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protection

30mA RCD protection required for existing circuit?

If I was replacing an existing light fitting in a domestic premises, making no alteration or addition to the circuitry, would I then be obligated to provide that circuit with 30mA RCD protection if it didn't already have it?
- spud1
- Thread
- Mar 5, 2019
- 30ma circuit existing protection rcd required
- Replies: 13
- Forum: UK Electrical Forum
P
C/U Tails in wall - protection required

The existing C/U is at almost ceiling height in a room and the old tails are plastered in the wall below it before going outside to the meter cupboard (they have no protection and are just covered in plaster). The tails have to be upgraded when the C/U is replaced, so I could take the option of...
- peterhyper
- Thread
- Feb 19, 2019
- protection required tails wall
- Replies: 3
- Forum: UK Electrical Forum
T
RCD Protection for submains

Evening all We have been asked to do some redial work picked up by a testing company i a hostel. It has been picked up that is no RCD protection in the rooms There are 5 submain circuits that feed the 20 consumer units, 4 consumers units per submain (B32) Each room have a consumer unit which...
- TJC1
- Thread
- Feb 11, 2019
- protection rcd
- Replies: 96
- Forum: UK Electrical Forum
Protection to be used on a 5KW motor???

Hi, I'm Dave and I was wandering if I could have help with something. If I were to wire a 5KW motor what means of protection should be incorporated into the inverter for compliance with BS 7671? Thanks! :)
- Chinese Dave
- Thread
- Feb 8, 2019
- bs7671 inverter motor protection used
- Replies: 9
- Forum: UK Electrical Forum
B
RCBO protection type, to settle a debate

Hi, My QS believes an RCBO provides fault protection only, and we have to enter N/A on the test certs for the additional protection. Is this correct? We deal with TN-C-S and TN-S domestic. I assumed it provided both Thanks!
- brucey2343
- Thread
- Feb 6, 2019
- protection rcbo type
- Replies: 14
- Forum: Electrical Course Trainees Only

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