Tell us about your faults! | Page 104 | on ElectriciansForums

Discuss Tell us about your faults! in the Australia area at ElectriciansForums.net

K

kung

Hi ALL
Just thought id put this one up for all those faults we find.
heres one to kick it off !
Domestic RCD tripped and wouldnt reset cause was a blown low energy light bulb.:D
There you go now for yours !
 
A few years ago I was conducting a PIR inspection in a small joinery premises. There were two DBs in the building one being on all the time and fed the office small power,all lighting and alarms etc.
The other DB fed the machinery in the joinery workshop,this DB was supplied via a 3 phase RCD.
Heres the good bit, the emergency stop buttons in the workshop were wired so when one of them was
hit it created an N to earth short and thus tripped the RCD supplying the machine DB.
Apparently it had been like that for years.
 
Had one the other day a live phase wire arching to metal backbox only when voltage applied remove excess wire fitted correctly did continuity and if tests before powering up and all good. According to client it has been like that for years.
 

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