three

  1. BigSi

    Three Phase Emergency Stop Button

    Hi all. I’m after a bit of advice regarding emergency stopping. I’m carrying out some remedial work on a building where it was noted that an hydraulic band saw had no form of emergency stop. The machine is started by it’s own start button, but relies on a stop leaver to activate when the...
  2. N

    Moving main supply, fuse and meter (homeowner enquiry)

    I'm having building work done and would like to have the incoming supply, main fuse and meter all moved. The house is one end of a terrace of three and the main supply is overhead to the other end of the terrace. It crosses the front of the three houses at 2nd floor level and then drops down our...
    • Neil Jay
    • Thread
    • enquiry floor fuse main meter moving other supply three
    • Replies: 2
    • Forum: DIY Electrical Advice
  3. jordanlewis88

    Level 2 student, going on level three seeking apprenticeship in bedford/bedfordshire

    I am currently studying a Level 2 diploma in electrical installations at Bedford college, and i am nearing completion of the course:sorcerer:. So far completing the 202 and 203 modules of the course which are principals of electrical science and electrical safety. I also have some experience...
  4. H

    12KW three phase immersion heater

    Hi all, good afternoon. New on here, so here goes! Quick question and some advice really! I have a 12KW three phase immersion heater installed into a hot water cylinder (for commercial premises). The immersion heater enables and disables via an on site building management system so therefore...
  5. yellowvanman

    Wireless switches

    Planning a re-wire of a very old thatched property. All lighting will be via 2A sockets (except bathrooms) and some of the walls are just wooden planks (building control are very protective about them) and it wouldn't look nice clipping cables on the surface to a switch on a surface pattress...
  6. M

    Three phase calculation

    Hello everyone please can someone calculate the current for a three phase machine at 28kw unity pf I already I have seemed to forgot how to use the calculator cheers in advance 27kw three phase
    • m4fiaafg
    • Thread
    • calculation phase three three phase
    • Replies: 45
    • Forum: UK Electrical Forum
  7. B

    Three phase Immersun equivalent - does one exist?

    I have a couple of domestic clients with 3-phase PV and they could usefully use something like an Immersun to power a single phase load, but by monitoring import/export on all 3 phases, not just the one. The reason is that meters net the power consumption across the phases. Does anything exist...
  8. A

    Three plate & loop in methods

    Hi, I'm an electrical apprentice and wanted to know why the loop in method is preferable in industrial applications to the three plate method. I've learnt these methods at college but it seems that people at work think they're the same thing. Thanks
  9. spud1

    Fault on three phase sports floodlighting

    Hi, I have a single fitting on a 3 gang, 3 phase floodlight over an astro-turf at a school that wont work. I have changed the 2kW MH lamp with no joy. Is there a safe way I can test the dedicated ballast and ignitor for correct operation? There is voltage on the incoming terminals on the...
  10. N

    Advice - Please 2 or 3 wire circuit

    sorry for such a basic question, is the circuit in the picture attached a 2 wire circuit or a three wire circuit, I am looking to install a 2 gang dimmer switch and it says it needs a three circuit with neutral Zwave TKB Dual Paddle Wall Dimmer2 Thanks Neville
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