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require

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  1. N

    Seperate PIR to outside light.......stays on......

    Seems a common thread......... Outside bulk head...separate PIR.......wired..... live to PIR, neutral to bulkhead, switched live back to bulkhead, ( pir marked L and L1 but with a N???)........ Bulkhead remains ON....constantly... tried all the normal stuff switched off and on etc etc etc...
  2. S

    Does a sunbed require RCD?

    Hi I've been asked to install a power supply for a sun bed in a salon: Sunbed is 60 x 225w lamps = 13.5K Divide 230v = 59amps Table 4D2A: 10mm T&E 63amp capacity clipped direct. I'm installing a dedicated CU with a 63a MCB and isolator fed via a henley block on the meter tails for the sunbed to...
  3. A

    JIB Electrotechnical Certification Scheme (ECS) How do I apply for a JIB Card

    Hi, just a quick question about the CSCS , 17th edition and JIB cards. I finished college a year ago and have recently been looking at jobs, many of them require a CSCS card , 17th edition and a JIB card. I think the CSCS is a 1 day course and easy to arrange. I am not sure how I go about...
  4. driverman

    Rotary switches.

    Hi, As daft as it seems I have never installed a rotary isolation switch in my life. I've wired for an AHSP whereby 2 x 1 circuits are required, one of which was wired in 10.0mm. AHSP installers require 2 x isolator switches indoors by control equipment. They insist on isolator switches indoors...
  5. B

    HNC Building Services - Maths Skills Require Brushing Up!

    Hi everyone, First time poster but long time member who could use some friendly and helpful advice please. Basically I'm at that point in my career were I'd like to move higher up the ladder and after speaking to work colleagues I've been advised that a HNC/HND in Building Services Engineering...
  6. Energetic

    Does a TT Earth 0.13Ohms require a 100mA incomer?

    Had an interesting one this week, customer assures me he's on TT, DNO days the same but i'm getting 0.13Ohms on the Ze, never seen it that low befor. There's no 100mA RCD on the supply and it doesn't look as if there's ever been one, so with that reading i'd assumed it was a TN system... so my...
  7. C

    Do hand dryers require RCD protection

    Guys i'm doing an EICR at the minute. Do hand dryers for public use require RCD protection? Wired in singles in earthed steel pipe, no bath or shower in the room........
  8. M

    16A socket on a radial require 20A Overcurrent device, where's the reg?

    Hi all, I hope this is the right place to post this question. I'm revising for my 17th edition exam tonight, I qualified on the 15th edition too long ago to mention, and my on site guide says in section H3 that radial final circuits using 16A sockets complying with BS EN 60309-2 should be...
  9. R

    Do I require a fuseboard ?

    Hello there, can anyone tell me to which regulation I should have a fuseboard ? I have looked at Reg 533.1 but it does not say I cannot have one to a different regulation number. The scenario is thus: A council run block of flats. It is an outside scenario in a mains cupboard. It is supplying...
  10. H

    Require Training

    Hi all I am new to this forum and looking for some advice..I am currently doing the 2357 city&guild and I am close to completing the 17th edition but the trouble is I need a bit of hands on training.. I am willing to work for free jus to get a bit of training can anyone advice me what to do.. It...
  11. K

    how to use mulimeter analog. i require to check charger volt and ampere.

    how to use mulimeter analog. i require to check charger volt and ampere. Please help me...I want to say thank you for all your kind help.
  12. L

    22Kw Motor, 415v Cable Installation

    Hi all, Just a quick check to make sure I've got the right size cable really. I have been asked to wire up a conveyor system which has a 22Kw, 415v motor. With the following information I have determined that I require a 50mm 4 core SWA cable for the installation and would just like to clarify...
  13. i=p/u

    pir that doesnt require a neutral.

    im looking for a pir that doesnt require a neutral . im looking to replace a pull cord in a bathroom ... when i search for this i seem to get directed too the ones you would put at switch height.... these seem exspensive would their be any problems or have you any expierience in using them...
  14. D

    RCD protection in garage

    If I have a distribution circuit (to a garage with accommodation upstairs) does the CU in the garage have to have RCD protection or is it sufficient for the main CU in the house that feeds the garage to have RCD protection? Just wondering about regulation 411.3.3 additional protection as there...
  15. M

    Does Single Phase Or Three Phase Require a Neutral?

    Also, how does the neutral work on a phase system?
  16. M

    in-line fuses in fan isolator

    hi all, bit of an issue... i have a property which is has finished decor and wired in 3 plate. not ideal time to be accessing floors etc for cables and its a flat roof extension with the bathroom and utility etc not being last rooms in circuit. i would like to keep the fans we have and they have...
  17. C

    Boiler room sockets - do they require an RCD?

    Hi all A customer has had a recent PIR at a commercial premises and some boiler room sockets have been flagged as a D1 for not having RCD protection. All are in the locked room which is only accessible to the caretaker. I don't see a problem with this and don't see why they need an RCD adding...
  18. K

    SMA 400TL tripping RCD

    Just switched on and inverter goes through the motions. Just at the generating stage and it trips out the RCD. Replaced RCD, checked ALL connections 10 times each, run as 2 strings as many times before, all connections are correct. Any ideas? I don't really want to take this out now and send...
  19. S

    Testing block of flats

    Hello, Couple of questions, firstly does each flat require it's own dedicated earth to the main incoming on the ground floor of the property, zs readings are fine with the 10mm 3 core SWA that has been used. (never certed a block of flats before, jus wanted to be 100%) And, there is a...
  20. S

    solar pv and automatic disconection of supply ADS

    forget type B rcd's at minute do we have to use a .30ma rcd to meet 17th edition requirments of .4 seconds disconection times for domestic solar pv system (16amp) even if cable is surface mounted outside in conduit ? regardless of Zs as its normally low anyways to gain 1% volt drop. but...

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