earth | Page 2

earth

Recent contents View information Top users
  1. T

    Is there any advantage to installing a ground rod instead of the combined earth to neutral in my CU

    Hello All I was pondering an idea recently regarding the ground connection to my property. At present it has a combined Neutral to earth at the point it enters the building from overhead cables and immediately prior to the meter the earth from the CU joins what looks like a Henley type block...
  2. A

    No earth electrode visible?

    Hi all, Carrying out a periodic inspection at a domestic installation. Semi- detached house on a row of houses. I cannot for the life of me locate any sign of the earth electrode inspection chamber. Just wondering how you would number this? A 1,2,3 or a 4? Thanks
  3. K

    UK RCBO indicator , short circuit or earth fault.

    Anyone know of an RCBO manufacturer, apart from Chint,that includes an indicator in the RCBO to indicate if the trip is a earth fault or an overload.
  4. N

    LED mirror has double insulated symbol & earth wire - what are your thoughts?

    I recently bought a bathroom mirror with LED & Bluetooth speakers (from Amazon). There is a double isolated symbol on the back of the mirror yet there is also an earth wire connection. Is this unusual and should it be a cause of concern? It has not been installed yet - just wondering what your...
  5. D

    Plumbing earth bonding

    Disclaimer: I'm not going to attempt this job myself, I want a professional to do this job properly since I consider it non-trivial and need it safe as poss. The reason I'm posting it in DIY is because I want to understand it properly. I believe our plumbing is not bonded/earthed. Quite clear...
  6. S

    No earth in old lamp

    Thanks in advance for any help. I've got an old lamp (inherited from my gran) that I want to add a switch to and lengthen the wire. It doesn't have an earth and I was wondering whether that's okay? I've read about double insulated appliances but I think this lamp was probably built before they...
  7. E

    LIVE EARTH WHEN REWIRING DOUBLE DIMMER

    I have carried out home wiring for 60 years as a competent person, for the last 20 years, I employ a local electrician to check my work and sign it off. My new partner’s dimmer switch failed, the push button would not push, so I purchased a new unit. I turned off the MCB for First Floor Lights...
  8. newfutile

    ANPR metal housing not connected to electrical earth

    As above the chest level from ground ,metal ANPR housing has no connection to earth ,it has monitors modems and a camera inside with a 230 volt supply run from out totem pole lighting . Its on a 6 amp rcbo. the ZS measures 1.93 ohms cpc to metal case measures 158 ohms so its an extraneous...
  9. M

    Is this TN-C-S or TN-C, also earth bonding size.

    I've tried to understand one way or another but this seems to be connected to the DNO fuse/cutout, and then loops down (out of sight) and comes back up to connect to the outer sheath. The bonding looks like 6mm^2. And the connection point looks like that's the max it will take. As I understand...
  10. P

    Can earth electrode resistance values be too good/artefactual?

    Hi all, Would like some advice on the below. Context: Rural French domestic installation TT system Earth rod is situated inside the property, buried in the concrete subfloor Distribution transformer (overhead supply) is very close, on a pole approx 40 metres from the property I did some 3...
  11. ak247fox

    Can i use 6mm twin and earth with wago 5 way to wire up a double plug

    I had to replace a surface plug socket box after the plasterer destroyed the old stuff. It has black, red and earth wire, 3 of each and look quite thick (the earth wire looks like it should be used for barb wire abd isn't covered) Sticking all of that into a new faceplate isn't working so well...
  12. O

    Are solar panel inverters tied to earth?

    I'm in a questions asking mood tonight. I briefely looked at a job today and I need to recommend a board change but need to justify it. Firstly there isn't any main switch, just two RCD's. Looks like an old 16th ed board and someone has replaced the old main switch with an RCD and then looped...
  13. yowie7860

    Solid Core Earth in multicore

    So, according to AS 3000 5.3.2 Earthing conductor material and type 5.3.2.1 Conductor material 5.3.2.1.1 Copper conductors Copper earthing conductors shall be of high conductivity copper and shall be in the form of— (a) stranded conductors; (b) circular braided conductors; or (c) solid...
  14. W

    What is an example of functional earth?

    Doing some college work atm and come across a question asking me to provide an example of functional earth. I asked my boss at work but he doesn't even know what it is. The regs says " Earthing of a point or points in a system or in an electrical installation or in equipment for purposes other...
  15. Conan The Librarian

    Earth to Neutral Continuity - Advice Needed

    Hi all. Reasonably competant non electrical engineer homeowner here. I have a question for the experts: I recently replaced a horrible above-ceiling downlight connection with a proper Hager junction box. Whilst checking things generally I found my multimeter was reading a continuity between...
  16. S

    TN-C-S earth and Island mode inverter

    I am installing a Victron Quattro in an island mode configuration (in the UK, the DNO is the NG). I will be adding a stand-by generator. My property has a standard TN-C-S (PME) earth arrangement. I am an electrical engineer (testing) not an electrician. The regs state the DNO earth cannot be...
  17. T

    size of earth on 16mm mains tails

    Hi I have a domestic installation to rewire and the main incoming fuse is 80 amp so i am using 16mm double insulated tails, is the main earth size with this 16mm or 10mm ? Thanks
  18. Y

    Alternative retro fit earth tag options for SWA?

    I'm working on a system that has been installed incorrectly. It's a 3ph Hager board with 8 swa cables glanded into the bottom entry panel. The install is fine except the earth tag (banjos) haven't been fitted and they have relied on the metal plate as an earth. My question is, can you get a...
  19. D

    item with a metal case and no earth wire in the plug

    Performing the PAT inspection on some science equipment and I have found some items that were passed by the previous company that performed it however it failed the earth bond test and has a metal case its a air pump. upon closer inspection, I found that they only have two core wires and have...
  20. Cankeredlamentations

    What to do with distributers earth after conversion to TT & advice on where to place the rod

    Afternoon all I am looking for some advice as on what to with the suppliers earth after a conversion to a TT system. Current issue is earthing arrangement is TNS, reading was nearly 60 Ohms, reported issued to DNO, they are effectively washing their hands of it as the (based on what the...

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top