Sorry Steps, did not do Ze. Only did Zs, IR and timed RCD. It was only moving a couple of sockets so did not do full tests. It was just the earthing arrangement that threw me. Zs on sockets 0.80
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The...
Just a quick one. Need to do i minor works cert for a job and this was the earthing arrangement. Is this TN-S. Usually the earth is attached to the outer armour. It has been changed from a TT system at some point as there is an earth spike outside with a cable going through the wall which has...
Hi trainee-sparks,
I began college at 40 in 2006 did 2330 level 2, then level 3, then 2382 17th edition. At 43 applied to Napit passed assesment was told I needed 2391 within a year, so back to college for about 8 weeks passed 2391.
I was still working at a local factory while all this was...
A local farmer has fitted a high volume 3 phase fan in the end of one of his chicken houses. He has asked if I can wire it up so that if the temperature of the shed gets to high the fan will kick in. Any suggestions on a robust method of achieving this.
The thermostat control would have to be...
I am trying to compile a bit of a list in the back of my GN3 book of significant changes in materials and methods to help when estimating the age of installations.
Ones I have so far are:
VIR cable pre 1958
Wooden CU / No earth sleeving pre 1966
7 strand T+E for sockets pre 1970
Green earth...
Has anyone out there ever come across any stainless backboxes? I have a client who has a problem with damp in the walls. The ordinary galv boxes start rusting after a short while and stain the wallpaper. I have been given the task of replacing the worst ones and was just looking for an...
Hi Danny,
I know just how you are feeling I never seem to get a minute. I went self employed in June last year. I've worked every day, except for two weeks at xmas, I work most Saturdays and I've worked a few Sundays. I am owed about 3 grand at the moment and my diary is full for the next...
The bungalow has the meter in an outside box, next to this is a distribution board with 3 80amp breakers. The distribution box has the main earth terminal in it with bonding conductors for water and gas. Each breaker controls a phase. From the bottom of this box are 3 16mm 2 core swa cables one...
I have just completed a rewire on an old bungalow. The house has a 3 phase supply with a distribution board next to the meter outside. One phase serves the bungalow another serves a workshop and garage and the third goes down the garden to a granny flat. I have only worked on the bungalow on...