supplies | Page 4

supplies

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  1. L

    Inspection and testing temporary supplies

    Hi all I have a contract starting soon to test temporary supplies on a construction site. The supplies are provided by mobile dbs with comando plugs and the supply is 110V. Would the testing be done with a PAT tester or physically testing inside the db? Would all circuits be 100% test...
  2. bigspark17

    Garden power and lighting supplies

    Been to see a job where a customer wants various lighting in a medium sized garden. Wall lights spot lights, decking lights, pateo lights socket along wall. Jacuzzi supply! I could wire from internal switch to outside adaptable box and take swa/hi tuff from here to lighting points and spur...
  3. D

    2 separate TT supplies into building?

    This gets a bit complicated so bear with me. Basically i have 2 rural tt supplies. One is to a large farm shed with PV solar 3.6 kw on the roof and is not used much. the other is a large house and pub combined which has a shared supply transformer with a nearby bungalow. I m not concerned...
  4. S

    Why don't we use isolated supplies in our homes?

    I'm sure most people here know that shaver sockets have an isolating transformer inside. This means that should a person come into contact with the live conductor and earth, the risk of electrical shock is greatly reduced because the secondary side has no reference to earth. My question is a...
  5. T

    Control Panel Isolation question

    :banghead:Hi all Just a question on isolation on a control panel which has contactor and overload set up for a small pump. When the main isolator is off parts of the auxilary side of the overload was found to be still live from another source. Would this be covered by BS7671 or are there...
  6. S

    Distance Between Supplies

    I wonder if someone can answer a question for me . We have to install a new dis-board in a property that already has a landlords distribution equipment installed . The landlords distribution equipment has its own service head and earthing arrangement . We wish to install a new supply taken from...
  7. K

    Supplies to new build 8 flats

    Hello all I am just starting a new job with 8flats and communal car park job is in south gate london and supplier is asking for a200 amp isolator and 12 way ryefield meters are to be housed in intake room with swa distributed to each flat Will I need to install switch fuses for each supply...
  8. E

    Supplies for 12 new build flats. Advice request.

    Hello all, Ths is my first post and I would appeciate any advice on a new job I have started. I have an initial installation of 12 new build flats over 4 floors on a site in Plymouth. This is new to me as I have only ever done houses before. The incoming 3 phase supply is a 95mm 4 core...
  9. I

    PME & TNS supply in same building

    Hello all, Have been doing some work in a large building complex, the original building has a TNS supply but the large extension to the building has a seperate PME supply. At present there are no main protective bonding conductors to water/gas/oil and these services are common to both old and...
  10. J

    Sprinkler Pump Supplies

    Hi, I have a question about dedicated sprinkler supplies if anyone has any experience with them. Here is the set up. DNO's Three phase heavy duty cut out with 200A fuses. 95mm2 XLPE single core tails in galv trunking to the incomer on a 200A MCCB panel board. A sprinkler system is to be...
  11. I

    6 x 1 bed flats two Three Phase supplies?

    Hi Guys, I'm currently tendering on two separate projects which are two blocks of 6x 1 bed flats I am fully redesigning due to all of them eventually being sold separately sold and metered ill give you an overview of the two projects and my thoughts of the distribution aspects any thoughts in...
  12. J

    2 supplies into same building, earthing.

    Hi guys Im after some advice on an installation im doing some work on. The installation has 2 supplies into the same building. The supplies are side by side and both TPN, one 300A and the other 200A. They are TNCS and supplied from the same tx although im unsure if its PME or just TNCS as there...
  13. E

    Flat supplies and multi head installations, help please

    Hi, in the process of wiring 4 flats for a customer(new build). Have wired flats in past and if I needed five supplies, uk power network would install 5 supply's with cut outs, I'd normally come from these to a fused switch and then off to each flat with a suitable swa cable. Uk power networks...
  14. dnjr

    Economy 7 water heating

    Dear all This may be a stupid question so have flame proof trousers on I'm doing a refurb at the moment No gas at the property so hot water is electric Plumber is putting in a new dual immersion tank and the property has economy 7 I was going to run two supplies to the tank . One to the...
  15. GMES

    Selling electrical supplies

    Just wondered if any of you sold electrical materials ie- tie wraps, insulation tape, cable etc etc. I know we all sell to our customers has part of a job we are doing at any given time but I mean more like on websites and ebay etc. With me being mainly industrial I do already have several...
  16. N

    0.00 ohms r1+r2 on radial circuit?

    Hi all, I've tested several radial circuits and only getting 0.00 ohms on the r+r2 test (zero'd leads) 2 of the radials only supplies one socket each and are approx. 3 metres in total length. (zs 0.25 and 0.21) Another radial only supplies one socket and is appox. 5m in length. (zs 0.35) The...
  17. The Solar King

    Biomass Fuel Supplies

    Hopefully the children have all gone to bed and there can be serious discussion of this. The rules on sustainability and registration of supply will have quite a number of implications. It may also deter some of those I have had heresay of. There have already been bad experiences with the...
  18. H

    Temporary Building Site Supplies Fed From Generators

    Gents(and ladies), I am undertaking a larger and larger amount of temporary building site supplies from generators, and from the mains also. If anyone can point me towards any relevant documents regarding design/ installation and especially testing, anything that will enhance my knowledge, teach...
  19. bigspark17

    two dno supplies

    I have a church with living quarters they used to be two seperate properties. Two dno tn-s supplied into either end of each building.! There is one boiler to do the lot, one water supply one gas supply. The boiler is supplied via one dno but main bonded via the other dno supply.! Any thoughts if...
  20. driverman

    Pfc - pscc on 3 phase supplies

    Hi, Guys,when measuring PFC-PSCC on 3 phase supplies,I know that you test between live conductors L1-L2, L1-L3, L2-L3 and then all 3 to Neutral and note lowest reading obtained. Then all 3 phases ( is that right term for C&G? ) to earth. Then neutral to earth and lowest reading obtained recorded...

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