require

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  1. 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...
    • i=p/u
    • Thread
    • battery doesnt electricians' talk neutral pir require switch
    • Replies: 15
    • Forum: UK Electrical Forum
  2. 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...
  3. M

    Does Single Phase Or Three Phase Require a Neutral?

    Also, how does the neutral work on a phase system?
    • MattyH
    • Thread
    • electricians' talk neutral phase require single single phase three three phase
    • Replies: 30
    • Forum: UK Electrical Forum
  4. 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...
  5. 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...
    • cornburn
    • Thread
    • aus boiler electricians' talk rcd require room socket sockets
    • Replies: 6
    • Forum: Australia
  6. 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...
  7. 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...
  8. 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...
  9. D

    Does a CPC require mechanical Protection

    We have been asked to carry out some linking up eart bars on 5 blocks of flats, they want the CPC running in metal conduit, where I think that a CPC can be clipped direct, anyone know the answer and possible reg number.
  10. S

    SJIB (Scottish) Certification Scheme Sjib

    I have been trying to get a SJIB grading card but have come up against the following obsticles. I completed an Electrical Engineering apprenticeship which had all aspects of Installations, maitenance, fault finding,inspection and testing of electrical systems. I also have 17th Edition IEE...
  11. P

    what requirements do you require to install PV.

    Evening all, have ben aproached by a few customers enquiring about pv. what do you need to start installing please, I know the new c&g 2351 does go into pv,but wasn't sure is 2330 allows you to do installs! thankyou for any help and guidance anyone can give I really apreciate it! Paul
  12. C

    Re-wire done other week, now require extra circuit.

    Hello, I've never had this before so sorry for sounding silly... I did a re-wire for a customer the other week, now they have decided they would like an outside socket. Every things been tested, there's a spare way left on board so all I need to do is run a new circuit but what cert would I...
  13. J

    Yet another RCD question

    Does an RCD need an earth to operate? I know it's additional protection and works on a balance between line and neutral but does it need earth to operate? Thanks in advance Ben
  14. D

    3 phase split

    Hi guys and gals, just been called by a customer. They currently have three phase to there workshop. They are wanting that supply to feed two seperate buildings, however they only require single phase. Now my question is, aslong as i do my calculations correctly and are able to balance the loads...
  15. Goody

    External socket for power tools to use in the garden.

    Hi, I am mounting a socket on the external wall for use in the garden. I am spurring off an existing ring in the kitchen, drilling the wall to thread through the 2.5 mm T&E cable for the socket. What does “REG” say about this and what type of socket would be appropriate (socket should have its...
  16. G

    Require a PV Survey !

    Just wondered if there are any companies that require PV surveys, as i know how difficult it is to try and do everything.....be in all places.. Travelling for the odd survey can be very time hungry, I have been found to be very cost effective for companies as it frees their valuable time up for...
  17. T

    Help with breaker amp calculation

    Hi, i need to know whether my calculation is correct. I have 4 x 2.2kW Motors (3-phase) , i have a miniture 32 Amp breaker (Type D) but according to my calculation i require a 40 Amp breaker. This is how i calculated it: 8800/(400x1.732) = 12.7 Amps per phase ---> 12.7x3 = 38 Amps Was my...
    • ta-electrical
    • Thread
    • amp aus breaker calculation correct electricians' talk help phase require
    • Replies: 1
    • Forum: Australia
  18. S

    Require Solar energy measurement instruments

    Require some assistance regarding where i can purchase compact and highly efficient PV array tester
  19. L

    State three types of work which would require only a minor works certificate to be is

    State three types of work which would require only a minor works certificate to be issued? · Addition of extra socket · Addition of extra light fitting
    • lofty84
    • Thread
    • aus certificate electrical work electricians' talk minor require state three types work works
    • Replies: 9
    • Forum: Australia
  20. D

    Can I use SDS chisel bits on this drill that require roto stop?

    Hi I purchased this drill makita bhr241z a couple of months and would lke to use scutch type and challengling bits but not sure I can? Expert advice needed plaese!
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