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sorry, its the megger mft 1553 95% sure anyway.

Are we measuring the external fault path for each circuit back to the transformer then and why does it have to compare between n and e? If this is a silly question tel me to beat it but the info would be much appreciated. :Salute

i was taught 3 lead on tncs and 2 on tt and tns! my mentor may be wrong though and this is what annoys me because you only learn what u have been taught!! He may have shown me everything wrong? :|

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Hi all testing a tt domestic installation this morning, my main ze was 18.2 ohms and pfc was 13.3 amps. My concern is when i test zs on each circuit my megger is set on no trip, [dual rcd] the display shows trp but rcd does not drop out. When i set it off no trip the rcd trips out which i would...

I have seen some of these stripping tools advertised but im a little unsure if they will be worth the money bout

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like noz says the first floor is usually in with studs in place, if you have 2 go back to 1st fix the first floor surely this is not cost effective for yourself and the client. I do it in stages. 1st fix 1 day 2nd fix. 1 day

My understanding of it is that if a fault exists in a circuit then the appropriate cpc will allow the high fault current to trip the protective device. Maybe it is only a very basic understanding but id like to read other posts. Im a house basher and know 1 has ever sat me down and told ne the...

worked with a lad installing earth rods outside some bungalows, yep u guessed whacked the thing straight through the main incomer, wasnt funny at the time but it tickles me nowROTFWL Nedl charged my boss 850 big ones 2 dig it up and repair, the guilty man had 100 pound a week tuk out of his...

regarding your question we work for local authority and it is in their spec to wire smokes alarms off downstair lights which in turn is protected by a 61009 rcbo!

thanx guys your experiences definetly help point me in the right direction, would any of you have any suggestions on my main water bond dilemma?

can any1 advise me please?

the only place i can get a bond to for the water is the copper pipe goin up 2 the boiler, would this be adequate? i cannot physically reach the pipe that heads towards the kitchen sink, can i just put this in comments box on certs?

thanx andy, my guess at that then wud be to recommend every year or change of occupancy but by the regs only once every ten year!! wud u agree? Also i was at job yesterday upgrading earths and after locating stop cock(plastic pipe) i popped floorboard and had look under. About 1metre under floor...

hit the wrong buttonWet Fish, a landlord has asked me does he have to have a pir done yearly and for every new tennant whichever comes sooner? any advice plz?

Even

Thanx kme

Thanx guys. I forgot to mention, no main bonds in which i am upgrading as part of the cu change anyway but i can only ascertain that the main water comes in property in plastic and comes out the top of the stop cock in plastic, un usual in the area. Client says its the only 1 he knows of, the...

Hi, just needing sum advice on cu change. Q1. No cont of cpc on down ring, is it k to disconnect damaged cable from each relevant sckt and have 2 radial circuits? Q2. Cont of L - L on up ring 17.9 ohms, is ti ok to do the same as above? Q3. Landing light has borrowed neutral, can i put both...