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Been to look at a job, the property is a 1st floor flat 3 bed , the service head is situated downstairs in communal external meter cupboard with 16mm tails (standard tails not PYRO 10mm which I have seen before) rising to the flats CU more than 3 metres away to board which is a BS3036 board...

if anyone is familiar with wiring of these help would be appreciated, this is the one:  http://www.rbstarelectrical.co.uk/products/5650s  multiple press switch points on 4 halls and landing total of 10 points , starts at board from a 60898 B6 (red) , then the return Black used as switch live...

New garage supply from 13a FCU on ring , 32 60898 , 80a split 30ma , Circuit is as goes  Spur (from exisiting Ring) to Outside double socket garden- then to shed DP isolator - x2 sockets , then FCU to 5a for LED fluorescent - 12 metre run spur to fluorescent 2.5 and 1.5  , i would say minor...

has anyone been using whisk brand SPRINT Grommets for am3 metal boards , just ordered 3 sets that come in a selection pack of 20 25 32mm, any reviews would be welcome

hi anyone else having trouble logging in to NICEIC online this evening 8/12/15   20:38

Ring main tested everything all sound circuitry , mcb Wylex NB30 , 30a type 2 , suddenly trips say after 4 days, 2 days random etc , then doesn't reset , then resets again a day later , i think it could be the bi metallic strip on its way out or the solenoid , any pointers would be useful or if...

6 gang consumer allready fitted, ELCB between meter and consumer, square D brand old type with 100a main switch and B types no RCD in the existing board itself . wanting to add shower, so the most logical way would be to split tails in henley 100a , and run new 25 tails to shower kit enclosure...

does anyone know if upto date Wylex NHXBs will fit in place of a Wylex NB type MCBs ?, i don't think they sell these anymore as new , was just wondering if there is any equivalents you can buy new or is it an ebay hunt. cheers ladies and gents 

2 wire phase and earth trips mcb when looping at lights, if i reverse no trip and successful loop reading i.e.: Phase / earth connected on megger as normal colour co ordinated leads to points on megger, then only way to not trip mcb is to (at the lighting point) put phase lead from megger to...

New radial to garage from gang in main consumer, do i need to fill in EIC for new radial and then another for the garage consumer i.e. 2 EICs 

High Ze, on TNCS 0.70 ohms - In country area (possibly far from transformer) , getting Zs on 32a ring, 1.60, 1.66 . 1.67ohms - Would anyone suggest I convert to radial and put them on 20a 60898s  to fall within Maz Zs which is 1.74 ohms 25mm tails and 16mm PME , can't do much more , any...

Have a job garage supply 80 metres, demand no more than 4kws, but calculated 6kw 26 amps for future proofing and calculated 9.18 volt drop which is ok and below 5% or 11.5 volts on single phase 230v and maximum length on 10mm S.W.A , there is a spare gang in the house consumer, and calculations...

Hi folks , have a fault finding operation coming up, MCB trips 6 amp, RCD doesn't so a definite short. trouble is 3 bedrooms and bathroom have numerous 12v dichrorics , any tips on a good starting point , i have tried MCB on downstairs circuit and still trips MCB not the fault. IR tests next...

Minor works Form can anyone advise ? existing ring circuit, adding a 13A FCU to power fixed 2kw max wall heater, in bathroom outside zone 2, no other way to run cable , proper expensive tiled floors throughout , bathroom is single story extension , only lighting circuit in place, nearest point...

10mm Main Bonding measured end to end  0.20 ohms gas and water, can this stay if fitting new consumer?

circuit 1   -  5 metres in 6mm line /2.5 cpc and (using table i1 page 182 on site guide) i have a resistance per metre of 10.49, i have a measured value of 0.05 ohm , with this information how would i work out the tabulated value of R1 and R2? what formula. I'm in 17th edition training and have...