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  1. Richard Burns

    Lewden Control Gear Direct no longer manufactured?

    I have just heard that Lewden / Control Gear Direct have stopped producing their circuit protective devices as of 13th May, is this anything anyone else has heard of or can confirm? I have used a fair number of their consumer units and RCBOs and will be nonplussed if I now have to tell customers...
  2. Richard Burns

    Pennychew's 18th April competition question and answer

    Following on from the completion of Pennychew's competition I thought it may help to provide some more feedback on the question just to help clarify for those still feeling short on information. I will try and split the question and answer over multiple posts so as to keep them separate. So...
  3. Richard Burns

    Ideas for approaching Fault Finding

    Paul M has suggested an earlier post I made should be more readily available so an edited version is posted here for your reference. Thanks Paul. Just my thoughts on what and how you may be able to approach and break down electrical fault finding. Always remember what training you have...
  4. Richard Burns

    AMD 3 Zs tables and GN3 and OSG corrected tables

    For reference these are the Zs tables from BS7671 Amendment 3, provided by Amberleaf. I have cleaned up the scans a bit which is why they may look a bit odd round the edges. Remember IET have also issued the corrected tables for the latest GN3 page 121 table A4 and OSG table B6 which are...
  5. Richard Burns

    Wanted 20A MEM QLCS fuse

    Would anyone have available one or two 20A MEM fuse holders, either the rewirable or HRC ones with the horizontal blades. I think they are QLCS or QLRS as a number. They look like the above, but with the nice yellow dots! If you have I would be glad to buy them as I need to replace one on an...
  6. Richard Burns

    How far can reality be allowed in diversity?

    Similar to the two showers thread, sorry. I have been asked to supply a sauna (4.5kW) and electric shower (7.5kw) lights and sockets (using an oil filled radiator) to an outside room. The supply is TNS, 80A (presumed) and the existing split board has 3 RFC, 3 light circuits, 1 immersion heater...
  7. Richard Burns

    Wylex NN board can it take an RCBO?

    I think I may know the likely answer here, but.. does anyone know if it is possible to fit an RCBO into an old Wylex NN914 board? Board is some thing like this (though plastic not metal clad) looking to replace an NB30 breaker: I am thinking it is very unlikely and will probably need to use a...
  8. Richard Burns

    Twin output bathroom downflow heater

    Does anyone know of a bathroom downflow fan heater than can be switched between two different heat settings whilst in use. The customer has asked for one but I feel that exposed switches are unlikely in a bathroom, however I have seen a review that said there was one available by pull cord...
  9. Richard Burns

    Comparison of building regs and Approved document P for "special location"

    I was just reading the Building regs (as you do when you are a very sad person:drunk:) and there is a difference in the definition of special location for bathrooms; the building regs state it is within the zones in BS7671, and approved document P states that it is the entire room. This may...
  10. Richard Burns

    Banned! Moment of panic

    Just opening new threads to read and got this message: vBulletin MessageYou have been banned for the following reason: No reason was specified. Date the ban will be lifted: Never Slight moment of panic, what have I done!!!!!! I think it was just my PC and opening too many windows at once...
  11. Richard Burns

    Mixed earthing arrangements

    Mixed Earthing Hi just wanted to ask some advice on (Sorry) earthing and bonding where there are mixed earthing arrangements. Situation: There is a TNCS house with an newish extension which has a TT CU fed from the supply by 6mm 3c SWA on which the third core has been cut short. The armour...
  12. Richard Burns

    4 30mA RCDs in series!

    I have just fixed a fault today on a 2 year old install where there was a 30mA RCD from the tails feeding to a remote twin 30mA RCD board feeding a 30mA RCD garage board in an outside office feeding another 30mA RCD garage board in another shed! Discrimination whats that? I did not test the...
  13. Richard Burns

    New GN8 book

    At last, eleven months after ordering I have got the new version of GN8 Earthing and Bonding Right what did I not know before that I can learn! Nice to have some bedtime reading!
  14. Richard Burns

    Hall Effect sensor

    I am having problems with a home built magnetic water level sensor using a reed switch, whereby the reed keeps sticking or failing to operate and I was thinking of using a hall effect sensor and a power transistor but I am unsure of the characteristics of hall effect sensors. Are they...
  15. Richard Burns

    Washing machine brushes

    Slightly out of range but I have had a problem with my washing machine and checked the brushes (which were fine) and think I put them back left right and right left; the motor was whining a lot on running and the brushes sparking a bit but the spin cycle seemed to calm it down! I was wondering...
  16. Richard Burns

    Power cuts (slightly on topic) annoying

    Do you find that it is more annoying having a power cut when you are an electrician? I have just had a 1 minute power cut and found it irritating that with all this capability available ( I mean the forum, not me, of course!:thinking:) that I can't do anything!
  17. Richard Burns

    Venus Transit of the sun - too cloudy

    Any astronomers here who have any clear skies for tomorrow? For the last time for 112 years Venus will transit across the face of the sun at dawn tomorrow and it is clouded out! I saw the last one by nipping out of a meeting early but I don't think this will help this time, sorely disappointed...
  18. Richard Burns

    Drilling down stud wall

    Totally fed up with this one. Any thoughts on hole drilling to run cable down a stud wall, I cannot get a straight line through. I am trying to run cable from the loft down to the CU in the hall. I have drilled down 1.7m and can take the drill bit up 1.7m and the total height is about 3m. I have...
  19. Richard Burns

    Two light switched lines in same cable

    Just a quick clarification, I am thinking of replacing a T&E switch wire with a 3+E switch wire as an easy way to convert a single light switch to a double light switch without ripping out the wall. This would mean that there would be two cores as switched lines, one for each light. I am fairly...
  20. Richard Burns

    Shared neutral? no swapped line, Doh!

    Feeling a bit stupid, had a new RCBO tripping on a lighting circuit and spent two hours checking cables and removing loads of downlights looking for damage before realising it was split over two circuits, spent another half hour investigating how I could supply the two wire three way switching...

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