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  1. W

    Large ferrule crimping tool

    What crimpers are people using for crimping ferrules over 10-16-25-35mm2? As ones i have currently don't do that big. Cheers
  2. B

    Large heat mat

    I have installed a fair few heat mats but the one that the customer supplied today was fairly large (9m2) which had a design I haven't seen before. Usually the live and neutral from the element at at the same side of the mat but this particular mat had the live at one end and the neutral at the...
  3. S

    Frequebcy of Testing new builds in school

    Hi Fellas. Not been on here for a while as been hectic and a lot of working away. HNY to u all. anyway, just need to quickly clear this up . We are periodic testing a very large school lacally , something like 50 fuseboards etc, Small and large.I know the frequency for existing installations is...
  4. J

    Large Warehouse Fan

    Hi. I'm renting a studio in a warehouse that has a large industrial fan fitted. It's been disconnected but I was wondering if there is any way to get it up and running again and to have it powered by a plug socket. None of this will be done by me as I am not skilled enough but thought I would...
  5. T

    Large Test

    Been asked to retest on a large industrial site it had a test 3 years ago and they have results from them. Problem is they one tested about 4 circuits on each board and just wrote pass in R1/R2 column .The other 3/4 of the boards they didn,t test at all as they have asbestos in the fuse...
  6. D

    dimming large amount of downlights?

    HI, I've been asked about installing a potentially large amount of downlights in a basement kitchen/dining area. There is going to be a lack of natural light and the client wants downlights to be installed and she would like them to be dimmed too. After doing lots of measurements of the area...
  7. B

    Too large a ring main

    I recently tested a new build (mostly new build) and found 45 sockets on a large ring main in an office environment. My r1 was 1.6 ohms rn 1.6 ohms and r2 was 2.7 ohms which made my r1+r2 1 ohm roughly my zs on the circuit was also 1 ohm although I didn't test all of them. the protective...
  8. E

    large circuit

    Hi all its been a while ,(too busy) i have been to a job today but a little out my comfort zone to be honest so turned it down but sitting here tonight i was wondering how you more commercial guys or gals would have designed the circuit , job was at a commercial nursery in Wolverhampton they had...
  9. J

    Infared heating - large church

    Hi, I've been asked to install 12 x 2.4kw infared panel heaters in a church. The cable run for the furthest point of the first row of 2 heaters is 44m, next is 40m, 36m, 32m, 28m, 24m. The plan is to have 3 x interlinked thermostats. I've never installed this type of system before and was...
  10. S

    High reading on grey phase, all across a large site

    Ive come across an issue on a large site i work on. May be something simple, but im struggling to figure out what the problem could be. The site has a HV ring and 6 HV-LV sub stations. This is usually split. I have noticed in the last few months that when testing for an earth loop reading on the...
  11. M

    Insulation for large crimps?

    Hi all, new to the forum so go easy!Ha......At work we have a pump with a 3 phase motor attached.....the wires that come from the winding are 50mm....The lid with the incoming flex has 70mm tails.....yes i know this is wrong but i was going to use 70mm through crimps and just crimp it a bit...
  12. S

    E-on meter fixer job

    Hello, was wondering if anyone has got a job as a meter fixer with E-on or any other large outfit and what did the practical and written tests involve ?
  13. G

    EICR on large hotel

    When we have recently undertaken a EICR on a large hotel,we have found that the 13amp sockets within the bedrooms are not protected by an rcd,and obviously can be used for any use by ordinary persons.Should we advise to protect them by rcd's to comply with current regs,although the rest of the...
  14. D

    Large Cable Size Help

    I have to install a cable from a new supply meter to an existing DB (no the DB cant be moved or the supply installed closer) The supply is 400V 3ph 400A The cable run is 120m long 30m of which is burried the rest of will be clipped direct. The design current is 280A but may go up to 380-400A in...
  15. T

    Large scale solar for static caravans

    Hello all, having spent a few days researching solar panels, contacting companies and doing maths I'm looking for a second opinion on my issue; I have been tasked with an appropriate solar means of powering a static caravan 30ft x 9ft roughly in size. To fully power the home it would take...
  16. R

    Up Down wall lighting for a large lounge with 12 foot ceilings

    Hi, i am looking to find some large up down wall lights, but am having trouble finding anything larger then 30 cm in width. Any suggestions and ideas would be great! Need to be quiet modern but be able to cast light and show off the amazing coving in this Victoria period building. Thanks
  17. P

    max zs of large fuses

    BS7671 tables only go to certain size fuses eg how can I find max ZS of 400 amp BS88 - 2 on niceic test sheets they ask for a max value out of regs table I have only managed to find a busman fuse chart which differs been told by employer to use these values on sheets any input would help thanks
  18. P

    max zs of large fuses

    BS7671 tables only go to certain size fuses eg how can I find max ZS of 400 amp BS88 - 2 on niceic test sheets they ask for a max value out of regs table I have only managed to find a busman fuse chart which differs been told by employer to use these values on sheets any input would help thanks
  19. K

    Liquid Cooled Inverter

    Speaking with a potential customer today that had been quoted on a German liquid cooled inverter, personally not come across this but it is suppose to be great for use in lofts etc as it is not cooled by air. I said I think he has been told a load of sales rubbish but has anyone come across this...
  20. sythai

    Smoke/fire alarm system large dwelling..... advice please

    Morning all... I'm in the process of pricing up a new build (domestic house), quantifying off some basic floor plans. No detailed electrical spec as such, just what the client has marked (just love these ones!) Sorted electrical spec fine. But just trying to figure out the best way to...

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