3 phase

  1. E

    3 phase boiler install on domestic property

    Hi all, A customer is looking into the option of upgrading to a 3 phase power supply in order to get a new electric boiler system installed. They currently have a single-phase supply. They have an out-building with an electric car charger. Would an option be to have say a 1 way 3 phase board...
  2. B

    Old 3 phase Lucy Oxford main cut out- removing fuses

    THIS IS FOR ELECTRICAL NEWS ONLY
  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. 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.
  5. 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?
  6. 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
  7. 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...
  8. 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...
  9. 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...
  10. James

    Reported content: Post in thread 'Domestic - 4 or 5 pin plugs for 3 phase supply from inverter?'

    Post in thread 'Domestic - 4 or 5 pin plugs for 3 phase supply from inverter?' by pgrbff has been reported by James. Reason given: Content being reported:
  11. 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...
  12. S

    UK DOL Starter advice

    Hi all I would like a bit of advice to do with a DOL starter ill be fitting. Basically I'm replacing an old water damaged crabtree DOL starter with a new mcg DOL starter. The old coil was pulled in via a single channel heating timeclock and the new one will need to be too. The old DOL just had...
  13. 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...
  14. 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
  15. 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?
  16. 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...
  17. lloydy304

    3 Phase 4 wire

    Hi, quick question about 3 phase 4 wire systems. If I was wiring a single TP+N board all circuits running 230v very and well balanced and had a max load of 234A / 3 = 78A per phase. So removing all correction factors and sizing the connection tails a wire size of 16mm br/bl/gr/bl should be...
  18. R

    CamLock Box install - 3 Phase

    I am needing to install a CamLock power box to provide power to some equipment. Located in a commercial office building. The equipment is a robotic arm that requires 208V, 3 Phase Power, 30 Amps max. It comes with a controller and transformer. The overall power flow is as follows: Building >...
  19. D

    Concern re 3 Phase imbalance

    Could you please assist an end-user with limited knowledge:- The system we installed in our new-build is 7.83 Kw of PV with a 'Solax X3' 3 Phase inverter. A later addition was a Tesla Powerwall 2 with the later gateway. Following a series of short (2min) power cuts and lights flickering UKPN...
  20. B

    Seimec 3 phase motor plate shows wiring for 240v? Can I have 1 phase out of it?

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