loads

  1. Mark42

    One three-phase breaker, supplying multiple single-phase loads. OK or not?

    I’m fitting a single-phase car lift in my own workshop. New three phase sub-main panel 10m from the lift, 16A TP MCB (with TP 30mA RCD upstream) feeding car lift control panel the in middle of the concrete floor, via existing underground (non-ducted) 4c SWA. Is it OK to mount the following on...
  2. polo1

    Wylex 80A 30ma rcd - and known issues?

    Hi folks, carrying out an EICR yesterday. Board is a split Wylex (main switch with the rcd covering half the board). All circuits are on the rcd side. Problem I encountered was trying to take 'no trip' Zs readings, the rcd always trips. The meter (1520) is definitely on the correct setting...
  3. C

    problems with lights dimming when loads applied (domestic)`

    just had western power out as im fed up of my lights flickering occasionally at night and dimming slightly during the day when we turn say a kettle on. they put a meter on the supply fuse I went in turned on a 2.2kw kettle and the fan oven result: 242-244v dropping to 232v. this seems a bit...
  4. S

    Unbalanced 3 Phase Loads

    Had an enquiry from a customer who recently moved premises to a similar sized building 100 meters from the old one. Their electricity bills trebled immediately. I have data logged 4 DBs for 2 weeks and nothing sticks out other than wildly unbalanced loads on 3 phase DBs i.e. L1=38A L2=18A L3=8A...
  5. 1Justin

    Would you say I could use B type breaker here?

    I have a big place to work on here. Have come across a long lighting circuit where I need to repair/extend damaged end of the circuit. There are 8 PL type Florescent loads distributed evenly. Due to the (measured & validated) R1+R2, since the circuit is probably ~>60M long in 1.5 T&E, I need...
  6. shanky887614

    the usual, loads of crap in your way

    had a breaker that had tripped today and had to crawl all over this then the day was topped off by crawling all afternoon in a loft
  7. G

    Balancing a 3 phase load

    I have a question on balancing a load. We have 3 cabins with the following loads: 10kW, 8kW and 3kW, supplied by a three phase supply. Each cabin will have it's own supply. Is there a simple way of balancing these loads, or is it possible?
  8. F

    work related apps

    anyone discovered any decent work related apps recently
  9. A

    diversity- commercial kitchen

    I'm curious as to what diversity any of you may apply to a commercial kitchen. All electrical appliances. So far I've added everything up and total max demand before diversity is 220amps. I've applied 70% overall at the mo but just wondered what others would think.
  10. the pict

    unequall loads

    I have just provided a new 3 phase supply to a 12Kw twin tank fryer 6Kw per tank over 3 elements per tank, wired in 3 phase wye, however L2 draws more current than the other 2,wired in 16mm tails from henlys to a 3 phase MCB @ 32A B curve then in HO7RN-F 10mm 5 core to the fryer,, loads are...
  11. R

    Loads of electrical items cable spurs fp200

    Selling load of electrical items inbox me flex armoured cable 16mm 3core twin earth 1.5 2.5 6.0 3 core and earth fp200 3 core & 4 core 1.5 2.5 metal clad 13amp spurs x10 Armoured jointing kits thanks for looking
    • Reece1202
    • Thread
    • cable electric electrical fp200 items loads spurs
    • Replies: 1
    • Forum: For Sale and Wanted Forum
  12. M

    For Sale: loads of stuff on Ebay inc: Megger 1552 tester etc

    Hi Lads, I'm having a clear out as missus wants the space, and selling off a Megger 1552 plus other testing equipment, parts and tools on Ebay, Link below plus see my other items: megger 1552 | eBay Based in Preston, items are collect in person only. Cheers Mark
  13. S

    Napit unused forms - loads.

    *** OBVIOUSLY BEFORE I SELL THESE TO SOMONE, YOU'll NEED TO SHOW YOU ARE A MEMBER OF NAPIT! *** "NAPIT Periodic Report on an existing electrical installation" code NA/PIR/001 (V1) - runs from serial number 55657 to 55675 (19 sets left). Obviously not for use on a domestic but still useful to...
    • SPARTYKUS
    • Thread
    • electrical forms installation loads napit obviously these unused
    • Replies: 5
    • Forum: For Sale and Wanted Forum
  14. J

    canalis busbar trunking plugs and flying lead lighting need loads..

    Hi, We are looking for plugs to use with a Schneider Canalis KB2 lighting distribution rail. We realise this rail is obsolete but are hoping we can find a stock of these plugs. We do not have the part number. if you have some please contact me on [[email protected]] . i can then...
    • John Bunning
    • Thread
    • attach busbar helvetica lead lighting loads please plugs trunking
    • Replies: 3
    • Forum: For Sale and Wanted Forum
  15. M

    MERLIN GERIN Multi 9 4P RCD RCCB 100A 300mA

    Does anyone know if there is a common problem with the Merlin Multi 9 RCCB 4 pole 100Amp 300mA, not tripping as we have replaced an existing unit with a new one but the issue is the same, Many Thanks Mark
    • mtraczykowski
    • Thread
    • loads merlin multi rccb rcd terminals testing tests
    • Replies: 14
    • Forum: UK Electrical Forum
  16. B

    Using rotary isolators for switching loads on and off?

    Hi Can you use rotary isolators to switch resistive loads on and off on a regular basis (talking 18KW load here) I personally thought not, that it should be controlled through a contactor but I have seen another installation that is using isolators thx Bigfoots
    • bigfoots
    • Thread
    • different isolator isolators loads rating rotary switch switching using
    • Replies: 2
    • Forum: UK Electrical Forum
  17. Midwest

    RCBO X5 trip time out, caused by washing machine

    I've used a particular socket in my kitchen to carry out monthly calibration checks (ZS & RCD) on my MFT, for several months with no issues. Last week I carried out my tests on my MFT and the x5 RCD test timed out at 40ms. Thinking I had a faulty RCBO, I replaced today, but the fault remained...
  18. dlt27

    RCD Tripping.....

    Can anybody help... Went to a job Friday where apparently RCD is coming out once every couple of nights. The rcd covers 4 circuits which are sockets, sockets, heating and outdoor shed. I have carried out a blanket test and I am getting a reading of about 20M This is with loads conncted apart...
  19. D

    Omission of overload protection for fixed loads.

    Been reading various threads with regards to having an mcb that exceeds the cable rating thus only providing short circuit protection, what surprises me is the negative responses that are posted if it is ever suggested. Now lets try put a translation on the regulation specifically 433-3-1 (ii)...
  20. C

    RCBO Trip times very strange.

    Hi when testing an rcbo trip times with 2 vapour proof fittings switched on the times were 378 on times 1 and 154 on times 5 but when i test the rcbo with the vapour proof fittings switched off the times are 21 times 1 and 19 times 5 has anyone had this before. i am using a calibrated robin...
    • cdmh electrical
    • Thread
    • connected fittings loads rcbo strange times trip
    • Replies: 8
    • Forum: UK Electrical Forum
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