load

  1. Davisonp

    Voltage Drop When Load Is Applied Question

    Hi, I came across a situation recently while investigating a problem where measuring voltage at a set of 4 sockets read 243 Volts with no load, and when a 21 Amp load is applied, the voltage then reads 230 Volts. Is it normal to have such a large voltage drop under load? Or does it imply the...
  2. H

    UPS connection common neutral supply & load

    Hi Maybe im over thinking this but need to connect a UPS system to a control panel, the problem is the ccts i want to connect to the UPS are split & all the neutrals are all connected to a single busbar connection unit at the moment which is all normal, but i need to connect a UPS to power...
    • howsitgoing
    • Thread
    • common connection load neutral supply ups
    • Replies: 11
    • Forum: UK Electrical Forum
  3. HappyHippyDad

    L-N IR results indicating fault or load left on?

    I have had to fault find on a very old, big house (with a bad damp problem) as the MCB feeding the kitchen sockets is tripping. There is no RCD. It is a ring circuit. The IR results L-E are 0.003MΩ. L-N IR results indicated something left plugged in (really sorry but I can't find the note I...
  4. A

    Demand load

    Could any one please tell me what I'm missing and how did they calculate that ....
  5. M

    DICR - Split load boards in HMOs

    How would you code for circuits not protected by RCD in HMOs, the circuits being, lighting, water heaters and storage heating? I'm thinking code 3, my main concern is the switch drops having no protection, just wondered if others agree.
  6. L

    200A load break switch/switch disconnector.

    I have a job on ATM where the client has been done over by the builder for 65K leaving the job which is 13 new build flats near completion but the client is running out of dollar pretty quick. I'm doing my best to help out by finishing the job but due to the concerns over money I'm getting paid...
    • Leesparkykent
    • Thread
    • break cheaper contactum eaton load proteus switch
    • Replies: 13
    • Forum: UK Electrical Forum
  7. A

    Connecting load to a live FSU - Legal?

    I work with fire alarm panels and have recently come across a situation where my customer could not isolate the FSU recently installed for me as the FSU was fed from a breaker than would have caused major disruption if knocked off. Now when I did my City&guilds 2330 & BS7671 they taught me no...
  8. P

    Orona load ropes have failed after 2-3 years - anyone faced the same issue??

    Hi all, just trying to find out whether anyone has come across a similar issue with Orona lifts? We have been notified that ropes have failed as a result of unequal spring tension in the ropes. Could this be manutacturer's fault at all? thanks for any advice.
    • poorleaseholder
    • Thread
    • after anyone calibri failed issue led load years
    • Replies: 3
    • Forum: The Welcome Forum
  9. C

    Split load RCD woes

    The usual C.U. change problem. All circuits working except one (Ostensibly a ring circuit, once upon a time. It 'end-to-end's at the board) which seems to have a neutral to earth fault. I was methodical so I don't believe any neutral conductors were misplaced, but even putting the two...
    • chronyx
    • Thread
    • circuit conductors fault load neutral rcd split
    • Replies: 34
    • Forum: UK Electrical Forum
  10. E

    EICR code - potential load on lighting circuit more than MCB rating

    I'm writing up an EICR. On one of the lighting circuits the potential load is theoretically about 1300W on a 5A BS3871 breaker. In reality, the arrangement has been in place for at least 8 years there are no signs of thermal damage, it is difficult to find lamps these days that would max out all...
  11. L

    flush mounted split load fuse consumer unit

    can anyone recommend a flush mounted split load fuse consumer unit for amendment 3
    • lako
    • Thread
    • consumer consumer unit flush fuse load mounted split unit
    • Replies: 1
    • Forum: UK Electrical Forum
  12. K

    Garage power (high load)

    Hi All Any other thoughts, ideas/whys of legally doing it. I have client that wants to rewire his large/double garage as he wants to put his kilm and potters wheel in it plus run whats there and power for a new electric garage door (13a plugged one). currently theres lights, fridge/freezer...
  13. L

    RCD tripping under load

    Installing a split RCD board in a new barn conversion build, IR tests come out clear, ring continuity tests fine, but the RCD will trip out when something is plugged into the circuit, happens on both sockets that are currently running off that side of the RCD but when I swapped one over to the...
    • Liam_Spa
    • Thread
    • circuits fault load neutrals rcd rcd tripping right tests tripping under
    • Replies: 17
    • Forum: UK Electrical Forum
  14. S

    Hows work load

    How you finding things a the minute work wise? Busy? Just ticking over here, lost out on 3 quotes this week for CU changes to the local cheapo doing them for £200 all in. Looking forward to the Xmas break mind you :)
    • stan794
    • Thread
    • booked doing electrical work load months weeks work
    • Replies: 30
    • Forum: Electrician Talk Forum
  15. N

    RCD Tripping under No Load!!

    Hi Folks, I'm new to this forum. Got a bit of a head scratcher for you all. I have recently installed a new dual rcd consumer unit in a retirement home apartment It is about the 20th apartment we have done with no previous problems whatsoever. On energizing the consumer unit I switched...
    • nate1880
    • Thread
    • circuit consumer lighting load rcd rcd tripping switch tripping under
    • Replies: 7
    • Forum: UK Electrical Forum
  16. J

    D.F Load of Equipment

    I have seen an excel sheet in calculator to calculate the size of transformer. There are option to put the vales of Kw,PF,Qty and Equipment D.F. I could not understand what is D.F. What is the equation to calculate the D.F and equation to calculate the total load D.F?
  17. K

    Earth leakage current issue (no load connected)

    I've come across a problem today that has completely stumped me. I used my clamp meter on the main protective conductor and found there was over 4A flowing. Checking the line and neutral conductors, they each had exactly 2A. Obviously these numbers do not add up as if there was leakage to earth...
  18. P

    Monitors providing insufficient load for insulation test

    We have hit a snag with PAT testing of some computer monitors in our school (class I). We have a basic battery powered Seamark PrimeTest 50 PAT tester. Earth test passes fine, but then the insulation test gets stuck on "Check Connections", which means the monitor is not providing sufficient...
  19. C

    RCD total load vs MCBs

    Hi all again. Enough with helping my friend and back to the main thing, which is back to studying. I am working on my final assessments (practice for my final L3 exam). Big 2 story house with the following requirements (protected devices given accordingly and installation method C, clip...
    • Carlos Arruda
    • Thread
    • circuit floor house load mcbs rcd total
    • Replies: 15
    • Forum: UK Electrical Forum
  20. NDG Elecs

    Crabtree Starbreaker configuration split load.

    Hi Folks, Just a quickie, that you may know instantly. Are split load 16th edition 5+5 Starbreaker boards changeable to 4+6. Need an extra way on the RCD side if possible and not too familiar with these boards. They are the plug-in type breakers. Had a look on electrium but no joy thus far...
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