commercial | Page 10

commercial

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  1. 2

    Welder - what sort of amp input it will need at 240v

    I recently bought a welder (picture attached) I was wondering what sort of amp input it will need at 240v
  2. 2

    Wiring up my shed 240v

    I am going to get an electrician to hook the wire up to my fuse box but I was wondering what cable I will need. I am planning on running the cable myself to be hooked up later I am after a cable to withstand 60 amps. What cable will I need
  3. T

    Need to extend a RFC - Zs not good enough

    Just after some thoughts on this. I need to extend a RFC, but the Zs isn't good enough to comply (it doesn't comply currently, but it becomes my problem when I touch it). It's currently about 0.70 ohms - what I need to extend it by will be minimal, maybe taking it up to 0.75 ohms. It's protected...
  4. GBDamo

    63p + VAT Per item

    PA testing;- Customer:- "can you quote these sites for PA testing" Me:- "Sure it'll be £1.50 + VAT Per item" Customer:- "We've been quoted 63p +VAT Per item, can youatch them" Me:- "No" Customer:- "Why" Me:- "We intend doing the testing" Sick of them, and hate PA testing but we need...
  5. A

    Fridge tripping

    Hi My name is Allen Brauteseth from Cape Town South Africa. I am a Qualified electrician and am sitting with a problem being I have a commercial fridge for cold drinks that trips out the earth leakage after running for 10 minutes please could someone help me as the supplier says there isn't...
  6. W

    Have I got a big problem!?

    Hi, i'm currently working on a project where 10 flats are being built on one side of an old silk mill. We are having a new cable put in and the origin upgraded etc. This type of work has to be done by NERS registered electricians so an outside company recommended by the DNO came yesterday and...
  7. Midwest

    Supply to 3 phase DB tripped

    As above, place I work at as maintenance, had supply tripped off at the weekend. Not some stuff I’m fully conversant with, so just seeking views here. 3 phase DB supplying power and lighting for rooms, using RCBO’s. Panel has this as main switch; The supply panel is this; From what I can...
  8. J

    TT supply with TNS sub mains

    Would like your opinions on the following setup. 300A 3 phase TT incoming supply feeding 15 units with 50A TNS obviously some link somewhere between Neutral and earth but haven't found it yet. I would think that each unit should be TT not TNS thoughts please
  9. L

    Connecting 2 12v fans

    Hello, I need some help with this: I have a Xbox one S where I connected 2 Fans (there is usually just 1 ) parallel to the 12v sourve from the motherboard. Fan 1 has 22mA and Fan 2 has 29mA. My Question now is, if there is any risk to burn something. I dont know how much amp is delivered by...
  10. GBDamo

    Intermittent fault finding.

    Was called to a commercial lighting issue on Friday where the circuit had tripped, RCBO protected. On arrival reset the RCBO and all held, three lights weren't working, two were lamps and one had a black scorched ballast, replaced this and all works. The circuit has eight lights, two PIRs a...
  11. T

    Voltage dropped

    So after what I thought was a productive day yesterday replacing old lights with LED panels, 3 of them weren't working. Turns out the voltage between line and neutral was about 210 at each of the 3 points, 245 between line and cpc. Voltage was 245 between line and neutral at all other points on...

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