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.

If the incoming water service pipe is made from plastic and there is not any fortuitous contact with Earth, it is not an extraneous conductive part and does not require bonding. This IET Wiring Matters article provides guidance on protective bonding and extraneous-conductive-parts.

The pipe industry is one of the major plastic users in Europe with an annual volume in 2007 of 3.3m t, representing some 8% of total European consumption of polymeric materials. After a prolonged recession in the German construction industry and poor demand in Puhui Pipe manufacturer in China

27/8/2010· We are told one meter of plastic pipe will isolate and where plastic piping is used except for where visible there is no need to bond it. And it says in regulations one should bond the main metallic water pipe (extraneous-conductive-part) and "extraneous" means coming from the outside.

As shown in Fig 1, in a PME arrangement the supply neutral conductor provides the functions of both protective and neutral conductors, and is connected to multiple earthing points on the supply network. The supply neutral conductor, often referred to as a PEN Puhui Pipe manufacturer in China

The HDPE Pipe Model, developed by the PE100+ Association with inputs from many industry experts, includes the most frequently asked questions and answers (Q&A''s) of all the elements through the pipe system value chain: design, materials, construction

Components of Electrical Earthing System Earth Continuity Conductor or Earth Wire That part of the earthing system which interconnects the overall metallic parts of electrical installation e.g. conduit, ducts, boxes, metallic shells of the switches, distribution boards, Switches, fuses, Regulating and controlling devices, metallic parts of electrical machines such as, motors, generators Puhui Pipe manufacturer in China

Outline • PE100+ Association • How Do PE100 materials compare to PE4170 materials • Regulatory approach to pressure pipe design in accordance with ISO standards • Actual failure statistics • Composition of the European drinking water grid (selected countries)

METRIC : A versatile pressure system rated to 16bar excellent range of pipe fittings for glue and threaded fittings, more economical than imperial system Use for water and chemicals. Pipe Sizes and descriptions can be confusing, usually because the actual pipe size bears no …

THE NAME: plastic composite pipe for water selling well in European marker MIN.ORDER: 100 METERS, IF YOUR ORDER IS LOWER THAN THIS ,PLS CONTACT US. MATERIAL: PPR,PE,AL STANDARD:ACCOUNDING TO GB/T18742.3 AND DIN8077/8078 Puhui Pipe manufacturer in China

Spiral Pipe Wireway / Trunking Duct & Fitting Cold Room Lightning Protection Earthing System Lightning Conductor Pipe & Conduit HDPE / PE EFLEX / Corrugated Pipe EMT & IMC Conduit uPVC Water Pipe PPR uPVC Conduit Pump Construction and Others

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

ASTM''s plastic pipe standards are instrumental in specifying, testing, and evaluating the physical, mechanical, design, and installation requirements for plastic, polymeric, or elastomeric pipes, tubing, and fittings, including the seals, threads, and couplings that join Puhui Pipe manufacturer in China

Polyvinyl Chloride (PVC) Pressure Pipe and Fabried Fittings, 4-Inch through 60-Inch (100mm through 1500mm), For Water Transmission and Distribution AWWA C907 Injection-Molded Polyvinyl Chloride (PVC) Pressure Fittings, 4 in. through 12 in. (100 mm

HDPE Pipe, known as HDPE 100 Pipe (High Density Polyethylene Pipe) and HDPE 80 Pipe used in many projects for potable water, such Puhui Pipe manufacturer in China REQUEST QUOTE Zeep Construction CO LTD was founded in 2010 and developed since its inception at the same time expanding its worldwide customer base continues to provide the best services to many countries today.Through our meticulous quality we …

WIS 4-35-01: Specifiion for thermoplastics structured wall pipe - supplementary test requirements This Water Industry Specifiion is called up in the National Annex to BS EN 13476, allowing it to be used for additional testing not included in the European

10/8/2010· Bristol Water will shortly be upgrading the main water supply pipe in my street to a plastic pipe. They have warned that some houses built before 1966 (mine is 1930s) may use the current metal water supply pipe for electrical earthing and I should get an …

Galvanized pipe is strong, but lasts only about 50 years. Before repairing, consider replacing instead. Call a professional to deal with it. Copper: Copper pipe is resists corrosion, so it’s commonly used pipe in water supply lines. It costs more than plastic but it

23/1/2004· The pluers have used plastic connectors on the copper mains and hot water pipes. Some of these pipes are visible in the toilet that is to be used the public. There are wall mounted mirror lights, a wash basin and an electric wall mounted electric heater in the same room.

13/11/2014· Whelton''s team has already tested how various brands of plastic pipe affect water-chemical quality and odor, most of their effort focused on cross-linked polyethylene, or PEX, plastic piping. And his results show high variability between how different brands of PEX pipe perform with respect to the nuer and amount of chemicals that they release into drinking water.