Two lighting circuits in one room might seem odd but could prove to be an advantage if one of the circuits MCBs trip.Thanks.
One amusement I've found after a bit of bafflement and dithering is a 2 gang switch controlling 2 separate sets of lights in the same room but each set of lights being protected by a different mcb in the distribution box.
As others have said, if you have a fixed lug on the metal accessory box then the regulation is satisfied but in all honesty it’s still a good idea to install a short fly lead to the back of the box rather than just rely on a fortuitous connection between faceplate, accessory screw and accessory box fixing lug.Yes, twin and earth. The house is about 10 years old IIRC. Does just the faceplate being earthed apply to all metal fittings, light switches, fan isolators, fused spurs etc? I suspect all the backboxes are metal too.
I was taught by an uncle, a maintenance fitter, to earth the backboxes too. That was 40 years ago though, maybe the regs have changed since then.
common on a 2 gang 2 way switch one on the downstairs passage and the other on the stairs on diffrent circuitsTwo lighting circuits in one room might seem odd but could prove to be an advantage if one of the circuits MCBs trip.
Do be aware that if both lighting circuits share a common light switch, there could be safe isolation issues.
Is that 2 sources of supply in one box ?Thanks.
One amusement I've found after a bit of bafflement and dithering is a 2 gang switch controlling 2 separate sets of lights in the same room but each set of lights being protected by a different mcb in the distribution box.
not ever heard of safe isolation its instilled on inspection and testing . only a fool would just surmise its dead without testing to make sure . you wouldn't believe how many times i could have been caught out if i hadnt double checked. thats why i have lived so long without getting electrocutedIs that 2 sources of supply in one box ?
I see it on some wiring work, but don't like it.
You think you shut off that box to work on, and find you really didn't.
Yup, same here.not ever heard of safe isolation its instilled on inspection and testing . only a fool would just surmise its dead without testing to make sure . you wouldn't believe how many times i could have been caught out if i hadnt double checked. thats why i have lived so long without getting electrocuted
I got one of those new fangled pencil things for live circuit identification, it helps.
yep i generaly run one over after ive isolated just in case its not to be relied up on thoughYup, same here.
some people simply plug a radio into an outlet, turn it up loud, and then go unscrew fuses or turn off breakers until the radio goes dead.
These spilt source outlets get them every time.
I got one of those new fangled pencil things for live circuit identification, it helps.
When I still worked (multi skilled maintenance engineer) we were not allowed to use volt sticks, it had to be a proper test for dead tester (we were issued Martindale ones).Our senior AP (approved person) relied on a volt stick once instead of properly testing for dead. Luckily he just got a little tickle.