induced

induced

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  1. A

    Induced voltage.

    Hi Just replaced a bathroom extractor fan. I didn't alter any wiring. Both old & new have live & switched live. Trouble is, once activated, the fan won't turn off. Vent axia say there's an induced voltage. Not enough to switch fan but enough to keep it running. Sure enough, there seems to be...
  2. T

    Induced voltage on neutral wire

    Hi everyone, When checking my consumer unit voltages with the full board off, I stumbled across something head scratching. Measuring the feed from the DNO, L-N I read 242.3 V. Measuring L-E I measured 242.3 V and N-E I measured a steady 30 mV. When measuring the live side of the main of the...
  3. T

    Induced voltage on twin and earth cable

    Why would I be getting 94v between cpc of twin and earth terminal at DB? Connected into rcbo with the other end 3 cores separated, nothing connected.
  4. U

    Using Induced voltage

    don’t worry I’m not going to do this .. If I have a wire that is powering something like a house and lay or wrap another wire around it the wire laid beside it or wrapped around will show a voltage if connected to a test meter . If I did it to the positive wire prior to the meter in a house I...
  5. timhoward

    Induced voltage in lighting

    Yesterday I had a call out to a 3 way switched top landing light which had a bayonet CFL bulb in it. Turn light off at either switch and lamp continued to flash every second or so. The wiring looked ok so I assumed (maybe too soon) an induced current issue but then a family issue meant I had to...
  6. J

    The induced EMF can be found by...........?

    Hey everyone, Im a complete beginner and looking into the lvl 2 2365 syllabus to see what i need to be studying. I came across some multiple choice questions and came up against the below question, can you please direct me to some good vids/sites etc that will help me to understand. I need...
  7. S

    Induced Voltage LED / Steel Trunking

    Just fitted some 10 Low Bay Led all wired in steel trunking. Have just noticed my volt stick light up on 3 cables that are not even connected to anything. Gets volt meter out and I've got 38v on it. Seems a hell of a lot. Anyone else found this with LED power supplies
  8. C

    induced current.. i think

    Hello guys I am a little puzzled with a job I am currently working on. A hotel we currently do work for had an EICR carried out by what appears to be quite thorough firm with regards to their items highlighted which all appear understandable with the exception of one on which we can’t get to...
  9. captaincaveman

    50 volts between nuetral & earth - Lighting/ fluescents

    Hello beautiful people. Quick one for anyone who may have an idea: Attended job today with a room with 2x 5ft fluescents not working and found 50v between N-E. I did basic tests on the fittings (continuity, ir, etc) - all ok. main earth and everything else ok. Checked the light nearest the...
  10. N

    Induced voltage keeping my extractor fan stuck ON

    Morning All! Firstly sorry if this is in the wrong section, it wouldn't let me post in the DIY bit where i thought this should have gone. I've got a problem with my extractor fan staying on (new installation) It's a 'manrose' inline extractor fan with a timer. i've searched countless...
  11. Hellmooth

    2 way switch induced voltage?

    Got a 2 way switch that gives 43 volts down one strapper when off, could this be an induced voltage, and if so why isn't it on the other strapper when it is off? Also voltage at light switch is 250-252v, the light switch was faulty under load so couldn't be switched, when powered down it...
  12. N

    Ring continuity voltage at dead test

    Hi guys doing a ring continuity test . R1,Rn,R2 values all okay. Done figure of 8. Tested at each point and not allowing continuity test due to 8 volts. Stuck on what this is? Any ideas ?
  13. D

    induced current in kiddies' trainers

    Lady asked me to look at a hallway socket . Every time she switched the faceplate on/off, the lights in the heels of the boy's trainers next to a plugged in appliance cable, briefly came on. Couldn't remember at the time, but think Lenz' Law was the guilty party.
  14. S

    Induced voltage?

    i recentley carried out an ecr to a domestic dwelling and found the main earth was sparking when touched to the earth bar, all test result were ok , all ir's to all ccts were +299Mohm , main protective bonding conductors all verified , split board installed (16th) split with 30 mA additional...
  15. T

    12v on socket ring main after isolation.

    Hello all! I've come across a bit of a problem today as I was changing a socket and got a tingle (Isolated the MCB of course). I tested the voltage and it was pulling 12v. I've found when you isolate the upstairs lights the 12v on the upstairs sockets disappears. Its a 17th edition dual RCD...
  16. M

    Led snubber

    Having read the forums about these, there appears to be several answers as to what and where. Is there a definative answer as to what these are, where you put them and where to purchases them ?? I dont want to go into a store and be looked at like i am speaking in tounges ! :6:
  17. R

    Stuck on a underpinning knowledge question!

    Hello Folks. Situation is I'm doing the online 2356 and have to do some underpinning knowledge questions, but I feel I may be over thinking this one.... "Why would an induced overvoltage occur and what damage may occur if this happened while working on an un protected computer?" Now is it as...
  18. M

    EICR Code for no main earth

    Throw this out there what code would you put down on a EICR report where "There is no Main Earth to the installation??
  19. C

    Lighting Circuit Problem

    Hi All, Just returned from trying to locate an issue with an upstairs lighting circuit - with the circuit L/N/E disconnected from the board and breaker I get he following readings:- (a) Type 2 Insulation Resistance Test = 49.7 taken at 250V (b) Voltage reading on the (dead) circuit of 3.5V...
  20. B

    House installation - induced voltage

    Recently I moved in into a new-built house. When installing the lights (chandeliers, etc.) I noticed that on some lights there is voltage in the cable, even if the light switch is turned off. Later I discovered that this problem happens only in the lights with two or more switches. Because I...

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