|Ian Usmar||16/01/2021 19:20:39|
|68 forum posts|
So at present I have a consumer unit in my workshop / garage but it is in the totally wrong location and also needs updating. I have a quick question if I move it can I just run some temporary cable from the new unit to a junction box connecting to the current wiring whilst I sort out some other issues, I need power as there is a fridge freezer that need to stay plugged in ?
|457 forum posts|
Yes, with care, but If you have a local sparky, I would run it past him first.
Edited By br on 16/01/2021 19:39:54
1905 forum posts
Buy some 30A joint boxes from your local hardware shop & some green earth sleeving. Take care & always work dead. Never live.
|Grindstone Cowboy||16/01/2021 21:03:19|
|486 forum posts|
Two suggestions (whoever does the work):
Include a separate double pole isolation switch in the feed to the new/altered CU so future work can be undertaken more easily;
Consider a suitable extension lead run from the house to power the freezer for the time it takes to get the new circuit installed - maybe a couple of days at most? Removes the temptation / opportunity to work on a potentially live circuit.
|Martin Kyte||16/01/2021 22:05:05|
2197 forum posts
And another suggestion fit an RCBO before the Main RCCB/RCD and MCB's just to run the lights. This will ensure that the lights stay on if the main RCCB/RCD is tripped. Avoids suddenly finding yourself standing in the dark.
|1909 forum posts|
Better still fit a Non Maintained Emergency light with power supplied from the lighting circuit so if the lighting circuit power fails the Emergency light will provide sufficient light to allow safe shutdown.
|phil hughes 2||17/01/2021 02:24:50|
|11 forum posts|
split the heavy power draw machines to separate halves,and also split the lighting,so if you trip 1 rcd the other is still live with lights etc.if you do use one dont forget to split the neutrals to the corresponding side.
i would do a new rewire to the new consumer unit and when your ready,then run the cables to the old location,use one of these 30A 3-Terminal Heavy Duty Junction Box Black | Junction Boxes | Screwfix.com
ONLY CONNECT OLD TO NEW ON A DEAD SYSTEM
hope it is of some use
|Howard Lewis||17/01/2021 10:40:37|
|4397 forum posts|
Like Emgee, my shop (with no windows ) has a mains maintained Emergency light. If the mains drops out for any reason, it provides light so that everything can be switched off, and an exit made in safety.
|1525 forum posts|
If you live in the U.K. this might be notifiable work under Part P of the Building Regs maybe be best to check that out first.
|Martin Kyte||17/01/2021 11:36:10|
2197 forum posts
I suggest you do both.
|Frances IoM||17/01/2021 11:58:28|
|993 forum posts|
|Some years ago I replaced the MCB breakers with RCBO's and by removing the original double width high current RCBOs gained space to add additional circuits so could split lighting circuits so cellar workshop unaffected by rest of house (I also added in an emergency maintained light - cheap but does need regular testing) + to add an additional ring circuit for the workshop as well as isolating the original cct from the rest of the house.|
Edited By Frances IoM on 17/01/2021 11:58:48
|1098 forum posts|
Is it true that machine toolsin industry will have to use 12v DC lighting?
My workshop electrics were installed by me 25 years ago and works quite satisfactorly. However I do get fed up with the slow noisy start up of the strip lights and I am very aware of the better light from modern LED strips. I use mains LED lighting on the lathe and will fit such lighting to the milling machine soon. The change to 12v DC for the machines appears to be a no-brainer.
Thanks for the information about non-maintained emergency lights. Two will be ordered this afternoon.
|719 forum posts|
Only notifiable if the work is in a bathroom, kitchen or outside wiring/sockets/lights in garden as far as I can remember. If the worshop/garage is connected in a properly installed manner with the correct protection at each end it is considered to be inside. I see no problem with moving or replacing the comsumer unit if it is done properly. I would suggest using an extension cord to power the freezer as suggested by Grinstone Cowboy.
|927 forum posts|
states that replacement of a consumer unit is notifiable under Part P
|1525 forum posts|
I have not needed to look at Part P for a long time and understand that it changes, but consumer units used to be specifically mentioned as requiring notification. That’s why I suggested checking.
mgnbuk must type a lot faster than I do.
Edited By V8Eng on 17/01/2021 14:20:00
Edited By V8Eng on 17/01/2021 14:28:11
|719 forum posts|
I have always understood that the main consumer unit was reportable but any secondary ones are not.
" All other electrical installation work is non notifiable - namely additions and alterations to existing installations outside special locations, and replacements, repairs and maintenance anywhere. " Special locations include kitchen, bathroom & garden instalations.
Edited By Oldiron on 17/01/2021 14:46:23
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