7. GROUNDING AND BONDINGthe water pipe or the ground rod connector. 7.1.10 Only zinc-coated, HDPE type connectors shall be used on iron water pipe. 7.2 Bonding 7.2.1 Bonding shall be done in accordance with the National Electric Code. All metallicElectrical hazards working with metallic and plastic …Electrical hazards working with metallic and plastic pipework Background An rentice Pluer and his…
23/8/2011· Metal water pipe in contact with earth for 10 feet or more must be used as the electrode, 250.52. Interior metal water pipe installed in or attached to must be bonded 250.104. Two separate requirements two different methods to achieve these requirements.
Generally with plastic pipe installations, supplementary bonding of the pipes is not required. Note however it may still be required between the earths of, say, lighting and power circuits if they are both accessible in the room.
For example; a ‘plastic’ supply water pipe entering a building goes up to the stop tap where it is then copper pipework throughout the rest of the building. lying this regulation there is no need to run a protective bonding conductor to this pipework.
Figure1: Supplementary bonding in a bathroom - plastic pipe installation Notes 1. Metal (class I) items of equipment Puhui Pipe manufacturer in China 3 Plastic Plastic Metal Metal Hot water pipes, central heating pipes, earth terminals of class I equipment and accessible exposed-conductive Puhui Pipe manufacturer in China
In the past, it was common to connect the earth wire (green/yellow wire) of an appliance to the water pipe. But now we were told to connect it to the earth pin of the power plug, instead. But, why can''t we use the water pipe anymore? Currently, I am installing a new Puhui Pipe manufacturer in China
27/1/2017· In general no requirement for earth bonding with an all plastic pipe installation, but there are some areas where if you have metal pipe sections and electrical equipment (like a water heater) you still require main bonding. There''s a useful paper that Hepworth sent out, and that is now buried on their website about this.
Most s will need 16mm bonding into the fuse board and 10mm to the water and gas. The earth cable is green and yellow. I always try to get an earth bond to gas and water unless they are entirely in plastic. We recommend the fuse board has one or Puhui Pipe manufacturer in China
the water pipe or the ground rod connector. 7.1.10 Only zinc-coated, HDPE type connectors shall be used on iron water pipe. 7.2 Bonding 7.2.1 Bonding shall be done in accordance with the National Electric Code. All metallic
23/3/2011· Any metallic water pipe that qualifies as an electrode (10’ in contact with the earth) must be used as part of a GES (grounding electrode system) since it’s considered present by the NEC. That connection to the system must be within 5’ of it’s entrance into the structure and it must be supplemented by at least one other electrode.
Earth electrodes are in different shapes like, conductive plate, conductive rod, metal water pipe or any other conductor with low resistance. Earthing Lead : The conductor wire or conductive strip connected between Earth electrode and Electrical installation system and devices in called Earthing lead.
3/1/2014· Where there exists a water-pipe electrode, bonding would be covered by the GEC (if piping system is electrically continuous). Don''t forget, not just the supply line can qualify as a water-pipe electrode. There could be an underground line running say to another
Electrical hazards working with metallic and plastic pipework Background An rentice Pluer and his boss received a severe electric shock after cutting through a HDPE water pipe. The rentice''s injury proved fatal, whilst his boss was treated for internal burns.
Summary of risks with conductive and non-conductive plastic pipes at retail petrol stations Harold Walmsley, Harold Walmsley Electrostatics Ltd, 23/01/2010 Introduction This note summarises my views on the use of conductive (i.e. dissipative lined) and non
30/10/· 10 ft of the water pipe is in direct contact with the earth Joints must be electrically continuous Water meters may not be relied upon for the grounding path Bonding jumpers must be used around any insulating joints, pipe, or meters Primary connection to the
The bonding point for CSST must be at the first piece of HDPE or copper pipe where the gas service enters the home. This is because lightning can blow holes in CSST, causing a gas leak. A pair of 8-ft.-long metal ground rods are driven into the earth next to your house to provide a path to ground for your home wiring system.
1/8/2007· In my house I had a new water main installed using the new blue plastic pipe. When I had the electrics tested, the electrician failed it because he said that the water pipe should be bonded to the main earth in the consumer unit. I told him it is a plastic pipe and so does it really need bonding ? He said he would find out and phone back, of course he never did. The rest of the copper water Puhui Pipe manufacturer in China
Metal Underground Water Pipe. A metal underground water pipe in direct contact with the earth for 3.0 m (10 ft.) or more ….. 2. Metal Frame of the Building or Structure. The metal frame of the building or structure that is connected to the earth ….. 3. A concrete
Omission of Main and Supplementary Bonding As per regulation 422.214.171.124 BS7671: a main protective bonding conductor shall be connected to any extraneous-conductive part as previously described. However, any metallic pipes entering the building that have an insulating section at their point of entry (ie plastic) need not be connected to the main protective bonding.
Main bonding - Green and yellow conductors that connect metal pipes (gas, water or oil) from inside a building to the main earthing terminal of the electrical installation. Main bonding connections may also be made outside the building, for example where a semi-enclosed gas meter box is installed outside and it is not possible to install a bond to the gas installation pipework indoors.
14/6/2007· Nope a plastic water pipe entering the house and then being connected to a copper pipe is not an extraneous conductive part that requires main equipotential bonding to comply with BS7671 applying the definition. However it seems to by folklaw and common Puhui Pipe manufacturer in China