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metal

  1. U

    wiring metal light holder to old ceiling rose

    Hello there I bought a vintage smoked glass shade chandelier pendant ceiling light and wired it up ok (well the bulb didn't blow) but took it back down because the brass thingy wouldn't do all the way up on my existing ceiling rose.Can i just wire up the metal ceiling light holder...
  2. N

    Questions regarding metal gang boxes

    Hi everyone! I am an industrial designer working from Israel, currently working on a product that will be installed in american homes and needs to fit into a one-gang box. I'm having trouble figuring out how common are the metal boxes out of all the home-installed electricity box...
  3. happyhippydad

    Does this metal post need to be earthed or bonded or neither?

    I have 5 x 6m metal posts sticking out of the ground used for 200w floodlights to light up a manege. This is a domestic stables. The posts test as 35ohms to earth. The installation is TNCS and has 30mA RCD protection on all circuits. The floodlight will be earthed and in doing so the post will...
  4. S

    Technical advice required - metal socket or plastic? / Trunking?

    Hi all Recently my company (I'm just an employee) moved into a new unit and have installed some shelving, the BigDug kind. We've had plug sockets located above (2) each unit to provide power. This was done by the electrician so that's all good. I need a plug socket on each shelf (5 in total)...
  5. Pete999

    1st fix metal back box fixing, how do you do it?

    Like the title says, I think it may have been posted before many moons ago. 1st fixing bac, boxes I used to bed all my boxes in with bricklayers compo ( the stuff they lay bricks with) wait until it sets, if you have time, and then drill and fix with rawlplugs and screws, how or what method is...
  6. R

    25mm Knockout Metal Clad Boxes.

    I’m looking for some metal clad sockets. But I need 25mm knockouts. Does anyone know any surface mounted metal clad sockets that have them? MK do some nice ones but they are only 20mm knockouts.
  7. Dustydazzler

    Why? Is metal conduit so thick

    I have been given a short length of Emt tube from America , which is basically their ‘go to’ produce for surface wiring. It is thinner than our version and much easier to bend than our version. I would say it’s not much thicker than copper plumbers pipe. But imo offers good mechanical strength...
  8. I

    WATER CHEMICAL FOR METAL AND STAINLESS PIPE

    We have some CHILLER SYSTEM event start for first time use water 700 TDS and than stoped for few month leter, we worry at the isntalation piping and chiller tube will be rust and cholride in stainless the tube, so, how to we keeping for and chemical should be used for that. thanks
  9. S

    Fixing light fitting to metal cladding

    Hi guys Got a job to replace some external lights to an industrial unit.(mostly 150w LED floodlights around 12kg) All lights are currently fixed via nut and bolt with no access from inside as they have now converted to offices so unable utilise existing fixings. What do you guys recommend using...
  10. I

    Refused to install metal light fitting

    Today I had a quick job on the way home which was swap a pendant for. Fancy light fitting , but when I removed the pendant there was a pre 1966 2core twin cable And a separate 2.5 single earth cable fairly new , it looks like someone has gone around every light with the earth from the board to...
  11. H

    Please don’t shoot me. Static caravan and a metal shed.

    Ok. Static caravan....... The site supply arrangement is apparently TNS and the static caravan uses this for its earth. (I will check with the DNO that it is aTNS arrangement.) There are three MCBs in the static caravan CU, one of which directly supplies to a solitary double socket inside a...
  12. happyhippydad

    16mm metal back box.....6p each!

    Hello all.. Just wanted to let you know about a bargain! I wouldn't usually buy from e-bay, but you cant really go wrong with a metal back box. 100 Flush Single Metal Back Boxes 16mm 25mm 35mm 47mm 1 Gang Electrical Pattress -...
  13. rolyberkin

    Metal Cut out - Fuse Type

    Hi can anyone advise what type fuse was commonly fitted in an old style metal cut out, the head is being changed imminently by the DNO but I would like to know what is in there? Thanks
  14. C

    Plastic conduit into metal cu

    Hi this is my first post here. I’m a newly qualified spark mainly working in domestic houses, I got a job coming up where I’m planning to install pvc conduit for some sockets in garage attached to a house. Would installing pvc conduit affect the fire rating of a consumer unit or would I just...
  15. M

    Do I Connect Clean Earth On Metal Switched Socket

    I’m replacing old plastic light switches and sockets for metal ones. I’ve gone with BG Nexus range but I’m a little confused as to whether or not I need to connect a wire to the clean earth connection. Looking at the wiring diagram it is not used. I know I need to run a fly lead from the switch...
  16. Deleted member 9648

    BG Dual RCD metal DB's

    Anyone had issues with the RCD's? Added a spur from a new DB yesterday (not installed by me). The RCD failed the 5x test when tested at the load terminals with all mcb's off. Perplexed I tried the other RCD with the same result. MFT tested the RCD on another job later with results as expected.
  17. C

    Kopex inside metal trunking

    Hi all, New to the forum, question regarding Band 1 and Band 2 segregation... So on a site I'm working on, installing access control system. Now the access control panels have designated metal trunking for all relevant cables being low voltage. The trunking is directly above the panels. The...
  18. Y

    Bonding earth to metal furring behind plasterboard.

