11-02-2015, 08:15 PM
I'm pretty sure of my mechanical skills and basic electrical capabilites (got a degree in EE and built a house or two, the current one being pretty high tech). But I'm far from over confident and am out of touch with the 2011 and subsequent changes.
The workshop has one of the three phases and is earthed back at the house and fused at 100A at the supply inlet. There is a subsequent fused 60A isolation switch post utility meter and then a 100A armoured cable underground to the workshop which has several earthing rods and a buried grid - that was designed and installed by specialists -the feed screen is indeed isolated at the workshop. Live and neutral go into a single consumer unit with a two pole rcbo followed by per-circuit mcbs...., i.e. if it trips, the workshop goes dark.
I like the idea of a split consumer unit, presumably with the lighting unit and alarms on say a 10A rcbo and the rest on a 50A one.... I have a mate who helps me who is a qualified electrician but he mainly does data centres, not domestic...
Note. One of the other phases is for the main house, the other for a cottage and another workshop in the grounds. All three phases are also used by the ground source heat pump in the house, but thats all...
The workshop has one of the three phases and is earthed back at the house and fused at 100A at the supply inlet. There is a subsequent fused 60A isolation switch post utility meter and then a 100A armoured cable underground to the workshop which has several earthing rods and a buried grid - that was designed and installed by specialists -the feed screen is indeed isolated at the workshop. Live and neutral go into a single consumer unit with a two pole rcbo followed by per-circuit mcbs...., i.e. if it trips, the workshop goes dark.
I like the idea of a split consumer unit, presumably with the lighting unit and alarms on say a 10A rcbo and the rest on a 50A one.... I have a mate who helps me who is a qualified electrician but he mainly does data centres, not domestic...
Note. One of the other phases is for the main house, the other for a cottage and another workshop in the grounds. All three phases are also used by the ground source heat pump in the house, but thats all...
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