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roman

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  1. M

    Repeated underground cable fault

    Having worked in America with their weird systems,thought I'd seen it all,but this has got me puzzled,a rep[eated failure of a cable at 33kV supplying a house and dairy,the cable of a type used by Country Energy,is rated for 132kV,400A per phase,supplying a 433-250 400kvA transformer.The cable...
  2. M

    Busbar 'ductor' testing

    Just been asked to carry out a busbar 'ductor' test on a new busbar installation , I understand it's a form of low resistance test checking the joints etc... But have'nt a clue how to test it ?! I know you use a 'ductor' tester but that's about it ! any tips or help would be much appreciated lads
  3. D

    Charity Jobs

    Seen a guy do a free job on here over weekend and got me thinking how many other people do free jobs for the needy, I'm thinking of doing a couple if jobs a year for free for those who I think genuinely need it, If I got spare parts and spare time I think I could manage make someone else's...
  4. D

    Three Phase Board 230V

    Just after people's opinions seen this a few times and although not incorrect still makes me think: Three phase board 8-12 ways usually linked out to run on a single 230V supply. Seen second hand boards converted using bus bar to make in affect a 36 way single phase board. Always have been...
  5. M

    Circuit design

    Hi, after abit of advice. Wanting to install a new aditional circuit for a lathe. Technical info on label says this lathe runs at 3 phase, 2500 rpm 54A. There are already Lathes installed with same spec but circuits installed to run these are currently BSEN 60898 type b breakers, using 4mm...
  6. T

    Floating earth - generators

    Evening gents, i was wondering if anyone had any links or if someone could explain in leymans terms Any information about floating earths in generators, never had any experience in them and hate not knowing things when they could come in handy one day!! Doesn't have to be any specific just a...
  7. A

    3 Phase meter reading correctly?

    Hi Customer has a Polyphase Energy Meter, connected to the incoming 3 phase supply. Her bills are a bit high, but I was wondering as she is only using 1 phase, is there any value (ie cheaper bills) to spreading the load over the other phase's? Any thoughts appreciated
  8. A

    all this rubbish about "volt drop"

    the little boys on here worry about a bit of volt drop a few volts it happens all over the world children what the heck wrong with with a bit of volt drop? things still work thats all that counts
  9. S

    Voltage optimisation technology? any experience? thoughts?

    we had a site visit the other week by a sales rep and an engineer of a company wanting to sell us a 'voltage optimisation unit' for the factory. They have today sent me through a proposal. They have contacted our electrical supplier, and obtained our site voltage profile for the last year. What...
  10. R

    Taking out the Cut-out fuse

    I went to the NICEIC Live day at Epsom last month, and Tony Cable, in answer to one of the questions, said that SSE had given specific Domestic electricians permission to remove the cut-out when, for example, they are replacing the Consumer Unit. Can anyone tell me if this has been done and if...
  11. N

    Max PSCC 1 phase and 3 Phase

    Hi all. Prospective Short Circut Curret. Now , if you measure the impedance on a installation P to N , and get a reading of 0.21 OHMS , the max current flow between these two points P and N will be 230/0.21 = 1095A.....1KA. Now if you have 3 phases , and each are the same impedance P to N ...
  12. T

    Job interview for apprentice HELP

    Hi guys. I recently applied for a electrical apprentice and luckily a letter for an interview came through. Now I'm currently 19years of age studying my 2330 level 3. Into the end of my course. Would that not make me too qualified to be a apprentice. Just needs some information. What does I...
  13. B

    16 th edition board

    Im doing a job in a 10 year old house nothing major just extending a cooker circuit and adding a few downlights. the cu has the rings on rcd with two spare ways, can i simply put the cooker / lights mcbs onto the rcd side ? sorry for the amateurish question :yes:
  14. H

    Caught Lofty in East London

    Directly above a cooker and hob. Niceeee
  15. ebow72

    Job's a Good 'Un

    I've not posted on here for a while and debated whether to with this or not as I don't want to appear to be gloating etc. But it's far from a gloating post, more of 'you can do it'..... But here goes anyway.. The moral of the story is really one of don't give up at all no matter the age or knock...
  16. P

    Old switches

    I've come across this switch on a rewire and with abit of tlc I think would look nice in my outhouse :) It there any current regs tho that won't allow this?
  17. R

    scam warning

    BE CAREFUL IF SHOPPING IN ASDA OR TESCO'S Just had this forwarded to me...................be Carefulout there Over the last month I have become a victim of a cleverEastern European scam while out shopping. Simply dropping into Asda for a bitof shopping turned out to be quite an experience...
  18. R

    Ac dc voltage

    I am trying to measure the voltage at two wires for a brake on a motor The supply comes via an inverter and via a computer This machine was bought with the motor missing and the motor supplier has asked if the supply to the brake is ac or dc Have measured it with two different meters and they...
  19. A

    voltage optimisation in industry?

    Hi I looked in the forums for voltage optimisation And saw that at home, the average saves from voltage optimisation is around 8%, Do you know, what is the average save in industry? Thanks
  20. S

    Ancient Supply Cable and Fuse

    Hello, I have just joined the forum. I'm not an electrician (I'm a doctor) so please forgive me if my terminology is not correct. I'm starting this thread as I thought it might be of historical interest to some members. Unfortunately I'm not allowed to post pictures yet. I am going to have...

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