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Agree with above, worsening readings when you put the lamp in is generally a neutral fault........none of the IR's measured would trip rcd!

Did an a Eicr some time back and found the following issues. 1) couldn't find binding to CW , did find a random length of 10mm next to earth clamp but gave a tug and not connected. C2 2) combi boiler in kitchen was mounted next to outside wall leaving aprrox 150 mm gap between boiler and...

Morning all, Thanks very much for the advice! I am going to write to the workshop owner and suggest that he gets a formal design done by a suitably qualified engineer. I have heard more than enough to concern me and I don't want to be responsible for getting it even slightly wrong! Cheers Dunx

They use some 3 phase equipment outside.......and no I don't have a great deal of experience on industrial kit!

Ok so lets say we use as a TT system......!

Its TNS where it enters the mains/meter position. From there a sub main feeds the DB I am talking about via a wire armoured cable. The Workshop DB is therefore connected to the TNS and also connected to an earth electrode. I don't know why the spark used both! And neutral :-)

Hi, Its both......There is an earth elecrode outside connected to the DB in question. The DB sub main is fed from TN at source, can't remember whether it was via wire armouring or core. Whats the issue there please?

Hi, I would appreciate some thoughts on this! Site has a 42 way industrial board fed by 3 core 10mm wire armoured sub main. Ze at the board was 0.60ohms, the sub main must be 60 mts long as it is fed from the mains position in a neighbouring building. The DB has an earth electrode and bonding...

Gentlemen I am sorry I have troubled you, I shall not be back.

Doh, should have said its either TNS or TNCS, I very rarely see TT!

Had a bad week Andy? Either explain or go back to college for 'people skills'

No not a college question, RCD's required as it is a domestic upgrade. Its not occurred before, I couldn't see why discrimination would be an issue as the RCBOs would be 30ma downstream. It was just me being lazy! I could simply change the 100ma for a 30ma but that would leave all circuits on...

Hi I have a CU to upgrade, its a large Wylex metal clad, loads of room and slack on cabling and dinrail mounted mcbs.Main switch is a 100ma 80A. I was thinking of leaving all as is and replacing the MCB's with RCBO's. Any reason I can't leave the 100ma in place?! Ta Dunx

How much longer do you think the new EICR forms will take to fill in? My view is that it will add about 20mins!

Just had a look on the NIC shop website and they don't have any of the new EICR forms! Apparently they are 'imminent'

Hi, Ta, yes i got caught once before on that! Unforunately this is a tenanted property and they are rarely in.

Hi, Got called out about a year ago to no hot water on the off peak side. Timeclock not working, changed for new, like for like. Got called back again a few days ago, same fault. Timeclock is faulty again, clock face not rotating or switching. Switched into manual 'on' mode but the heater is...

Hi, Oh yes, I was really gutted and feel very sorry for the lad. I did offer for him to continue as an employee and I said i would keep training him in the hope that he could gain enough experience a bigger firm could take him on. He decided he didn't want to do this and I understand that...

Well I voted with my gut instinct....Decided not to go ahead with the apprenticeship, too much of a risk. What the Case Law seems to say is that they are a on a training contract for x years. If you can't fulfill that contract, the apprentice can sue for the balance of his/her wages for the...