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  1. yellowvanman

    Cooker/Hob circuit

    Customer asking for a quote to re-vamp kitchen. Got some high end ovens/hobs: Hob: 7.2kW Oven: 3.7Kw Steam Oven: 2.9Kw Warming Drawer: 0.81Kw She has told me other electricians have said another cable needs to be run for all this. Problem is that the CU is full, is build into a small...
  2. yellowvanman

    Safe Zones, 230yr Old Cottage

    Used it a number of times on really old buildings, I'd recommend. Not too difficult to use and no overly expensive. Only limitation is that the MCB should be more than a 32A Type B. Not really a limitation in domestic.
  3. yellowvanman

    Electric Radiators for an Office Environment

    Is that different from any other company? Recently had this problem with Immersun! God knows how many issues with Solar installers!
  4. yellowvanman

    Sockets in the middle of a shop floor

    Yes I need to come from above but roof is sloping and 4-5m high, would need scissor lift etc. but work benches are all in place and shop floor fully working! Has anyone used unistrut/cable tray on posts secured to floor? I think this is what the customer had in mind! Is it possible?
  5. yellowvanman

    Sockets in the middle of a shop floor

    Solid concerete floor - I think chasing into it is a no go. Customer expecting some sort of overhead passage of cables.
  6. yellowvanman

    Sockets in the middle of a shop floor

    Customer wants a number of sockets to work benches in the middle of a 'largish' shop floor. Walkways all the way around, high ceilings. I'm sure others would have come across this sort of problem, would appreciate some ideas!
  7. yellowvanman

    EICR Observations

    Re ring length. I refer to Table 7.1(i) OSG - max length of 32A B type - 106meters. Loading is not heavy so in practise volt drop shouldn't be an issue, but needs mentioning as far as I'm concerned. Thanks for comments
  8. yellowvanman

    EICR Observations

    Zs is OK, 1.14ohms.- anyway got a rcd. The issue would be volt drop - this was brought up once on one of my assessments!
  9. yellowvanman

    EICR Observations

    Would like to get other opinions on the following observations of a property that was rewired 10 years ago: 1) Excessively long ring - r1/rn/r2 = 1.56/1.56/2.48 2) Mismatch of RCBO - Hager RCBO in Legrand CFU with othe rLegrand MCBs
  10. yellowvanman

    Radiolink smoke alarms in holiday let?

    Finished 1st fix in a new holiday let and for one reason or another forgot to wire in a supply for the upstairs smoke detector. Thought it shouldn't be a problem to use a battery one with Radiolink. Sharp eyed Building control guy noticed smoke supply cable missing and said can't use Radiolink...
  11. yellowvanman

    4Eco/Immersun Stops Trading

    Automated message when you call them!
  12. yellowvanman

    Earthing Stainless Steel Bench?

    I would have thought this is similar to supplemenatry bonding in which case 544.2 applies.
  13. yellowvanman

    Ring Main resistances

    Haven't got Yellow OSG with me at the moment, but Table 7.1 (i) of the Green OSG gives some maximum cable lengths for ring circuits with varying protective devices, so in effect giving max r1, rn & r2. I guess the Yellow version values with differ from the Green book due to the new 0.95 factor!
  14. yellowvanman

    Cutting corners or acceptable practice?

    , Sorry Yellow book in van, was looking at Green book. I still go back to 414.4.5, where it says basic protection is not required for ELV. Example of that are ELV lights that straddle 2 catenary wire supply lines, where does that come under 559.5.1? Lets agree to disagree!
  15. yellowvanman

    Cutting corners or acceptable practice?

    I don't disagree with the opinion that the original photo is not good and its not the way I would do it, but there isn't anything as far as I can see that it conflicts with in the regs, as it is ELV. Not sure your references are applicable: 526.5 - I appreciate that the voltage range of a live...
  16. yellowvanman

    Cutting corners or acceptable practice?

    414.4.5
  17. yellowvanman

    Installing brick lights for the first time

    How you going to enter 2 SWAs into 8 of the fittings and keep continuity of SWA (earthing)? i assume your're not going to run a cable to each fitting. Alternative is to have a joint box (wiska?) on the rear of the wall, run SWA loop in/loop out and run a piece of flex (if situation allows)...
  18. yellowvanman

    to bond or not to bond

    Not aware of how GN8 defines how the measurement is made, but from an ECA publication it states: 'Using a 500 volt DC insulation tester, measure the insulation resistance between the item and the main earthing terminal. If the resistance value is 23 000 ohms or greater, and inspection confirms...
  19. yellowvanman

    to bond or not to bond

    Thats a helpful response! Are you aware of a specific instrument that has the necessary resolution, when using a 500V insulation tester? If so, I would be interested in what it is.
  20. yellowvanman

    to bond or not to bond

    The other problem is how do you measure 6.7kΩ as opposed to 22kΩ. Most insulation testers have a 10kΩ resolution at these levels of resistance, my Fluke's lower limit is 0.02M, lower than that it displays 0.00!

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