neutral

Recent contents Top users
  1. R

    Current flow in neutral but no voltage ?

    Having a challenge understanding the concept behind why when you measure across line and neutral (live circuit) using voltage indicators we have voltage reading of 230V single phase. If there is current flow in the neutral why is it termed as 0V ? On that basis, second question - If I tested...
  2. 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...
  3. Waseem

    UK Bathroom Fan wiring to ceiling rose with old line and neutral

    Hi, have an old bathroom fan. Which has two wires the black and red (line and neutral). The fan has no isolator switch and was powered when the bathroom light came on. When turning the light off, the bathroom fan stopped. I disconnected the fan wiring from the ceiling rose to clean the fan. Now...
  4. R

    most sockets show live neutral reverse

    just had a new meter fitted,tells me most sockets are faulty and not to use,all sockets apart from two show live neutral reverse. going to egypt for 2 weeks tomorrow,so can't get an electrician right now,must have been like this for years so assume it is still safe to use? any thoughts on the...
  5. M

    G99-SGI-3 4.4 kw set export limit phase to neutral loop impedance test on site

    G99 SGI-3 4.4 kw set export limit phase to neutral loop impedance test on site 0.309 ohms and dno max being 180 m ohms or 0.018 ohms so site reading are well over the top or is this not unuall for 1950 lead cable TN-s
  6. T

    Lost Neutral on 3 Phase system - how do you calculate the effect on line voltage

    I know the effect of a lost neutral (floating neutral) on a 3 phase system, and the theory of why the line voltages can vary. However, I have been attempting to show this by calculating the line voltages of a phase system at given loads on each phase. Lets say:- Red 296 Amps, Yellow 279 Amps...
  7. V

    Unusual Neutral Tail into Consumer Unit

    Hi, Ignoring the appauling conductor terminations which I found, in the background of the photo you can see a really odd neutral tail terminated into the main switch. I've never seen this before, has anyone else, and if so what is it ? Oh I should add this is at a flat, so the tails are...
  8. rduna755

    Metal shielding and neutral , Monophase

    Hi I know its dangerous but if there is no grounding and if I connect metal sheet to neutral will it empty rfi hitting on it?
  9. H

    RCD without neutral 2 phase supply

    Hi everyone, Quick question can you fit an RCD without any neutral connections? If I have a 3 pole circuit breaker which has all 3 poles terminated with a 3 phase supply (L,L,L excluding neutral or earth) on the primary side and I am using only 2 phases on the secondary side (L,L) to create a...
  10. Ricyteach

    Where to put unused neutral wire for light switch

    Howdy DIY soldiers, first post here. My question comes down to whether it would be particularly unsafe for me to temporarily wire nut and tape a neutral wire connected to an active knob and tube circuit and leave it in a wall behind a plastic box. I know that the "correct" answer per the NEC...
  11. M

    Neutral issue wiring a smart switch for heating

    Hi. I am trying to replace a heating timer with a smart switch. The current timer is the type with a dial on the front and 1 to 24 written on it where you pull out the little lugs to set what time the heating comes on and how long it runs for, APT is the make. The wires coming from the wall are...
  12. D

    Ground bar neutral bar connection

    I have breaker box at least 40 yrs old, both conduit and romex enter box, only one neutral bar that all white wires and bare ground wires attach to, bar has bond screw to box. Most everything I read and pictures on internet seem to contradict. Nowdays box must have separate neutral and ground...
  13. B

    Borrowed neutral on split load board

    I have a client with what appears to be an intermitent fault on the lighting, but trips the power. The installation has a 16th edition board with sockets on the RCD side, and lighting on the other side as usual. Occasionally when the landing light is switched the RCD trips on the socket side...
  14. 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...
  15. Pastory

    WHY ISNT THERE A NEUTRAL WIRE IN THREE PHASE

    Why the main three phase doesnt have a neutral wire before reaching a stepdown transformer, how does electricity form a loop back to its source
  16. KelvinGaliny

    Can Live wire runs through the Neutral side of RCBO?

    So I had an inquiry to make an electric panel (single phase) with RCBO, but it seems like our customer uses type C and F power plug (I live in Indonesia). This plug doesn't have a guide to ensure the Neutral would always be in Neutral side & Live to always be in Live side. Can I still use RCBO...
  17. dcg4403

    480V 3PH Neutral Wire Sizing

    Greetings, I'm a EE and have installed many electrical systems but am now dealing with my first large 3PH install on our property. I'm not formally trained in this area but very familiar as a EE. Anyway, can someone help me with proper neutral wire sizing? I've done a bunch of research...
  18. ilikemyhouse1

    UK How do I wire a switch into a lamp with three wires (live, neutral, earth)?

    I've got a security light which has two wires like a normal ceiling lamp (the first wiring diagram attached). I bought a new security light which has three wires (live, neutral, earth), attched is an image of that. There is also attached a picture of the current security light with its live...
  19. phochief

    Wiring new hot tub using old hot tub wiring

    Replaced our old 240v hot tub with a new one, which also uses 240v for motors, heater, etc, and 120v for low amp LEDs and touch screen control panel. Right now there are just three 6 ga wires at the subpanel near the hot tub. 6 ga Black, Red and green. The old tub only needed the two hot...
  20. G

    Reduced Neutral Sizing

    Hi, just want to check something. I am on a facility which has a 4 core 70mm non armoured feed from the transformer, coming into the DB at the other end it is now a 4 core 25mm non armoured cable (obviously it has a joint somewhere) and the earth conductor is from an unknown source, but both of...
Best EV Chargers
Best EV Chargers by Electrical2Go! The official electric vehicle charger supplier.

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

TrueNAS JBOD Storage Server

Advert

YOUR Unread Posts

Daily, weekly or monthly email

Receive a daily, weekly, or monthly email containing a digest of new and recently updated threads.

Advert

UK Tiling Forum | Tilers Forums
UK Tiling Forum by Tilers Forums UK
Plumbers Forums | Plumbing Advice | Gas Forum
Electrician Tips from Professional Electricians
JBOD Forums: a forum for JBOD storage server advice
JBOD Suppliers: JBOD Storage Server Supplies
Back
Top