Discuss Main bonding to Alkathene water pipe. in the Industrial Electrician Talk area at ElectriciansForums.net

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osg is out i looked at my mates today!...copper pipe of installation could be screwed to wall of house with copper/brass saddles or concreted into floor in places introducing an earth and also if gas is bonded and all pippework goes through a metal bulkhead of a boiler then there maybe an earth path
 
Ok...had my elecsa assessment today and brought up the issue of bonding water pipes...Assessor told us to do IR between copper pipe and an earth point(cpc in socket outlet in this case) reading was 0.07Mohms. If the reading is greater than 0.02Mohms(22000ohms) then the pipe is not an extraneous condutive part and does not need bonding.
 
thats still a prety low reading tho isnt it! if you got that across line and neutral you'd be thinknig its near enough continuous if you know what i mean! lol

i knoiw the regs are the regs but??
 
yeah I agree it is a low reading and if I had done the test beforehand and got that reading I would have thought it was extraneous...But he did quote where the figures came from ( i kind of wasn't listening at this point, just glad i did n't have to bond) :)
 

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