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  1. M

    Can a 3 phase motor that is running on single phase have 2 directions?

    I am needing to know if this wiring diagram is showing a few things: 1: Does this show a 3 phase to single phase conversion? 2: Does this show that the motor can turn in 2 directions with the same internal wiring if you toggle the SPDT switch?
  2. R

    Best way to extend a single back box into double on already tiled wall?

    Customer wants 1 single socket outlet turned into double point on his kitchen wall which is tiled already with single box hole cut out Is it best to measure out the space required to fix double back box , drill multiple holes around the edges and go round it with angle grinder diamond disc...
  3. J

    NICEIC Certification Scheme Advice please - Certification for competance in basic single phase installation

    Hi all. I am looking for some advice. I am looking to become certified to install consumption measuring devices in small businesses. I have many years of expereince on basic single phase supplies includiing consumer units etc, assisting my father's company when he's snowed under but never...
  4. I

    Fitting twin horns to a single horn set up. Extra Relay required??

    Hi all, i´m new on here and really hoping for some good advice. Not getting much response from an owners forum!! My Seat Altea is fitted with a single horn. There is a number 53 relay fitted to the relay panel and I believe this is for the horn. I want to fit twin horns in place of the single...
  5. R

    Fitting a single phase Matt:e for car charger

    Evening all, Just After some knowledge about the Matt:e. I have been to a job where a 13 amp Rolec car charger point has been fitted On an external garage wall which is attached to the house. I can see no evidence of an earth rod and I am assuming it is still connectEd to a pme earthing...
  6. E

    How easy is it to convert a house from single to three phase ?

    I am thinking of having a car lift (that uses three phase supply) installed in my house, my house is single phase, what are my options?, what would be involved?
  7. P

    What do I need to know to calculate size of single phase motor?

    About 20 years ago I bought an old table saw from a local school. I only had single phase at the time so I changed the motor and switchgear as it was 450V. I'm thinking of buying a 3 phase 50s bandsaw and have the same problem, but I can't remember how to work out the size of the replacement...
  8. J

    Replacing a single socket

    Probably going to get slaughtered for this, but I took a single socket off this to replace with another single socket that was smashed, but I was met by all of these wires and some require for lives to go into one hole which is proving impossible considering that’s how it was wired in the first...
  9. M

    Garage lighting 1 single pole to control all 3 and 1 sensor switch to control middle one

    Hello fellow electricians, I am currently in the midst of wiring 3 lighting fixture at my friends garage. I'm just wondering if there's an easier way to do it or if the way I'm going to do it is going to break the sensor switch. So the situation is this: I'm going to name the lighting fixtures...
  10. HappyHippyDad

    Is this single phase as well as 3 phase and what is it's power rating?

    Evening all.. A friend/customer has just asked if I could connect up this commercial washing machine down at his domestic stables. He has had it in his house for 10 years. Recently it has started tripping the B40 MCB. It does not trip immediately so I don't think it is the inrush, plus it did...
  11. D

    Can you use a single phase motor to create three phase power.

    This might sound like a stupid question so apologies in advance. So I had a random thought in my head. So I was wondering if I was to use a single phase motor to spin a three phase generator to create three phase power, would you be able to create more power then the single phase motor is...
  12. M

    Can I Just replace a 3phase motor with a single phase on my lathe?

    I have a metal lathe, 1.5hp, 3phase, 575v motor. Can I just replace the motor with a single phase,220v motor? Would all the lathe wiring , switches, relays work? IF so, what HP motor should I buy? Thanks,
  13. Michael J

    40 Amp single pole n/c main contractor?

    I need a 40A single pole contactor. The main contacts to be normally closed in the distant passed I seem to remember you could get them. Anyone know where to get them? Thanks in advance
  14. D

    Is it safe to use 10mm flexi conduit for single circuit cable run, less than 3m, mounted in ceiling, 2 LED domestic lighting points?

    Trying to replace a single run, approx 3M with no bends, of a single 1.5mm twin & earth cable between 2 lighting points in a domestic space. Cable to be mounted IN the ceiling & plastered over. Both points to carry an LED light fitting so minimal current. Is it safe to use 10mm conduit? BS7671...
  15. 5

    Connecting a single wire dash light to a double wire light

    I have a water temp sending kit for my old chevy. However, I don't want to use the plastic warning light it came with. I want to use my own chrome warning light because it fits the look of my dash better (51 Chevy Wagon). The kit plastic light has two prongs and is self-grounded. One prong is...
  16. D

    I need help with how inductance works in a single phase transformer

    I currently have this, Primary inductance on an AC transformer will determine the magnetizing current on the unit. Usually inductance is relatively high so the magnetizing current can be as equally low. This inductance can be seen as part of the magnetizing current; however, it will not be seen...
  17. H

    Can you use this 3 phase device on single phase

    Hi there I purchased goods to build a sauna back before Christmas and only now am I getting around to doing it. I was just looking at the heater controller and noticed they they’ve sold me a unit that says it is for a 3 phase/400v supply. I did make clear I only had single phase as many...
  18. F

    No isolation of Neutral in Single phase boards

    As title. Doing an EICR, have come across a couple of DBs, where the neutral goes straight onto the bar on Single phase boards. Whats your views on this guys? Should it have a requirement to be isolated? Is there a reg for? If so then it can be coded. My boss thinks its dangerous. I don't, but...
  19. O

    UK Single or Three Phase Identification (Vehicle Lift Content)

    Good morning all, I’m afraid that I’ve come here looking for some advice with a problem I have with some vehicle lifts that I have been asked to dispose of. I have listed them for sale, but I am not sure how to determine whether they have single, or three phase motors. I am now aware that any...
  20. A

    choosing cable voltage rating

    Hi, for a single phase LV installation, how do you determine whether to use 450V/750V or 0.6/1kV cable. Thanks

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