Discuss Bonding tray in 18th edition in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
The requirement to earth or bond tray is the same as it’s always beenI've not yet got a copy or read the 18th ed
But I heard the other day from a young Engineer at work who's doing the course ( his first time doing regs exam) that in the 18th it's compulsory to bond all joins in tray etc
Can anyone elaborate on this?
Yes true ,it has to be continuous any cut in the tray will hinder that hence you put another link to make it continuous.I've not yet got a copy or read the 18th ed
But I heard the other day from a young Engineer at work who's doing the course ( his first time doing regs exam) that in the 18th it's compulsory to bond all joins in tray etc
Can anyone elaborate on this?
Yes true ,it has to be continuous any cut in the tray will hinder that hence you put another link to make it continuous.
I would say it is extraneous.Why does it have to be continuous? It's generally just another bit of steelwork, neither extraneous nor exposed conductive part.
It is a safety precation,it might introduce potential depending on wher and how it is istalled.Well does it introduce a potential to the location it serves?
Is it in good contact to an outside earth at true earth potential?
I doubt it’s going to be extraneous but then I’m not on site.
Is it an exposed conductive part ie does it form part of the electrical installation or is it mearly a support system for the cables ?
Bonding randomly can create its own hazardsIt is a safety precation,it might introduce potential depending on wher and how it is istalled.
I thought by bonding it you are establishing contact with the outside earth
Cable tray couplers.Yes true ,it has to be continuous any cut in the tray will hinder that hence you put another link to make it continuous.
Reply to Bonding tray in 18th edition in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
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