phase

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  1. B

    Old 3 phase Lucy Oxford main cut out- removing fuses

    THIS IS FOR ELECTRICAL NEWS ONLY
  2. M

    ABB ACS880 - INPUT PHASE LOSS (FAULT 3130)

    We are using ABB ACS880 for rootsblowers, when the drive is in REMOTE MODE, after running several minutes the drive will trip the equipment indicating FAULT 3130 - INPUT PHASE LOSS. When we run it in LOCAL mode, we are having continuous operation. We need it to be in REMOTE MODE so we can...
  3. HappyHippyDad

    3 phase kiln questions?

    A customer has asked me to install a supply for a Wenger Webcot kiln. The faceplate is very worn and I cannot see the kW. They state the kiln it type 3670w and is rated at 12kW. The paperwork does have 3670w on it but when I look at the spec sheet (see picture 2, SpecSheet) ) there is no sign...
  4. D

    Hagar rcbo’s in three phase board

    Has anyone had this issue before ? Was working on a three phase board, when I took the cover off I noticed a black spot on one of the rcbo’s. it happened to be smouldering and started to catch a light. I noticed another rcbo smouldering too. I instantly turned off the main switch as one of the...
  5. G

    Thoughts of experts welcome - ancient three phase install?

    Thoughts of experts welcome. The first smart meter installer walked away as he wasn't three-phase qualified but i'm wondering whether we should get Western Power out beforehand or whether any other work would be recommended. Not sure what the supply box on the right is feeding and I think Noah...
  6. J

    New home. Is it 3 phase?

    Hi, just moved in, and I find this, and haven’t seen anything like it before. Is this 3 phase? any concerns at all? There is a heated pool outside. Could be needed for the pool heater. 1st post, and I thought I’d seek some guidance on here. Many thanks for replies.
  7. R

    Can a difference in phase voltages cause a motor to fail?

    Here is the background: A new Grundfos 3 phase sump pump was installed in a bore hole to pump groundwater to a holding tank. After 6 weeks the motor failed, the installer measured the voltage of the 3 phases which at the time were P1-237v P2-250v P3-233v and suggested this was the likely cause...
  8. 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?
  9. D

    6mm 3 phase 20mm conduit

    What's everyone's thoughts on 4 conductors 3 phase 415v at 6mm running 3.5mt in 20mm conduit domestic use. 9
  10. D

    3 Phase Install

    Hi All, Happy new year to you all! I’m working for an engineering company, been here for a few years. im currently working towards my NVQ level 3 in electrical maintenance and I’m in the middle of supplying a 100A Distribution board from a newly upgraded main 250A board. When the new board was...
  11. T

    3 phase cable calcs

    After my last post and having and having to re-learn some stuff can someone check and advise on a few things. Sorry if this is wrong don't hate, will make a good learning exercise as my mentor won't help me and hopefully will help others. Specification 16 circuits- wired up to caravan hookup...
  12. T

    Cable calcs 3 phase

    Its been long since I was in college doing cable calcs and obeing onsite as I've studied a completely different course at university, I understand de-rating factors but need some clarifying up to brush up. If I need a 600A supply which can be split 200A each phase. and being supplied via SWA...
  13. P

    4 or 5 pin plugs for 3 phase supply from inverter?

    I have recently bought a 3 phase bandsaw for hobby use and acquired a single phase to 3 phase inverter to power it. When I looked at buying cable and plugs/sockets for the supply I didn't know if I should choose 3P + earth or 3P N + earth plugs and sockets. What is the difference and which...
  14. 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...
  15. T

    Bare 50Hz AC 3 Phase Bus bars...what is safe voltage to use

    Hi Hi, We will have isolated three phase bus bars. Fully Mains transformer isolated. (mains input is 240VAC phase to...
  16. 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...
  17. J

    How can you tell if two of your sockets are on the same phase?

    I’m planning on buying a powerline adaptor for one of the upstairs bedrooms. This is to allow for a stronger internet access from this room as the WiFi signal is almost completely blocked by an external wall due to it being an extension. My Wifi router is downstairs in my living room and I’ve...
  18. G

    Convert to UK recognised electrical qualification

    Newly relocated from South Africa. Full 3 phase trade tested with a complete wiremans licence. Looking to get converted to a UK recognised equivalent.
    • Garethley
    • Thread
    • 3 phase complete equivalent get licence looking newly phase recognised south south africa tested trade
    • Replies: 2
    • Forum: The Welcome Forum
  19. O

    3 phase ring main in a tool room. X6 16A sockets

    Hi, I have been tasked with installing 3 phase ring main in a tool room. X6 16A sockets. Each pice if kit will pull no more than 5A. Planning on using 4mm SWA cable protected by a 63A breaker. Tool room dimensions are 7M X 5M. Any problems with this?
  20. 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?

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