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henley

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  1. D

    Strange Monitoring via a Henley Block !!??

    Right, I've been struggling with proper monitoring now for sometime, but seemed to have partly solved this now ...... however, it isnt exactly right on a conditional basis - can you experts point me in the right direction why this is happening; OK, the tails are split straight after the DNO...
  2. N

    Sub board from sub main

    Hi, I have quoted up a job and would like to know if anyone can see anything wrong with my design. From the 100A main cut out the tails go to an 80A switch fuse and out of there to consumer unit. I need to run a sub main to provide another consumer unit upstairs,whiere there is a possibility of...
  3. D

    25mm and 16mm tails in same Henley block?

    Hi, i've ran a radial into an extension. There are no spare ways on the existing 3036 DB. All the circuits are doubled up in fuse holders anyway and i want to leave that board well alone. I'm gonna put a new 2 way DB in to feed this radial. The existing board is fed in 25mm tails straight...
  4. M

    main switch

    Hi all Is there a regulation in the bgb that states you cannot come off the main switch to feed another db, not that I want to do this I've just come across it being done today
  5. D

    Bit of help with meter setup

    Ok new hobby of mine is checking customers DNO supplies and getting a feel for whats what...... hopefully you guys could help me understand whats going on in this pic.... So im guessing the meter on the right is Eco 7.........whats the little sealed block on the left next to the two Henley...
  6. T

    can i use henley blocks in ceiling?

    i have 25 mm swa suplying cu in top flat, i want to put in 80amp type s 30ma rcd to protect cable and time delay. problem i have is cable route is onto existing ceiling which will be lowered and pipe work in way to rcd so i was thinking of connecting to henley blocks in ceiling then down to rcd...
  7. rich.250

    Meter and Henley block blanks.

    Hi guys, Does anyone know where I can get the above?? I have seen meter fitters use them a lot. A little push in blank that is secured by terminal screw..... Thanks in advance
  8. G

    sub boards

    Hi guys, Need advice. Have a 2 DB's both fed from meter(2 feeds coming out of it) each one goes through a 60 amp fused isolator. The 2nd DB has only 3 lighting circuits and a ring main. total wattage would be approx 3kw. Need to install 9kw electric boiler but cannot get to either of the...
  9. O

    Todays EICR - can you spot the mistake?

    Ok, so where do you look first when you do an EICR? I always start by looking at the CU and incoming supply: Suggestions?
  10. M

    Henley incomer

    Does anyone know the BS number and charateristics of the big square henley incoming fuse used by the supply company. its about 6 inch square with side entry for the supply cable system is TN-S. There is no info on it and i take it the main fuse is inside its sealed so dont know the size. any...
  11. S

    PV on a builders supply

    As many of you know, I'm not an electrician so please go easy on me. Do a PV on a new build etc. Customer told me the electrical connection was going in so we were good to go. Turned up yesterday and all he has is a builders supply and wants us to tee into that. The is a consumer unit up but...
  12. O

    what's the name of that conduit sealant?

    Evening all, can anyone tell me what that sealant stuff is called that you use to seal ends of conduit when space is left around the cables? cheers Odigi
  13. H

    Henley Block between meter and main switch

    Hi quick one if you come across the meter tails coming from the meter to a henley block then from henley block to main switch on consumer board, if you replaced that consumer board would you still need to remove main fuse or could you just disconnect from henley block and leave fuse intact...
  14. G

    Cable ratings from henley blocks?

    Hi there, I've been to look at a job today were the occupier has recently moved in. Before he bought the house he had a pir done which came back good bar a couple of things that were put right. The supply is pme 25mm tails and 16mm earth 80a bs1361 henley cut out. after the meter the tails go...
  15. S

    terminating into henley block

    Hi all, looking to install a jacuzzi for a friend of mine, but his fuse board doesnt have any room left, so was thinking of cutting into the main cable leading to the fuse box with a henley block, then running a 10mm cable to a 63amp rcd, question is what type of cable should i use? as...
  16. A

    T+ E in Henley.

    Hi all, Just a quick question, have any of you guys (gals) ever seen T + E (10mm in this case) in Henley blocks before, and if so, (don't think it is but) is it allowed? Cheers Ashley
  17. J

    Bonding gas elec to henley MET or CU.

    Is there a prefered method to bonding gas.elec to earth. a) Incoming earth to Henley block, bonding to gas/water back to henley, 16mm to CU b) Use CU as MET, with incoming earth to CU and the running bonding to gas/water back to CU. secondly, does an 800kmf need an earth connection? i.e can...
  18. spark-ticus

    how to correctly install henley blocks to supply 2nd consumer unit

    I am putting lights and sockets in an extention for a customer and the currrent cu is full, so, my plan is to add a 2nd cu for the extention. It seems the most popular idea is to use henley blocks and split the supply, which i understand no problem, my question(s) are : 1) Do i need 2 extra...
  19. T

    Henley Block in meter cupboard

    Hi all This is my first message in the forum. I was wondering if it is ok to fit a henley block inside an internal meter cupboard then exit with 2 sets of tails vertically out from the top of the meter cupboard. Further more would I need to use stuffin glands to secure cables exit from meter box.
  20. R

    Preferred method of installation

    Had a look at a job the other day, client has brought a MK RCD Garage CU and wants it connected up. Supply is TNC-S with a 100mA RCCB protecting a BS1361 fuse board which has MCB's Option 1. Replace the RCCB with a time delayed RCD and connect garage CU to new RCD Option 2. Henley block the...

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