center

  1. James the Spark1976

    Commercial Call center sockets

    So I have had an enquiry about a large open plan call center with around 150 desks. Rented office space, each desk has at least 1 pc with 2 monitors. There is also all the other IT equipment you would expect in a big office. The office sockets are fed from 2 x bus bar trunking runs under the...
  2. B

    Double Switch Help

    Hi Guys, Mind has drawn a complete blank I've been out of electrics for quite a while now and i'm going to be putting some Ceiling Downlights in my bedroom and was just wondering on the wiring; Would the attached diagram be correct? I have a ceiling rose as my main light, So if I was to loop...
  3. i=p/u

    Happy new year

    Wishing all sparks a happy new year.
  4. H

    Wireless Programmer Advice

    My mates just been on, his combi boiler isn't working with the timer so he's asked me to install a separate unit. First of all is this even possible, and second can anyone recommend a budget programmer that would do it. Think it would need to be wireless programmer unit with a receiver at the...
  5. D

    Installing 3 Phase supply to new 5/6 Bed house

    Been asked by a customer to quote for a 3 phase 100amp supply to his new build 5/6 bedroom house. His meter by the front gates 135-150m from house. Cable will be buried in ducts, i've done some working out myself (long time since i've had to do this). Using a 70 degree thermosetting cable its...
  6. M

    110V System in a worshop

    Hi All I am designing a 110v system for a local workshop. They have speced 20 outlets not all to used at one time. Id think realistacally 40% would be the max. My question is i have been speked at 15KVA tran with 2 80amp outlets and they say to daisychain 10 sockets from each outlet. They cant...
  7. J

    "Voltage Drop" Please help!

    Hi folks Iknow this topic has been beaten to death on this forum but after reading some of the posts and speaking to some of my co workers I am still a littleconfused, I am aware there is several ways of calculating voltage drop but amstill unsure of when to use the correction factor of 1.2 and...
  8. J

    old city and guilds help

    hi im trying to find the name of the centre in the north east of england where I passed my electrical city and guilds, Im applying for a copy of my certificate but can't remember the name of the centre or the examining board. Its a long shot but did anyone here study at a government training...
  9. G

    brand new rcbos

    got some brand new rcbos that im looking to sell if anyone is interested 2 x crabtree starbreaker 61/c14030 40A 1 x mem eaton emch120r30c 20A 5 x dorman smith kr1pc3230 32A 1 x dorman smith kr1pc1030 10A all new and boxed open to sensible offers cheers
  10. O

    Domestic 2 way and intermediate with a dimmer.

    Hi all, Putting in a a hallway lighting circuit on a new dwelling controlled from 4 points, client wants a dimmer but is happy to incorporate just a 2 way dimmer to save getting involved in master and slave units. Just want to check before the 1st fix that the dimmer could be either the 1st or...
  11. S

    power probe 3 for sale

    this is brand new bought last week of snap on for £157 not used once got laid of from work and need the cash so open to offers Power Probe III PP319FTC Kit in Case With the press of a switch you'll have an instant hot lead or ground lead. Use the hot lead and ground lead simultaneously to...
  12. S

    power probe 3 for sale

    this is brand new bought last week of snap on for £157 not used once got laid of from work and need the cash so open to offers Power Probe III PP319FTC Kit in Case With the press of a switch you'll have an instant hot lead or ground lead. Use the hot lead and ground lead simultaneously to...
  13. P

    polarity testing

    hi guys, when testing to confirm polarity of swa going from house to outbuilding. a. why is it necessary b. why is it carried out before the installation is energised
  14. L

    Help with UF heating r.e pump logic modules

    Please don't move this thread to CH ! Fellas Got a call out to Electrical fault on a UF heating system today No voltage to the pump, when I traced the fault it seemed the 230 supply went from the control center to a PCB marked "rx 58 pump logic module". Various conductors leave the module...
  15. L

    Help with UF heating r.e pump logic modules

    Fellas Got a call out to Electrical fault on a YF heating system today No voltage to the pump, when I traced the fault it seemed the 230 supply went from the control center to a PCB marked "rx 58 pump logic module". Various conductors leave the module but two go via relay then to the High...
  16. W

    Wylex RCBOS All Brand New

    1 x 40 amp - C type6 x 32 amp - B type1 x 16 amp - B type 4 x 6 amp - B type NHSXBS £120 the Lot including Postage
  17. mickys86

    110v tranny

    Bosch drill stopped working Friday afternoon, one min it was fine the next it wasn't. I've noticed recently that the transformer has been getting really hot when plugged in, even when nothing is plugged into the transformer. So I take the top off and check the voltage going in.... 240 somat...
  18. L

    PV circuit Distribution or Final

    Does the dedicated circuit for a PV system count as a Distribution or a Final circuit? Looking at the spec for the inverter most disconnect times are specified as 5 secs which implies a distribution circuit. Clear Sky Solar Ltd
  19. sythai

    FOR SALE : 2007 Astravan Sportive

    Astra Van 2007 Sportive 1.3 cdti Silver 65,000 miles Very economical 50-60mpg FSH - fully stamped MOT + service next week Factory fitted roof rack Full metal bulkhead Rear security grill Rear window blanked out in silver Brought direct from Vauxhall main dealer at 28,000, they used it as a...
  20. C

    Not Cheating, honest

    Ok, here it is. Im currently working on my collage project and Im a little bit stuck with cable sizing selection of protective device on a 3 phase system. Im not looking for answers here, so im not gonna post any numbers, just a push back on track. Does anyone know, off hand, the equations...
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