Is it possible for a faulty wire/bulb to trip the fusebox, even when the light switch for those wire/bulbs are off?
- Thread starter lkzbklx60
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Yes. What is tripping in the fusebox? An MCB (probably marked B6) or an RCD (with a test button in addition to the switch)? Perhaps post a photo of the part that is tripping and explain exactly what the problem is and what you have done so far. Photos and detailed descriptions always help.
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For an MCB to trip no, but for a RCD or RCBO to trip yes, an earth - neutral fault can still trip a RCD/RCBO as in the main switches only turn off the line, double pole switching of lights is rare.
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