2 fuse
blue--l3 fuse
yellow -- earth to henley block
thus feeds a 3phase board in workshop
No neutral to it.
1..???? is why is there no neutral to it
its not connected to earth
swa at cu is bonded at the armourings back to earth connection in board
and not at tpn ( discrimination)
2..??? why does all the 3phase equipment still work without a neutral
i am having to update a single phase cu to a 6 way to accomodate a solar pv 9.9kw system
luckily its got a 10.mm feed to it.
thanks
jon