Garage supply using PME or earth rod.

[Octopus]

But WHY such a high design load ?

 

[telectrix]

SHHHH. cannabis farm in shed.

 

[123]

But WHY such a high design load ?

At 40m...Electric Heating, Electric Water Heater. Saniflow. Lighting. Sockets. Electric Roller Door

 

[Wilko]

Hi - are you thinking to install EV charging in the garage ? .

 

[PEG]

Well, the shed lighting will be temporary as it's a temporary structure, so good advice, skyhooks for the lighting circuit then. Witchcraft for the sockets?

Good sparks can be hard enough to source...but a competent witch,once found,should be treasured.

Hats are good for splaying cores,working live...just throwing it out there...

 

[richy3333]

A fence is a fixed structure, it's new, concrete posts, concrete gravel boards, it won't be coming down very easily or anytime soon. Not converting the garage into a room, however I am sizing up for the length of the run 40m), volt drop etc and anything to be added to the garage down the line. I am aware that you don't have to have an SWA on rcd protection, I just prefer prefer to protect the armoured running to the garage.

A fence might be a fixed structure but its not a permanent one. Get the shovel out and bury the cable in a duct.

Why isn't an armoured cable protected by an MCB? Why do you need it on an RCBO?

 

[cairns1990]

Just had a proper measure it's 55m run. In terms of digging a trench and putting it in a duct, that might be alright if its a new build and there was a digger there, would want to dig down at least 500mm with massive conifers where the run is, no thanks. Surface in a situation I think is the better bet and safer bet, where I have to cross the ground from the fence to garage will dig it down and run it in duct. Allowing for full demand in the garage at 8kw, will never reach that but never know in the future if it was made into a workshop. Yes will put it on a 50A MCB in the house, which will go to a 2 way rcd board in the garage.

 

[DPG]

Seems like the trench method is not really practical. In the circumstances I can't see a major issue running it along the concrete fence. Might not be ideal but not really going to cause any problems. At least it's visible.

What's the 8kw loading likely to be? Seems high.

 

[cairns1990]

Just allowing for full demand on the ring and lighting circuit, later down the line may wish to add car charging point, heater in garage etc. Also want a decent size on the earth back to MET.

 

[telectrix]

Good sparks can be hard enough to source...but a competent witch,once found,should be treasured.

Hats are good for splaying cores,working live...just throwing it out there...

i once found a competent witch. married her. she was a good cook, but my god, she could nag for England.

 

[Pete999]

i once found a competent witch. married her. she was a good cook, but my god, she could nag for England.

Mine has a City and Guilds in Nagging. Not a Electrical Trainee course either many years of training, followed by many years of honing the nagging equivalent of an Oscar, like a fine wine it matures as the years pass.