distribution

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  1. Brownie91

    5.0 Distribution circuit section, N/A on paperwork?

    Hi all, This may be a silly question but here goes. When completing an inspection report for a small domestic installation (EICR not install). Would you mark all tick boxes under 5.0 Distribution circuits as N/A seeing at this is for a circuit/wiring feeding another distribution board? Thanks
  2. T

    Powering an AC distribution center/panel from two sources

    I have a small camper. I'd like the option to power the distribution center/panel from either shore power or by the AC output from a Jackery solar generator. I'm thinking to have a two-position changeover switch with one input and two outputs. Input would be from shore power as it comes...
  3. D

    Distribution circuits in apartment block

    Hi all, First time poster here, albeit long time lurker. I could do with some opinions on running distribution circuits around and through the building voids of an apartment block. The project is an old police station being converted into flats. The bloke from the private DNO approved company...
  4. W

    What size SWA cable and what Distribution boards required to shed and garden office.

    Want to install a garden shed with Tumble Dryer and separate garden office building. I have run duct from side of house to where garden shed is going to be, then run another duct to where garden office is going to be. I am planning of having the office heated by electric most likely a plinth...
    • Wilf999
    • Thread
    • boards cable distribution garden garden office office required shed size swa
    • Replies: 14
    • Forum: DIY Electrical Advice
  5. timhoward

    Distribution circuits in Section 705 location, RCD needed?

    I just want to check how I should be interpreting section 705. 705.411.1 states required disconnection devices, the first two indents covering final circuits and sockets, requiring 30ma and 100ma RCD's depending on rating of socket. Indent 3 says " all other circuits" need 300ma RCD. Does that...
  6. B

    UK RCD Protecting Distribution Cables on a TT on Industrial Estate

    Hi All, I'm looking to pick the brains of experienced engineers who have dealt with TT more than I have please. We have an installation on a site which may or may not be unique. There are four 12m x 12m units inline with each other, all connected as one building, with the plan to build a...
  7. S

    3 Phase Distribution Board Dilema

    Hello All So I'm not long out of my college days and unfortunately I didn't have a lot of exposure to three phase and commercial wiring systems. I have a three phase switch fuse Isolator rated at 200Amp supplied by the landlord. I need to split this across two Proteus distribution boards, the...
  8. mattg4321

    Dual Metered Distribution Board

    Been asked to quote for a job where the small power and lighting needs separate metering. I’ve not come across this before as I usually only do small commercial, which I believe is exempt from this requirement. Anyone know the actual requirements as per regulations? Anyway I digress. I...
  9. G

    Recommendation request for Type B distribution board

    As a retired electrician, I need to specify a new type B board for a village church. Principal load is heating. Ipfc phase to phase is 1.1kA. Requirements: 23 final circuits, so don't want to exceed an 8 way board - pref no higher than about 625mm. SPD therefore not to steal 3 MCB positions...
  10. Y

    Accessories inside a distribution board.

    Is it against regs to place a Quinetic Wireless Switch controller directly inside a distribution board?
  11. MJS123

    Single Phase Transfer Switch in 3ph Distribution

    When there exists a single-phase transfer switch within a 3-phase distribution system, is it necessary for both feeds to the transfer switch to be connected to the same phase on the two sources? Take for example the image below, note that the transfer switches are connected to the power sources...
  12. timhoward

    10 sq mm T+E distribution circuit supplying CU

    Can someone sanity check my thinking please.... An 80 amp PME service head, tails to meter, 25 sq mm tails into an enclosed fused isolator with 60 amp fuse in it. 16 sq mm from cut out into a MET. Gas and Water bonding connected to the MET. 16 sq mm main earth from MET to the fused isolator...
  13. mak

    UK Do you keep cable slack in the distribution board or hide it in the trunking? And why?

    What’s the easiest and safest way.
    • mak
    • Thread
    • board cable distribution distribution board trunking
    • Replies: 8
    • Forum: UK Electrical Forum
  14. W

    Does a 32amp distribution circuit wired in SWA to a sub board need RCD protection ?

    For context i am in my 2nd year in college and my head is going round in circles a question in my project for which i need to select the right protective devices for : A 32A distribution circuit from the main board to supply summerhouse will have a four-way SP-N distribution board fitted...
  15. S

    Multiple Domestic Distribution Units - RCD Topology

    Cascaded Distribution Units. Given how cheap populated distribution boards are; i've started to use them for almost every major junction in my home: Domestic Main Distribution Unit >10mm swa > Garage Distribution Unit > 6mm swa >Spa Distribution Unit...
  16. W

    Do Distribution circuits require RCD protection?

    I'm doing a college design project and need to choose a suitable range of circuit protective devices for the whole contact. I've chosen and already done all the protective devices for all my final circuits but was curious if the distribution circuits need RCD protection aswell. The project...
  17. S

    Recommend me a Type B (3 Phase) Distribution Board

    Need to source Type B 3-phase distribution & 3P MCBs for EVSE, 1P RCBOs etc. so my sparky can install. A 6-way 3P board will suffice. Wondering what the general concensus is. Say, Contactum at the cheaper end vs Schneider Acti9 at the upper end. Drawn towards the Schneider as super neat...
  18. R

    Split Metered Landlord Distribution Board

    Hi all, existing office building that is being refurbished. Existing DBs (single meter for small power & lighting) need to be replaced. Should split metered boards be installed for landlord areas in addition to tenant areas?
  19. u2v2w2

    Isolation sliders getting stuck on 3 phase distribution board to the point of partially braking off

    Anyone else had the same issue? Since this company keeps replacing machinery very often the MCB's get changed a lot so over time the slider contacts doesn't engage properly anymore.
    • u2v2w2
    • Thread
    • 3 phase board distribution distribution board getting isolation mcb off phase point stuck
    • Replies: 6
    • Forum: UK Electrical Forum
  20. timhoward

    Compact 3 phase distribution?

    I may be seeking the holy grail here, but does anyone have any instant thoughts for a compact 3 phase distribution board that doesn't cost the earth? I only need 1 outgoing 3 phase distribution circuit and 1 single phase final circuit, with an 100ma RCD main switch. This is all outdoors with...
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