I have a piece of equipement I want to run on 3phase in my garage.
My new house already has all 3 100amp phases presented in the utility cupbaord but only one phase taken to the meter and on to the CU. My energy company can add in an addition 3phase meter but it'll incur a £50/yr standing charge or they can swap the meter for a 3phase free of charge).
What I'd like to do is keep the existing house CU (currently on phase 1) and run a 3phase feed to the garage to feed my metal working lathe and feed all the other garage electrics from (say phase 2)
So...
L1 to existing single phase house CU
L1/L2/L3 to 3phase CU >>armour cable >> Garage 3phase CU and distribute L2 to Garage sockets/lights
The only issue with this is that I need to add in isolation/protection in the house utility cupboard for the 3phase cable running to the Garage.
Can I do this or would I need to repalce the house single pahse CU with one big 3phase distribution board in the utility cupbard and just branch off the single phases (L1 for house, L2 for Garage) and run L1/L2/L3 to the workshop for the Lathe?
Thoughts?
Is there any benefit of 3phase distribution in the house (as oposed to the safety down side of having 415v) dist in the house?
Ultimately whilst the house is being renovated most of not all cabling will be replaced/renewed.
Cheers,
V.
My new house already has all 3 100amp phases presented in the utility cupbaord but only one phase taken to the meter and on to the CU. My energy company can add in an addition 3phase meter but it'll incur a £50/yr standing charge or they can swap the meter for a 3phase free of charge).
What I'd like to do is keep the existing house CU (currently on phase 1) and run a 3phase feed to the garage to feed my metal working lathe and feed all the other garage electrics from (say phase 2)
So...
L1 to existing single phase house CU
L1/L2/L3 to 3phase CU >>armour cable >> Garage 3phase CU and distribute L2 to Garage sockets/lights
The only issue with this is that I need to add in isolation/protection in the house utility cupboard for the 3phase cable running to the Garage.
Can I do this or would I need to repalce the house single pahse CU with one big 3phase distribution board in the utility cupbard and just branch off the single phases (L1 for house, L2 for Garage) and run L1/L2/L3 to the workshop for the Lathe?
Thoughts?
Is there any benefit of 3phase distribution in the house (as oposed to the safety down side of having 415v) dist in the house?
Ultimately whilst the house is being renovated most of not all cabling will be replaced/renewed.
Cheers,
V.