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  1. H

    Max load on 850watt dimmer

    ? trying to work out max load on 800watt dimmer with 50watt low voltage down lights have to calculate the load by the amount of 60va transformers instead of the lamp watts not sure how to convert the amount of 60va transformers into max watts for the dimmer
  2. G

    Vehicle lift stops under load 2.2kw 1ph motor

    Hi- I am looking for some help/ advice please.I am a mech fitter- not and electrician- all advice gratefully received- I have a 3 ton, 2 post lift. It is electromechanical - screw type. No Hydraulics. It had a 3 phase motor fitted when I got it, but I only have 240V supply. I have fitted a...
  3. M

    Work load

    Just curious, how come there are so many forum members veiwing on a Monday morning? Are you at work or home. Is there enough work around at the moment? Me I start at 10.00am:confused:
  4. hollywoodsparky

    cables getting hot on half load

    I have a machine fed with singles in trunking, 3 phase, all test out ok, short run but cables are getting very warm, unit has a motor which also tests ok . Any ideas????
  5. carl9254

    A Load Question

    Hello, still learning about electricity. Got a question. For example, if i have an oven rated at 2kW max and a hob at 5.2kW max and i have a connection unit run off the ring supply, they are both connected into this connection unit, if the hob is on full and the oven is on low will the load of...
  6. P

    Split Load Board Certification Question

    Hi,How does everyone fill out the certs for a split load board to include the RCDS if issuing a DOMESTIC ELECTRICAL CERTIFICATE? How do you include the details of the split loads and the submain RCD characteristics into the boxes provided? Do you test RCD tripping times for each circuit even if...
  7. D

    Diversity and max load

    I done some calculations regarding diversity for max load and also determine my main switch rating for my board.... can someone tell me if i done my calculations right... i have trouble getting my head round this, got my ELECSA assessment coming up, want to make sure im not getting things...
  8. D

    Maximum Demand Load (Certs)

    Hi guys, ready for it yet another blonde moment from me, trying to get my head round my training. Regarding Maximum Demand load Amp/kA on the certificate If you have an existing installation you can measure the maximum demand load by by switching almost everything on the circuits and...
  9. A

    Heat pump - Locked rotary amp vs full load current

    Hi all I'm running a supply to a customers new pool and have the spec from the pool people. In the heat pump section it states: 20A main supply fuse, but then states that the LRA is 66Amps, and the SLA is 14.3 Amps. Am I right that the LRA (locked rotary amp) is the startup current, and that...
  10. I

    Split Load CU (Economy 7)

    Lads General question, I have Econ 7 and the current board is intergrated with day rate, Im considering upgrading my board for my NICEIC assesment. Can I get say a 14 way board and put 2 100A Main Swith and then split the board for day rate and night rate using RCBO's?? Or do you have...
  11. H

    3 Ph Load test in server room

    Hi guys I'm new to the forum, self employed installer. Recently done my 2391 but now have a customer who wants his server room load tested, 3 phase DB. The 2391 course didnt cover this obviously, and I have no experience of load / probe test kit. He is looking to log the load per phase, load on...
  12. Amp David

    Split load CU cable CSA

    In a regular single phase consumer unit, what CSA is the cabling that connects upp the RCDs to the nuetral bars and main switch?
  13. D

    18+ way split load metal clad consumer units?

    Hi does anyone know any 18+ way split load metal clad consumer units that have an insulated cover?
  14. M

    cable head fuses when doing load test

    hi looking for some help i am doing some load test in shops to see if i can fit some new heaters i am doing a load test at the main board with tong testers and getting my results ok but i dont now if my cable head fuse is 60 amp or 80 amp with out cutting the seal on the main fuse what...
  15. M

    different readings from ammeters same load

    Hi I wonder if I am posting in the correct forum ,if by chance I am not then would some- one please be kind and direct me to the correct forum my query being as follows I have 3 clip on current meters ( tong testers ) and when a load is measured I get different readings now all is...
  16. P

    NICEIC Certification Scheme maximum load on niceic installation certs

    can you help me, on niceic installation certs in the maximum demand load box, is that for the hole installation or just the modifide or new circuit. and is this measured with a clamp tester ? any help would be most welcome pete
  17. E

    UPS over load

    Hi every body, I face probelm during comissioning of one project , and I hope that I will find answer here. My system is like this: I have 200Kva UPS feeding 100Kva Step-Up Trnasformer. this step up tr feeding 3 s/dawn transformers step/up is y-delta connection from UPS DP I connect...
  18. S

    british gas home cover what a load of ****

    electrical home cover what a load of **** When tested and checked bounding was there just not visible, ring changed into radial left on 32 amp mcb and customer says it was a washing machine repair man checking electrics thinking of taking this public. these jokers taking business from us...
  19. S

    calculating total load on a consumer unit

    this probably is a daft question and the answer maybe staring me in the face, but im going to have to ask. ive got a 32A ring for kitchen, 32A ring for rest of flat, 45A mcb for shower, 16A for boiler, 6 A for lights, 16A for cooker = 147A i have a bs1361 100A main incoming fuse. Would i have...
  20. A

    neutral earth fault split load cu

    been working with another spark today on a job where the rcd keeps tripping intermittentley all legs clear >299Mohms. Lighting is on non rcd side all clear apart from 1 c/ct down to 0.49Mohms the other spark reckons this was taking the rcd out i disagreed and just wanted some1 else to tell me...

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