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Discuss bonding house into 2 flats? in the Electrical Forum area at ElectriciansForums.net

R

rapidrich

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hi im currently working on a house being converted into 2 flats they will both hav there own db theres going to be 1 water suply in but they will hav seperate gas supply....i will bond to the indevidual gas pipes but do i run bonds from both db's to the 1 water in ?another thing is the gas in runs up the outside wall into the property under the floor boards to a cupboard suplying a boiler so do i bond wer it enters the building (under the floor boards ? or wer it visable in cupboard going to the boiler? thanx
 
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A

acat

  • Thread Starter Thread Starter
  • #2
I would bond both properties seperately for the simple reason that if the bonding in the one flat is broken neither flat has an earth if you earth both you cant go wrong.

If I remeber correctly all bonding of meters should be within 600mm of the meter or where it enters the building. If Im wrong on that one someone is bound to correct me so keep an eye on your post

Chris
 
R

rapidrich

  • Thread Starter Thread Starter
  • #3
i think ur right about the 600mm i was just wondering about it being under the floor boards
i will bond the gas seperatly i just wanted to no if its ok to run bonding from each db to the same point on the water in ?
 
M

Mac

  • Thread Starter Thread Starter
  • #4
The gas should be bonded 600mm from where it enters the property.If it is under the floorboard and they have run a supply to the cupboard there should be access where they have already lifted the boards.:D
 
R

rapidrich

  • Thread Starter Thread Starter
  • #5
cool how about the running of 2 to the water in?
 
M

Mac

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  • #6
cool how about the running of 2 to the water in?
Is there a stop cock in each flat.I would take a 10mm from each flat and take it to the stop cock where it comes into the property.Where and how is the water fed to each flat.Are the electricity supplies fed from a basement or something.You still may need to bond the main water pipe coming in,without looking at it,it's a bit difficult:)
 
R

rapidrich

  • Thread Starter Thread Starter
  • #7
thers 1 stop cock in the bottom flat wich feeds the bottom flat and also feeds a tank in the loft wich will feed the upstairs flat i was going to bond it but do i bond it with the upstairs and dowstairs db's?
 
S

Spudnik

  • Thread Starter Thread Starter
  • #8
Agree with Mac, however, i would bond the gas where visible where it comes up through the floor.

"within 600mm or where practicable".
 
R

rapidrich

  • Thread Starter Thread Starter
  • #9
ok im just goin to run 10mm from the 2 db's to the 1 water in but now u hav thrown a spanner in the works jason do i go 600mm wer it enters the property or 600mm from wer it becomes visable?
 
S

Spudnik

  • Thread Starter Thread Starter
  • #10
ok im just goin to run 10mm from the 2 db's to the 1 water in but now u hav thrown a spanner in the works jason do i go 600mm wer it enters the property or 600mm from wer it becomes visable?
Personally i would do it where it comes up through the floor, if its right by the meter.

All bonding connections should be visible for future inspections.
 
R

rapidrich

  • Thread Starter Thread Starter
  • #11
the meter is outside off the property the pipe runs about three meteres under floor board b4 entering the cupboard ?
 
S

Spudnik

  • Thread Starter Thread Starter
  • #12
the meter is outside off the property the pipe runs about three meteres under floor board b4 entering the cupboard ?
If you can get under the floor then bond it in the meter box.

Try to feed the cable in to the bottom of the box and avoid going through the back.

Having said that, i have just done 2 flats and it runs about 40 meters around the block before it enters the building under the boiler.

I bonded where it came in through the wall.
 
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M

Mac

  • Thread Starter Thread Starter
  • #13
Personally i would do it where it comes up through the floor, if its right by the meter.

All bonding connections should be visible for future inspections.
I agree,but it's 6 of 1 and half a dozen of the other, but the gas still isn't bonded 600mm from where it enters the property.There maybe a tee off to the cooker if it has one and all connections should be made before any branches off the gas pipe
 
S

Spudnik

  • Thread Starter Thread Starter
  • #14
I agree,but it's 6 of 1 and half a dozen of the other, but the gas still isn't bonded 600mm from where it enters the property.There maybe a tee off to the cooker if it has one and all connections should be made before any branches off the gas pipe
See above^^:)
 
R

rapidrich

  • Thread Starter Thread Starter
  • #15
this place as been totaly gutted can access all areas has no celings are in these property's there is no t off's the gas supplys will only supply the boilers
 
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