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  1. C

    3 phase dB and eddy currents

    Recently started a retrofit where the 3 phase dB has been fitted with bushes through the galv trunking. The single phase supplies outgoing have been separated and lines pulled through one, neutrals another and the CPCs through the last one. My supervisor says this is ok, as it is a 3 phase db, I...
  2. D

    Eddy current clarification

    hi all, What are your thoughts on how the 6231 cables been terminated? Will aluminium cause eddy currents? Thanks
  3. D

    Eddy currents in metal trunking

    Hi all. I am installing some metal trunking vertically in a meter cupboard to contain all the meter tails for an apartment block. I have 5 sets of tails entering one “row” of meters, and about 300mm further down the trunking I have another 4 sets of tails entering the other row of meters. Due...
  4. B

    Query about eddy effects

    So Allianz insurance inspector has pulled up a C3 ( I know it’s not mandatory) about magnetic effects from a circuit. so we have a small 9-way board with cables entering via galvanised trunking and thru 3 20mm couplers. They’re all single phase circuits but he’s highlighted one circuit that...
  5. cliffed

    Eddy

    Just found this on another forum… no comments on the actual pic…this can’t be right can it?
  6. L

    UK Eddy currents??

    After a bit of advice. Have a 630A MCCB feeding a DB, it's fed with 4 x 300mm single core, non armoured HO7 cables and a 185mm earth. The DB is GRP and plastic compression glands have been used. The main panel has an aluminium gland plate and brass A2 glands have been used, however, the lock...
  7. einstein

    has anyone seen eddy current in action?

    Any good storys?
  8. Pete999

    Eddy Currents

    Just a thought I would appreciate some comments on. I was at a loose end the other day and ended up watching some guy on you tube talking about Eddy Currents with regards to metal enclosures especially domestic Consumers units. On no I hear you say not amendment 3 again, but stay with me...
  9. C

    Separately Run PVC/SWA/PVC Cable for 75KW S/D Starter Motor Create Eddy Current?

    Dear Members, Seeking your view to assess a risk for replacement one length of PVC/SWA/PVC Cable. Back Ground: A 90 KW Motor is connected to Star-Delta Starter in MCC at a distance of 200 meters, by 2 runs of 3-core70 mm2 PVC/SWA/PVC cables buried directly underground. One length having an...
  10. S

    Eddy currents

    A 3 phase DB has been wired with 3 X 25mm lock nut and bush into steel trunking, The ballbag has taken earths in one, neutrals in another, and phase conductors in the 3rd. As im missing this bit of technical information, Do you get eddy currents if you have 3 phases going in one hole, or just...
  11. C

    Eddy Currents

    I vaguely remember an illustration in one of my books showing 3 phases of a supply entering metal trunking seperately, and the words ' THIS ARRANGEMENT IS NOT PERMITTED' emblazoned beneath it. However I have been going through all my books and cannot find it..... Anyone know what I'm on about?
  12. W

    Eddy Currents affecting energy check meters.

    Hiya everybody I'm a long time reader first time poster of this wonderfull forum and I just wanted your opinion on Eddy currents? I was asked to test some electricity meters on a static caravan park recently as the owners were complaining about their bills, and whilst i was in the meter...
  13. Brightspark2

    A solution for eddy currents

    Need to provide a 3 phase supply from an MCCB board to a changeover panel. The MCCB board and changeover panel are side by side connected by 3 x 50mm brass bushes. The brass bushes have around 13inches (In old money) vertical between them. Now we can only get 2 wires through each hole (120mm...
  14. T

    Eddy curents

    I've just been told by a plumber that I can't set more than 4 times in my 2 by 2 metal trunking as this would cause eddie current to ocur is this true If so how do I get around this if I need to set my trunking 6 times any suggestions guys?

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