commercial

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  1. S

    UK Initial Verification on large commercial sites

    I'm trying to gauge what the common industry practice is relating to Initial Verification on large commercial jobs. I've been working as a tester for the last few years in the South East, and when I test an installation, I'm expected to correct any minor faults, which I do. As any tester will...
    • SAL
    • Thread
    • commercial initial large sites testing and inspection verification
    • Replies: 15
    • Forum: UK Electrical Forum
  2. A

    Metal CU in a commercial setting

    Hi, Just wondering what people interpretations of the regs are regarding metal CU's in a commercial setting. I've seen some people code them C3 on an EICR and others say that the Metal CU's are just for domestic settings. I've read the regs and I think they could be read either way. Anyone any...
  3. S

    Electrical installations in commercial premises

    Hi everyone, I know that part P apply to dwellings and its associated building, and under that there are some electrical work that are notifiable. But what about commercial premises eg restaurants, schools, pubs.. What electrical regulations applies to it, is there any alternative similar to...
  4. 0

    Commercial garage design

    I'm looking at fitting a commercial garage out. I plan to put a 4 pole 300MA S TYPE rcd as main switch on a 12 way 3 phase board providing I can get the Ra down low enough, should be fine though, otherwise it'll be a 100ma s type. Socket circuits and maybe lighting circuits will go on 30ma DP...
  5. C

    Commercial building MK metal clad sockets

    Hey guys, So I have a community centre I do some work for, they are looking to replace all the sockets and switches, which is a load of them. They are currently metal sockets and switches, because its an old building most of the sockets are in the large skirting board, because of this I...
  6. M

    Adding bypass switch to commercial parking lot lighting

    Hello, I work in a facility with a lot of 3-phase parking lot lights. These lights are controlled by a number of photocells that close lighting contactors near the service panel. My problem is that these photocells are very difficult to access due to their location, so covering the photo cells...
  7. N

    Commercial installs are not notifiable

    So I've been doing domestic for years, and thought about upgrading with napit to commercial installs. Apparently commercial work is not notifiable, only need to register for eicrs (which don't even need registering with a scheme anyway) So, if I changed a CU or installed a circuit, 3 phase...
  8. J

    Can I carry out commercial work?

    Hi everyone, A quick background to me and my question. I have been working for a commercial catering equipment engineering company for about 10 years and working mostly repairing appliances but also fitting new equipment in commercial premises, Sometimes running new circuits from the CU for new...
  9. M

    Help with installing a Timer on a Power Supply.

    Dear Friendly Electricians, I am an IT specialist. I am currently in a sticky situation. The company I'm working with is a digital advertising company. We have LCD screens to display ads. They asked me to install a timer on the screens. So they turn off during the night when the mall is closed...
  10. GBDamo

    TT commercial unit upfront RCD

    Have been doing some small jobs on a commercial unit converted for storage, changing lights and broken sockets and the like. Units look to be c.20 years old. The interesting thing is the unit is Three Phase TT, the rod being directly beneath the DB and incomer all in a small cupboard. There...
  11. Darkwood

    HMO car charging ports request.

    I will be upfront and honest I never really got involved or know too much about this so a few queries... -Do I need any paperwork, additional recognition to install several new charging points at an HMO -Are there still any grants available to the landlord to counter the costs -If I need to...
  12. K

    Parallel sub mains

    I currently have a shop which has 3 phase 6mm cable running to it but the shop is only allowed single phase, currently renovating and they need more than a 32a supply. Can I parallel 2 of the 6mm and upgrade the quicklag breaker to a 50a at the MSB and make it a 50a main switch at the shops sub...
    • Kilogram
    • Thread
    • ausie elec commercial mains parallel submain
    • Replies: 1
    • Forum: Australia
  13. Rockingit

    Very small footprint, 3-4kva 1 or 3ph UPS - recommendations?

    Need to find a v small, hard wired, wall mounted UPS to provide 60mins for fire alarm, emergency lights and fire suppressant (mist) in a BMO to satisfy the requirements of section 560. Phone calls and catalogues so far have only found me massive plant room size, I need to fit this in a...
  14. N

    Fire Alarm- Earth Fault on Loop (XP95)

    Hello, Would welcome any advice- We have an earth fault to a fire alarm loop, everything connected is XP95 and there are isolators in many bases and call points.. Is there a hints/tips way to find this, without having to gain access everywhere. Would splitting the loop, powering the half that...
  15. D

    UK BS88 fuse board on a new installations

    I was wondering, are BS88 fuse boards still used on some new installations especially industrial and even commercial. And if so would that be ok with the regulations or not because its not retrospective. I know they are quite outdated and its hard to find a electrical wholesaler selling BS88...
    • David345
    • Thread
    • 18th allowed board bs88 bs88 fuse commercial commercial 3 phase consumer board distribution board fuse fuse board fuseboard fuses illegal industrial installations legal mcb new not allowed regulations retrospective
    • Replies: 17
    • Forum: UK Electrical Forum
  16. h.abrar94

    How to calculate the resistance of steel armour under fault conditions 70 oC for CSA 95mm2

    Hi All, hope your all well. I was hoping if I can please get some advice in regards to SWA. In Particular using SWA as CPC. Cable size 95mm2 I have a table for SWA which shows various information, in the last two columns it shows the "resistance of steel armour under fault conditions at 70...
  17. midsomerdave

    Motor wiring. 1 or 3 phase?

    Hello all. I have a problem that I'm sure someone can help with. The electric motor I have (pics attached) has no ratings plate. There are no supply wires shown, just the internal connection box wiring. The picture of the wiring diagram looks to be single phase but the box wiring has me...
  18. dokkan1080

    Rcbos in commercial installations

    Just a quick question Do rcbos need to be used on lighting circuits in a commercial setting? Eg on a new build school/hospital/what ever Or on a new circuit install on a school/hospital/ what ever commercial building?
  19. spud1

    What are the requirements for interfacing a new gas supply with a commercial buildings fire alarm system ?

    Hi Im working in a staffed residential home (for severe learning difficulties/disabilities residents) they have a new onsite tanked gas supply being installed to supply two domestic sized gas boilers in seperate locations, which will replace the existing big oil fired boiler. I need to clarify...
    • spud1
    • Thread
    • alarm buildings commercial fire fire alarm gas new requirements supply system
    • Replies: 4
    • Forum: UK Electrical Forum
  20. R

    Diversity Calc Commercial Dishwasher 6.5kW single element

    It is a 6.5kW thermostatically controlled water heater if you ignore the rest of the gubbins. So that would be a Purpose #6 for diversity ie: None allowed. = 28A. But you could treat if like a cooker too. Purpose #3 ie: 10A + 30% FL current over the 10A. = 15.4A What do you think? Thanks

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