1. C

    Hospital Emergency Power System

    Anyone have a one line diagram of a typical UK or EU hospital? How are the emergency branches divided per code? How many ATSs? What is typical?
  2. C

    Parallel generator, earthing and bonding

    Hello, can anyone advise on bonding of extraneous conductive parts when supply is from a generator run parallel with distribution network? There'll b a 200kva generator supplying spray booths that have a gas supply to them. The metal pipes aren't underground but connect to tanks outside sitting...
  3. M

    Catering van generator earthing ??

    Hi new here so take it easy chaps !! A client of mine wishes to supply their catering van from a new generator they are purchasing, I believe it is single phase 7.5kW Inverter style generator with a 32 amp socket outlet. My query is about the earthing to the van. The van has a DB inside with a...
  4. Michael J

    Domestic Standby Generator installation how do you certify?

    I don’t know if this has been discussed in the past? I have received a request to install a standby changeover generator/mains system. My question is, how do you certify the installation? Am I the only one posting on this forum?
  5. a-z electrics

    Domestic How to test/certify a small 230V generator installation?

    Hi all, Got a client with a small barn workshop and caravan powered by a portable 230V 6kW petrol generator. (Loncin 8000D-A) . The original 32A commando lead had a domestic double skt on the end, and theres another lead with a commando socket for the caravan. Theres only one 230v o/p. He asked...
  6. S

    New Generator is outputting 222-224volts

    I have bought my first generator a few weeks ago 2800watt with AVR for when I have powercuts.... The voltage/hz spec is 220v at 50hz, but on the plug sockets it says 230volts. I have plugged in a "plugin power monitor" into the generator so I can see what its outputting and it hovering...
  7. Rockingit

    Hospital 'emergency' Zs when on back-up generator

    Hi all, been a while - hello! A question for the collective brain - I'm about to do a series of inspections on an ANIMAL hospital. This in itself has always vexed me as to how to apply the special location medical rules as 1) a critical life-threatening operation is the same whether it's...
  8. C

    installing a temp generator

    I have a small bungalow sized building which I essentially a hut. They lost power and the DNO may not rectify for a while. The building will need a temp generator and only needs 3kw of power, asides from checking up on the regs can anyone offer some advice through their own experience?
  9. F

    Power for mobile catering - batteries versus generator?

    Hi all, I'm new here and have a pretty specific question. We've got a vintage ambulance we've converted to a coffee bar. There's a mains voltage hookup to a 3 way consumer unit which runs everything including a 12v charger which charges 2 x 110Ah batteries. Now, we're looking at a pitch where...
  10. K

    How not to melt a cable

    Any help appreciated, I have a basic understanding of electrics. I'm going to be hosting a small event ran entirely from one 2500kW generator. Off this I'm running two 500W speakers, a laptop connected to a mixer, two small laser projectors (doesn't specify any wattage but they're domestic not...
  11. normanton

    Generator Voltage Failure

    Tested one of our generators this morning, only about 76KW engine set. Started up fine, took the load of the building fine, connected a load bank, fine. Voltage readings all 240ish, temperature as expected, oil temperature as expected, coolant temperature as expected. 1.5hours later. Chug chug...
  12. Stuart Houghton

    Earthing Generator TNCS

    My customer wants to have one ring main connected via a change over switch to a generator. Earthing is TNCS My idea was is move the ring main to a new consumer unit run a 6mm T&E to the change over switch from the 32 amp mcb in the main C/U where the ring main was. Then a 6mm T&E back from...
  13. H

    Advise needed. Diesel generator loading issues

    Hi everyone, I would really appreciate some advise. I'm a domestic electrician but my neighbors asked me for some help on a issue he has and here I am. So my neighbor has a tree surgeon company, they have a yard where the cut and dry logs as well. So they've just got a new drying system...
  14. R

    Dirty generator power

    I live off grid, and use a generator to top up my battery bank in the winter when my solar is not producing, my inverter generator died, and I don't have the money to replace it, I'm using a back up Chinese nasty capacitor run geny, I would like to know if there is any device I can buy to safely...
  15. Ian1981

    Earthing arrangements of switched alternative generator sets

    Regulation 551. suggests that when supplying earthing for a switched alternative generator that fault protection should not rely upon the TN building supply earthing ie an earth electrode would need to be installed for the generator. My question is should the electrode also be connected...
  16. A

    How is a generator earthed and given neutral?

    Hi I have a question i cant seem to get an answer too. If you have a portable generator and you plug for instance a fridge or any appliance directly into it, how is the neutral/earthing provided?? I know already that normally you can connect the neutral and earth from an existing...
  17. T

    Royal Raymond Rife frequency generator

    Just throwing this out there to assay if anyone has done any work on the above or knows anything of it. Would be interesting to hear your views and thoughts if you have come across it or been involved in any way. I have been looking into this since around 2004 and attended a centre where this...
  18. D

    Why, on a given turbine, a smaller generator would generate less output?

    Hello everyone, I am a mechanical engineer with litle knowledge about electrical so I need advice from people knowing about electrical system. Having a wind turbine that I am testing at the moment, I first placed a big generator (PMG 500kW 690V @ 300RPM - 18000Nm) behind it and it could...
  19. D

    25kv generator cable size ???

    can anybody tell me what size sy cable I need for a 25kv 3 phase temp generator please to power a 3 phase machine lathe
  20. L

    Generator earth electrod?

    I wire out mobile decontamination units that have a 3 kva generator. We supple earth electrodes with our units for use with the generator. Every circuit is protected by an 30ma rcd and the generators earth and neutral are conected in the generator. Because the generator is under 5 kva, rcd...