commercial

  1. James.B

    Looking to install a 3ph supply for 2 x 6kW fryer in a commercial kitchen.

    Hi everyone, I've looked at a job to install a circuit for a 2x 6kW fryer in a commercial kitchen and would really appreciate a second opinion on my calcs, attached in photos. Many thanks in advance.
  2. T

    Troubleshooting on a star delta starter

    I've got a call about a pump that is not working. It was a 30 kw motor with a star delta starter. The motor start but before it changes to delta it trips. And it look like the motor is single phasing. So i disconnect both cables at the motor and start it again. As soon as the delta contactor...
  3. M

    Capacitor Issues

    I have a Hayward pool pump where the start cap is 161-193 uf. How can you have a range of capacitance. Hayward is an american company. so maybe it can run on 110v or 240v. (just a guess). The other issue is ceiling fan caps, now these are start/run caps and I know from past experience that you...
  4. P

    Commercial EICR typical rates

    Just wondering what the approximate cost would be for getting a EICR done on a 3-phase setup? Small building, around 15 circuits but most single phase finals, only 3 I think are 3-phase loads.
  5. D

    Whats causing a voltage increase on a water pump?

    Hello. I'm doing a favour for a farm friend, they have a water pump down a bore hole thats been slowing down recently. The single phase 0.55KW motor is situated 40m down the well and the controls are at the distribution boards. The voltage going to the single phase motor is reading L-E 247 &...
  6. bigspark17

    Help needed with commercial kitchen food order printer

    problem is this printer has the plug on the end As seen in pic. Has anyone been able to extend this cable using cat5e or use an adaptor of some kind. I have aspare cat5e nearby i can use, otherwise running a wire will be a nightmare in a newly refurbished property. Ps the other end of the lead...
  7. J

    EICR on commercial unit

    Hi all Doing an EICR on a commercial unit. Last time done was 2002. No rcd protection whatsoever and plastic board. All circuitry testing out fine, complete ring, c.p.c's present at all lighting points and other appliances. One thing am unsure on is how to code lack of rcd protection on...
  8. P

    Is there any regulations for basket?

    Hello people, I'm writing up my NVQ portfolio and have covered the cables required and all the containment except for basket. I need to refer to BS7671 but cannot find a regulation for basket... any help would be appreciated. Thanks
  9. M

    Convert 3 phase into 3 single phases

    Hi there, I have currently started working on a farm and they are having a new 100a 3 phase supply installed. This is being terminated in an external enclosure. They then want to carry this 3 phase 150 meters to a barn and at this point split it into 3 single phase supplies. Is this even...
  10. P

    240V SP Ind Fan Motor wiring help

    Hi guys, struggling with a problem wondered if anyone can help. Had 2 A/C units failed on me, spare parts not available til end of August... :-( The faults were caused by the fan units which vapourised tracks on the PCB, great design , not. I can repair the PCBs but the fans are dual fans...
  11. B

    Price per metre for 100mm tray

    I have to price a job, first large scale job and looking for a rough price per metre you would charge to install, didn't know if there was a standard/average price please I know for sockets and lighting but this is new to price Thanks in advance
  12. B

    Mains supply for light industrial units.

    Hi guys. I’ve just take over a job that had been already started. It’s 7 light industrial units that have supplies already wired underground in 25mm 4 core. The client wants 7 meters at the mains which is all well and good but the question is.... The previous spark said he was going to put a...
  13. James

    Lenze lecom a/b

    Lenze lecom a/b For programming 8200 series drives Anyone got one of these adapters? I need one ASAP and they are on 10day lead time from Germany. I am happy to purchase if it is surplus to your requirements or If you are kind enough to lend me one for a few days, I would return it with a £50...
  14. robertl

    3 phase 2 speed motor from single phase

    Hello everyone I have just bought a new lathe, (used) its on its way to me from other end of the country now. I have only just realised i may have an issue. The machine is 3 phase and i was intending to go down the VFD route but because its a dual speed motor im not sure i can. See attached...
  15. V

    three phase board separation

    hello everyone, I have a little problem. I've got a three phase board, it has the three phase sauna, one phase lighting and sockets connected to it. The problem i am facing right now. This is a comercial unit. So the problem is that the sauna makes the RCD trip every so often. And the board...
  16. DannyJS

    Job interview for prison spark. Advice please?

    Morning, I have an interview for a local prison, position is maintenance spark (mate/supporting the electrician). Anyone on here worked on electrics in a prison before? I am after any last minute advice on what types of electrics are involved? Any nuggets of knowledge that would help me...
  17. G

    Phase converter

    Hi needing to purchase a single phase to three phase converter to run this motor what would you recommend? Thankyou
  18. Zdb

    Computer earth leakage value (mA)

    I know every computer/equipment type will have a slighty different earth leakage stated by the manufacturer, however I was wondering what people use as a "rule of thumb" value when designing ring final circuits in offices intended to be used for computers. I was thinking 1.5mA per computer inc...
  19. Johnsty32

    I Need Work Electrician

    Hi everyone I’m looking for work opportunities I’m from Newcastle upon Tyne but don’t mind working away from home . I also have Dsb clearance to work in Norway thanks ??
  20. A

    3 phase gen set neutral/earth

    Hi guys/gals I have been asked to install some 230v sockets and lights in an old refrigerated trailer, that would be used as a store on a quarry site. The trailer has a 3 phase generator built on to the side to originaly work the refrigeration unit, but as everything involved with the...
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