Class I Staircase

[UNG]

I'm wondering what limitations have been agreed with the client "can't test all the stairwell fittings because there are too many" doesn't sound like a reasonable limitation to me and using the FI code for something that is clearly accessible to inspect and test isn't good practice IMO

 

[littlespark]

How long is your trailing lead?

will it reach between adjacent fittings.
Don’t have to remove them, etc.... just off any metallic part they should be earthed.

what is the wiring system? Exposed metal conduit or MICC?

 

[MJPD29]

Indeed sir, and the the Zs will be obtained. The circuit is in singles via metail conduit buried in wall. the singles go into connector blocks, then off to feed the light, and earth the fitting. Sorry for not making that clear earlier.
Well its Monday morning, ive had my coffee, and now decided the C3 is a bit harsh, so will just FI it.

Why FI? Why anything? If the zs meets disconnection time and earth has been confirmed then to me it doenst need to be recorded whatsoever. You can't just fit an RCBO and claim the it negates the need for an earth, it doesnt. You can't just code something because you can't be bothered checking if it has an earth. Even the idea of it screams incompetence. To me, its a case of you do your job properly or whats the point in doing it at all.

 

[ForkEnigma]

I'm wondering what limitations have been agreed with the client "can't test all the stairwell fittings because there are too many" doesn't sound like a reasonable limitation to me and using the FI code for something that is clearly accessible to inspect and test isn't good practice IMO

How long is your trailing lead?

will it reach between adjacent fittings.
Don’t have to remove them, etc.... just off any metallic part they should be earthed.

what is the wiring system? Exposed metal conduit or MICC?

Yeah ive got a 50m R2 lead, and have indeed been using this to get readings to known earths. My suspicions were correct in that some fittings were not earthed. Although Zs was obtained from the end of lines. I was not happy with earths being blocked, then fly lead off to the fittings. So now every fitting has been checked, and the ones which had lost the earth have been fixed. All agreed with client for extra cost. So all in all a good result.
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Thanks for your help guys, some great answers today.

 

[DPG]

Good result.

Words.

 

[ForkEnigma]

My R2 kit

 

[telectrix]

My R2 kit View attachment 60214View attachment 60214

wow !. mine is a £2 washing line (centre steel core) with 2 croc clips bodged on the ends. have to remember to knock 2.7 ohms off of the reading to allow for the resistance of the steel core.

 

[davesparks]

What on earth is unique and patented about a cable drum?

 

[ForkEnigma]

What on earth is unique and patented about a cable drum?

Tell you something, reeling this beaut in and out, sure beats a cable drum! X

 

[Welchyboy1]

is this even a worthwhile topic of discussion?

Im too busy to do the testing so I will bang it on an rcbo just in case(at customers expense)

Surely your eicr limitations box will detail the extent of the sampling you will be carrying out?

Thats what its there for