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  1. V

    Large Quantity of Wylex & Crabtree RCBOs

    Excess stock for sale after moving on to new job... All brand new and boxed: 28 x Wylex NHXSBS1C06 6 Amp Type C RCBO (6kA) 16 x Wylex NHXSBS1C16 16 Amp Type C RCBO (6kA) 5 x Crabtree Starbreaker 61/C10630 6A Type C RCBO (6kA) 12 x Crabtree Starbreaker 61/C11630 16A Type C RCBO (6kA) 6 x...
  2. sjhall

    Core drill recommendations

    Any of you lads use a dedicated core drill? Any recommendations ? Been looking at the Bosch gdb1600 so far. Cheers
  3. C

    Wanted large quantities of used MCB, MCCB and ACB

    If anyone has any items they stripped out and would like to sell please contact me. Only large quantities considered. Any make as long as in good condition
  4. E

    LED downlight to fit existing large cutout

    Hi, I am wondering if anyone knows of an LED downlight that fits an 80-90mm cutout, the existing 12v halogens have melted so I am replacing with LED, have had a good look on hte internet and asked Cities and they weren't conclusive! Does anyone know where to get hold of some for around £50? Thanks
  5. B

    Job interview tomorrow

    As above, nerves are starting to kick in a little bit. Quite a big step up for me, would involve me looking after 12 sites in the north west for a large multi-national company. Anyone got any tips for interviews. Having worked for the company I'm with now since serving my time, I haven't had...
  6. S

    The large companies leaving the JIB

    When I was working on the Westfield Stratford City Development last summer, some of the sparks that were working for Tommy Clarke's told me that they and the big boys (NG Bailey's, Mathew Hall, Balfor Kilpatrik and someone else the name escapes me) were leaving the JIB so that do not have to...
  7. B

    SPD in large switchgear

    I was assembling a large distribution unit today. Hager type with a 500A main switch. There are 10 x 100A MCCBs going to be installed The board, MCCBs etc came in a kit, which also had a surge protection device with it. The client did specify the nee for the SPD however the SPD itself has...
  8. B

    Wiring large industrial DBs

    got quite a few large scale industrial DBs to connect up in the coming weeks. Have done a good few in my time and like to keep them as tidy as possible. i usually use the square cable tie bases to tie the cables to the inside of the DBs but thought I would ask you guys if you have any tips to...
  9. S

    Commercial Project

    Hi everyone, I have a customer who wants rough pricing on a potentially very large commercial system. I am thinking the best way to provide a rough estimate is just to base the (rough) cost of the job on the return on investment expected. Although i haven't installed any large systems yet so...
  10. C

    Condition report for large installation

    The inspection schedule form is for domestic and installations up to 100A. Is there a form for larger installations or do you basically have to create your own ?
  11. F

    Large scale advice - 7 Degree pitch

    I'm pricing on a factory for 50kWp install with 7 degree slope but east west facing roof. I was wondering if it was feasible to install a flat roof system by positioning the arrays facing South? The plans only hit my desk this afternoon and want to hit the ground running so advice would be very...
  12. A

    Large PV Contract in the Cambridge area

    We are currently negotiating a deal to install up to 4kWp systems for a social housing company in Cambridgeshire. We are going to be looking at between 300-500 properties, so will need MCS accredited install teams to help with this project. please e mail [email protected] to register your...
  13. Mark42

    Large number of 13A sockets in a steel building: Design considerations.

    This weekend I’m installing 20 2-gang 13A sockets around the inside walls of my new 20m x 8m steel building. These are only for small car battery chargers, so total continuous load will be trivial. Plus one fused connection unit (directly in the ring) for the electric shutter at the far end of...
  14. sythai

    large underfloor heating..... advice + pointers please

    After any pointers/ advice please/ is it possible.... Off to look a job later on, underfloor heating install. But it's Slightly bigger than my usual bathroom mat I may put in from time to time. I've got a couple of large areas to price/spec up around about 30-50m squared each - lounge and...
  15. ringer

    Books for sale, one large, one small, both with nice red covers

    Books for sale, one large, one small, both with nice red covers :D Available from tomorrow (1st Jan 2012)
  16. W

    Large stables, agricultural installation experts advice saught

    Hey chaps i have to return a quote for a job installing supplies for 3 buildings on a site, incuding 2x stables and a general storage building, the demand is not too much 50A max, only really general lighting, small power etc SPN 100A TT, all submains will be via a single 300mA 'S' rcd at...
  17. B

    voltage drop calculations

    I have been asked to connect up a mobile home on a large transportation site. The run of cable is approximately 250meters. In the regs book for 25mm armoured cable there are three values x y and z which one should I use
  18. W

    Bibliography about medium voltage systems

    Hello, new in this forum. I want to ask something. Because i am new in the field of photovoltaics and i know only about systems in low voltage ,i have done about 10 10kw systems only, i want to ask if there is any bibliography about large scale systems. I want specially a book with all technical...
  19. P

    Slightly high Zs on large ring circuit

    Hi all, I did a PIR yesterday at a largeish house (150m2). there is only 1 ring final circuit for all house sockets. Zs was 1.25ohms, vs 1.16 permitted maximum value. there is an RCD so additional protection in theory although the RCD did not disconnect at 5x 30 ma test. I will obviously...
  20. S

    pricing a large 3 bed re-wire.

    Evening lads. Most of my work in new build installation but i have been asked to price for the above job. Its a large 3 bed detatched house. its going to have an up and down stairs ring circuit (3/4 sockets in each bed, 1 socket in hall and another on landing, 6 twins in lounge). it will also...

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