    Should I bond all metal furring behind plasterboard to earth busbar
  19. andysparkfree

    Metal all the way, no brainer

    Hi all, just thought i'dd share the picture of the live distribution board we came across this afternoon following a callout not only was this live when we got there (seems that the fire brigade removed the wrong fuse from the ryefield board) but is a shocking example why every old...
  20. haptism

    Where are you getting your metal buckle clips

    Wheres the best value for £ metal buckle clips to be found in 2019, ive seen the SAREN ones but they are well pricey, and you need to buy the nails for them separately. The Shneider metal clips from screwfix £12 per 100 wtf. Where are the compliant housebashers getting clips for T&E nowdays ??
  21. T

    Class 2 metal fitting

    Bought 2 metal wall lights arrived today and just opened them. They are completely metal in construction states on the fitting they are class 2 and have no earth connection. The cables leaving the chocbox inside to the lampholder are single cores. How can this be class 2?
  22. M

    Domestic Leave existing ceiling rose within new metal light fitting??

    I'm your average DIYer and after advice about replacing a pendant light with a new flush metal fitting. I can fix the new light to the ceiling and the existing rose sits within the void of the new fitting without any clearance issues. Is it OK to leave it in place and wire the new fitting into...
  23. M

    New flex for old metal lamp

    Hi everyone I inherited an old WW2 angle poise metal lamp recently. It works fine, but I'm not sure it's safe... the wire looks antique and is obviously just 2 cores. I've thought about putting a new cable in it, and I'm guessing that it needs earthing as it's a metal lamp. Can anyone advise...
  24. suffolkspark

    Oil service bond metal tank pme

    I have just done an EICR... Havnt finilised coding yet. Property is TN-C-S Incoming oil to boiler... Copper oil line with pvc sheath, buried to metal oil tank sat on slabs on ground (it is not raised up) technical said it should be bonded.... Imo by bonding im taking pme potential out to the...
  25. the pict

    metal clips friend or foe

    I have tried a few of these now and to be honest I am not impressed, as to those wall dogs screws ...... really who is kidding who here
  26. M

    lighting in the metal shed

    Hi, Need a word of advice, how should I run supply to two metal sheds that are located about 20m away from the main DB. Should I run in SWA with 10mm bonding and as separate circuit to each shed or through sub-board adjacent to them? What IPX of switch and lighting should be, I'm expecting some...
  27. Paul228

    PE from metal back box to socket

    Have things changed and I missed the memo. Let's start by saying I'm a fossil. I was trained the old way, were u went with a mate and went to night school and day release. Anyway, was on a domestic fault for a mate of a mate. I rocked up, kitchen ring tripping. Asked any recent works, holes...
  28. G

    Metal ceiling light Ikea

    I'm looking to change ceiling light - from Ikea, its metal but there is no earth on new light connectors...i thought any metal light needed earthing?! The light is class II double insulated fitting so would that be the reason for no earth on light connector?? Will this be safe to fit with no...
  29. Gavin John Hyde

    Metal play equipment supposedly live due to powerlines?

    Just been discussing this story, apparently some metal play equipment was giving people a shock, close to overhead powerlines and a transformer... a small mention of dry condition, wondering on the cause? could it have been acting as a sort of rod and picking up some sort of fault via earth? Or...
  30. S

    Sequential reversing starter for metal detector conveyor

    Can't seem to find any standard circuit diagrams for sequential reversing starter. The metal detector conveyor has manual mode and automatic reversal mode. Need to prevent the conveyor from going backwards during false signals or anything else while the conveyor is standstill. It should reverse...
  31. happyhippydad

    How to fit a junction box to a round metal pole?

    Evening all. I may have to fit a weatherproof junction box to a hollow, round metal pole. The junction box will be around 20-30cm from the ground and 2 x SWA will enter from the bottom (CW20). 1 x rubber flex will leave through the back of the JB into the pole and up to the top where the light...
  32. M

    Domestic Plastic Light fitting with metal trim & no CPC

    I have a couple of lights on a circuit that does not have a CPC. The light fittings are plastic but they have a metal trim that screws into the plastic body. I wonder if anyone can advise me if these are deemed as safe considering the main body of the light fitting is plastic and the metal trim...
  33. P

    Small Metal enclosure for door entry power supply

    Hi all, I am hoping someone has already had this problem and can suggest a solution. Last minute decision by client to have an electronic release on a door means we have to mount the power supply (bell systems 340c) on the wall in a public space so it needs to go in a metal enclosure. PSU...
  34. bigspark17

    Metal clips/ties for data trades?

    Obviously bs7671 governs us in our electrical trade, and to the 18th we will need to use metal clips in all areas where cables are surface mount. So do data/cctv engineers have to use metal clips ect to prevent from premature collapse and who governs them to do so?
  35. Jason Philip

    Metal conduit straps

    Anyone know if there is a conduit strap available in UK market similar to this one: One Hole EMT Conduit Strap, Steel, 1/2 in. | Garvin Industries - https://www.garvinindustries.com/hanging-and-support/cable-conduit-surface-mount/emt-one-hole-straps/ohs-50 I'm thinking for 20/25mm pvc conduit...
  36. 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...
  37. 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...
  38. 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...
  39. 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...
  40. 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
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