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So the more you expensive you are the better you are. Ok, if you are not prepared to offer any help thats fine, no problem. Its easy being brave behind a computer

Is that a hilarious way of saying you can't help me. Do you have a whole routine?

I am having some difficulty completing my PIR paperwork. I need information on the max ZS permitted by BS7671 for several protective devices. I have hunted on the net with little success. I will give you as much info as I have 1. square D thermal-magnetic circuit breaker 100amp SFA3100. IEC...

Thanks for your reply I take your point regarding the 2 core SWA and will run it in 3 core I will hunt down the brown/red book and do the maths on the volt drop. Appreciate your help

Yes I was planning to. I get the impression from you this would be bad, forgive my ignorance but can you tell me why

Wow that Immodium is brillinat, instant results. Thats feels much better, thanks for that ban-all-sheds. I may be a complete **** but can you help me in clarifying if 6mm 2core cable is OK for this installation.

Thanks for your reply I was more thinking of volt drop concerns but in terms of load possibly a computer, occassional lawnmower, maybe a fridge.

I have to run a supply from a house to an outhouse in a garden The outhouse DB will have 5 sockets and approx 3 lights, not a lot The run is approx 50 metres, should i run it in 10mm or can i get away with 6mm? Also due to the escalating costs of cable is there any reason why i cannot run it...

Perfect, paperwork complete thanks to you all. Cheers and much appreciated.

merlin gerin

I have a printout from AMTECH and it states a 60947-3 is an isolator and 60947-2 is listed in the general protective device category. But i cannot find anything anywhere else

I was under the impression a 60947-3 is an isolator and a 60947-2 is an overcurrent protective device

Hi Doing a PIR and am trying to find max values for BS 60947-2 MCCB's Does anyone out there know this? Any help would be appreciated thanks

Thanks fellas for your replies. I need CPC CSA for sizes 1.5, 2.5, 4.0, 10.0 and 16.0 Is there somewhere or someone who can help me with this thanks

Brilliant, thats exactly what I am after. I do not have my paperwork at hand at the moment, tomorrow I will post cable sizes etc.. By the way where did you get this info from?

Doing a PIR today. MIMMS cable using metal sheath as CPC, how do I determine CSA of the CPC for schedule of circuit details. I am really not sure what to do on this, any suggestions are welcome

Thanks fellas. Emergency light fitting problem has been rsolved and MCB is rarely tripping out which is tolerable. Your right I need to do an insulation test but its an ancient 3 phase DB with no neutral circuit identification. I am not permitted to flash out the neutrals so I suppose theres not...

I have a maintained emergency fitting with built in photocell. The circuit has a key switch which can override the circuit leaving it permenantly on. As it stands I have a permenant live to charge the fitting, however. The problem is once i put my hand over the photocell to simulate darkness it...

I have been asked to fit a burglar alarm in a 2 bed flat. It has just been refurbished and looks all lovely and tidy. I know very little of burglar alarms and browsing through my TLC catalogue there seems to be a wealth of options. It needs to be unobtrusive as the place is immaculate, I...

JohnD you were spot on, from left to right terminals 1, 2 and 3. T1 is Neutral, T2 is Switched live and T3 permenant live.