Electrical

Running Electrical Supply to Garage from House at bottom of garden.

Anonymous user 28/02/2024 - 3.22 PM

Hi there. Apologies in advance for the long posting ..... Am rebuilding the double garage at bottom of my garden, to include own personal gym, plus normal garage facilities and a few extra sockets for tumble dryer, spare freezer etc. Gym will have a plug and play sauna cabin in it aswell as a small electric shower (with its own RCD). Also lights etc. Its a big garage - 7m x 10m. Need to take electric supply down there as existing one is from the 80's and rotten - Ive pulled it all out when the house CU was replaced 6 years ago. I left some spare RCD slots in the CU, in anticipation of running the garage cabling. Want to bury the cable underground alongside the sewer run for the new manhole and drains, as need to take water done there too. I know I need armoured cable, maybe sleeved in some 1.5inch waste pipe all the way Questions are: 1.Will the supply be affected by the run length? The run distance from existing CU in the house to new CU to be installed in the garage would be around 35 metres (its a long garden) 2. Also what size cable would i need? Does the cable make a difference? and what is SWA cable? Any better? 3. I know its notifiable work to a Building Control guy (I'm using private BC company just for this Part P work as I dont need Building regs for anything else on an outbuilding), But can the contractor do that right at the end of installation or does it need to be done in same way as prior Approval works. 4. Electric board only put in a 60Amp head when they replaced it a few years back as it was cracked, and not a 100Amp, despite my request. Will this have a bearing on the load taken down in the garage? and what is used in the house??? I am planning on using a NICEIC installer, and would welcome any advice on the best way to approach the problem. Thanks for all help given!