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- 20 Feb 2021
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Hi,
I'm currently designing the wiring for a garden cabin which I'm planning to self instal and employ a sparky to complete the connection to the main CU in the house and test. Here's what I'm planning, I'd be interested to hear is there are any obvious changes that might need to be made :
From House to Cabin :
30m XLPE 3 x 10mm armoured cable buried at a depth of 600mm and with a hazard layer 300mm deep.
At Cabin :
5 Way RCD consumer unit with a dedicated earth rod into ground.
From Consumer Unit :
1 x 6A feed to 3 x room lights via a 1 way 3 gang switch and 1mm 3 core insulated cable
1 x 6A feed to 1 x separate internal light/extractor fan via single gand switch and 1mm 3 core insulated cable
1 x 20A feed to 2 x double sockets (Max draw = 2KW) via 2.5mm 3 core insulated cable
1 x 32A feed to 3 x double sockets for kitchenette appliances (Max draw = 7.5KW) via 2.5mm 3 core insulated cable
1 x 32A feed to water heater (5.5KW) via (Fused 30A?) junction box/switch and 2.5mm 3 core insulated cable
I'm planning on using galvanised counduit to channel the cable.
My qustions are :
Bearing in mind the loss over 30M will the proposed cabling carry the load OK?
The electrician will advise as to how best to connect the SWA to the consumer box at the house. I have a (rather old) RCD consumer unit as well as an additional 100A RCD which feeds our oven and shower. I guess I may need to replace either the main panel or the additional box to provide a 100A option for the cabin?
Thanks...
I'm currently designing the wiring for a garden cabin which I'm planning to self instal and employ a sparky to complete the connection to the main CU in the house and test. Here's what I'm planning, I'd be interested to hear is there are any obvious changes that might need to be made :
From House to Cabin :
30m XLPE 3 x 10mm armoured cable buried at a depth of 600mm and with a hazard layer 300mm deep.
At Cabin :
5 Way RCD consumer unit with a dedicated earth rod into ground.
From Consumer Unit :
1 x 6A feed to 3 x room lights via a 1 way 3 gang switch and 1mm 3 core insulated cable
1 x 6A feed to 1 x separate internal light/extractor fan via single gand switch and 1mm 3 core insulated cable
1 x 20A feed to 2 x double sockets (Max draw = 2KW) via 2.5mm 3 core insulated cable
1 x 32A feed to 3 x double sockets for kitchenette appliances (Max draw = 7.5KW) via 2.5mm 3 core insulated cable
1 x 32A feed to water heater (5.5KW) via (Fused 30A?) junction box/switch and 2.5mm 3 core insulated cable
I'm planning on using galvanised counduit to channel the cable.
My qustions are :
Bearing in mind the loss over 30M will the proposed cabling carry the load OK?
The electrician will advise as to how best to connect the SWA to the consumer box at the house. I have a (rather old) RCD consumer unit as well as an additional 100A RCD which feeds our oven and shower. I guess I may need to replace either the main panel or the additional box to provide a 100A option for the cabin?
Thanks...