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metal

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  1. Gary Tollison

    Fused connection unit mounted on metal backbox

    greetings :) I’m taking a spur from a ring final. A fused connection unit will be controlling the spur. FCU will be mounted on a metal backbox flush in a brick wall. I’m planning on using a junction box to break into the RFC, and taking the spur cable to the FCU. My question is, do both cables...
  2. Spoon

    The use of plastic wall plugs for the 18th....

    I was just reading an interesting post about the 18th when the above was mentioned. there seems some debate about this. I initially thought that the idea of prohibiting the use of them was stupid, but I'm not sure now...
  3. E

    Metal clips...............

    Anyone know of any clips that'll meet the expanded scope of new regs concerning clipping cables (not just trunking only clips). Have used D-Line ones just wondering if there were other options people had tried (obviously there are other things you can use other than clips, but my question is...
  4. R

    PME METAL OUTBUILDING

    Scenario encountered: New submain looks to have been taken from a PME supply in 4c 10mm SWA with no copper earth to a external metal feeder pillar. The SWA has been glanded into new metal clad DB within the feeder pillar effectively incorporating it into the PME supply. A Earth has also been...
  5. H

    Earthing the metal framed building

    Hi, I am currently working on a block of flats which the whole building is steel framed, my question is really... does it need to be earthed? Thanks
  6. MFS Electrical

    Metal blanks in AMD 3 boards

    I hate metal blanks there I said it I simply do not see the point the cover should stay closed itself and if there were an internal fire the mcbs would melt and the fire would get no further than the metal lid what about earthing are you supposed to drill and bolt an earth onto the blank? Scrape...
  7. E

    For Sale get your wallets out, shed clearance mcbs, metal clad items etc

    MK stuff (New in package) 2x 13A DP secret key CU with neon, tamper proof key metal clad with boxes 1x 20A DP key operated switch metal clad with backbox 1x 2G 13A socket with backbox 1x Acel 2G socket enclosure ip65 1x Wiska 900x900mm JB white 1x Honeywell 8v 1A transformer 1x Aico Ei208 CO...
  8. O

    Switch fuse - metal clad recommendations

    Need to do a switch fuse install and I was wondering which products people prefer ........ Needs to be metal as the sub main is going to be SWA Thanks
  9. DeanoRN

    Earthing metal back boxes.

    Hi, i was just after a definitive answer of someone regarding if metal back boxes are to be earthed? Ive had a look around and can't find a definitive answer, i was told by an experienced electrician i was assisting to earth them, then yesterday i was with another gaining some experience and...
  10. K

    earthing a metal junction box?

    my father recently bought a house and it has an ancient consumer unit fitted, next to the unit is a metal junction box which all the cables pass into and they are joined what i assume is the original wiring, all i can assume is that the consumer unit has been moved over and so the wires have...
  11. M

    Glanding 3 phase into metal distribution board.

    Quick question, have a small caravan site to wire up. Have 3 phase supply and TT earthing, 30ma RCD in each individual pods. Was planning on using a 100ma type S incomer in the main DB to protect the sub feeds. ( this should stop a dodgy caravan tripping the whole site being 100ma time...
  12. B

    ADA Gen 4 system metal casing

    I have replaced the alarm panel. The alarm tests are ok. The walk test is ok. I have changed the Engineers& User codes also set up the zones, times zones, inhibited zones , entry and exit times. The alarm with not activate just keeps beeping. Should there be a wire into Set terminal next to the...
  13. R

    Am2 exam question bonding cable tray/ metal trunking?

    Hi everyone, I am sitting my AM2 exam a week today and was wondering if the metal trunking, cable tray etc needs bonded back to the MET in the board? Will you fail if its not bonded or will it be a minor? Anyone got any ideas? Thanks.
  14. A

    Metal Halide Circuit Issues

    The background: I'm building a rig for an engineering project to age polymers, using UV radiation and water cycles. The power supply, water pump and actuator (use not relevant) are controlled via an Arduino. The rig has worked in the past with Infrared bulbs (for a different project). I'm now...
  15. Electron

    Damaged thread on lug of metal back box

    Can anyone suggest a way to fix a damaged screw lug on double socket back box?
  16. Loki

    Metal external lights but not earthed

    Hi all, Just wanted to ask a quick question. My parents have nominated me to their friend (old couple) to swap 3 outside lights (original lights & new are metal) which they have purchased. Fine am happy to do it. First light was done fine, all tests done. The next light is a pir which also...
  17. D

    Metal cable tie distance

    I’m working on a commercial construction site and I’ve been requested by he client to install metal cable ties to all inverted tray runs for my beldon and SWA cables. I’ve looked through BS7671 and I can’t seem to find the distance required between each metal cable tie. Does anyone know where...
  18. F

    Vintage/aged metal clad accessories

    Looking for a supplier of vintage/aged looking metal clad accessories. I have a client who has just purchased a run down cottage as a renovation project. The kitchen has painted brick walls, which she loves and wants to maintain. She would like the cable runs in steel conduit and the...
  19. J

    Replacing plastic light switch with metal type

    I need to replace some plastic light switches and would like to use metal replacements. The old switches had no provision for an earth wire and most of them had a sleeved unconnected earth wire which I was able to utilise. However, in three of the back-boxes the earth wire was cut short, is it...
  20. E

    Metal Fuseboard Domestic Dwelling

    When Installing A New Circuit To A Fairly Recently Installed DB (Plastic). Do You Have To Change The Consumer Unit To A New Metal Board - On Installation Certificate It Asks To Tick About Combustible Materials But Currently Having A Debate With Colleague. What Do You Guys Think?

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