We hope you enjoy this newest edition of CodeNotes. IF YOUR HOUSE GETS HIT BY A DIRECT LIGHTNING STRIKE, YOU REPLACE WHATEVER IT DESTROYS, AND BURY ANYONE WHO DIES. Rousseau, Alain, and Mitchell Guthrie. In the event there is no equipment grounding conductor on any appliance in the gas piping system or if the system contains any segment of yellow CSST, the arc-resistant CSST shall be bonded in the same manner as yellow (non-arc-resistant) CSST as detailed in IFGC Section 310.2/IRC Section G2411.2. (Since the connection to the contractors heater is only temporary, the bonding clamp and conductor have not yet been installed.). How can the CSST be bonded when its not near my unit or the electric panel? gq
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In my Brother-in-Law's condo, the gas line was snaked all over and not really strapped anywhere, although it was protected by nail plates at stud and joist penetrations. Each aboveground portion of a gas piping system other than CSST that is likely to become energized shall be electrically continuous and bonded to an effective ground-fault current path. When CSST piping is installed underground outside of the building, the portion of CSST which approaches the building, by necessity, becomes above ground and is exposed. Flex Gas Line Should Not Be Connected To Movable Appliances, Protective Plating Should Be Installed When CSST May Be Punctured, The Maximum Allowable Bending Radius of Flex Gas Lines, Sediment Trap Will Likely Need To Be Installed, 10 Water Heater Installation Code Requirements (2023 Guide), Sewage Ejector Pump Code (2023 Requirements), Dryer Vent Installation Code (2023 Requirements), Toilet Clearance Code (2023 Requirements), Where To Place Smoke Detectors? The requirements set forth Sections G2411, and G2415.7 of this code. Can I use the ground wire on the 220v stove receptical to bond the csst to my main panel? Mau, Andrew E. "Self-flaring, split bushing pipe fitting and hose assemblies employing same." CSST comes in rolls as long as a few hundred feet. LIGHTNING SAFETY WARNING FROM MANUFACTURERS OF CORRUGATED STAINLESS STEEL TUBING (CSST), "Diamondback Flexible Gas Piping - Snake-It Design Guide and Installation Instruction Manual", Tecvalco Ltd., 3481 Stanley Ave. RR#1, Niagara Falls, ON L2E 6S4, Canada, - retrieved 13 April 2015, original source: http://www.tecvalco.com/sites/default/files/files/Tecvalco %20Diamondback/Diamondback_Design%20Guide% -Nigel. In the CSST installation example specifications listed below you'll see that the manufacturers typically require a number of installation details to assure safe reliable operation of the gas piping system, including nail plates, flexible corrugated steel armor in some locations, support, and other measures.
The article discusses CSST uses, sources, installation specifications, and safety measures to protect the gas piping from damage by abrasion, puncture, lightning strikes or other hazards. An excerpt from their website states: TracPipeCounterStrikeis a patented CSST innovation based on our existing TracPipeCSST product, but that is engineered to significantly decrease the potential for lightning induced damage to fuel gas piping systems. The course will provide CSST installation code basics, including general sizing and installation, with an emphasize on the connection between the fireplace appliance and the CSST system. If they call for it, more than likely they will sell it. Notice I didnt use the ground wire at all in this example. we are focused on a safety campaign to make homeowners aware of the need to bond yellow CSST. arrow_right. Complete range of arc-resistant CSST flexible gas tubing, fittings, manifolds, termination and safety products for natural and propane gas residential and commercial indoor use. U.S. Patent 7,562,448, issued July 21, 2009. The multi-layer system is designed to conduct the arcing energy to ground preventing perforation of the tubing wall. Treichel, Steven A. Ideally, you want to put the bonding clamp in a spot where the wire will be asshort as possible back to the electric panel. They want to be able to easily move the range for cleaning. THE CONNECTION TO THE GAS LINE MUST BE MADE AT A SPECIFIC SPOT. by InspectApedia (Editor) (mod) - Can csst be used outside. Please click the link in the email Their 2007 report concluded with a recommendation for direct ground bonding of CSST as a proposal to the National Fuel Gas Code. Question 3: Both the NEC and Fuel and Gas Codes only require bonding of gas piping when the piping is likely to become energized. Free shipping for many products! The bonding conductor must be no longer than 75 feet (22,860 mm). Thank you for a helpful question. It was invented in the 1980's in Japan. Our page top photo, provided courtesy of Carson Dunlop Associates, a Toronto home inspection & education firm, illustrates an improper installation of standard yellow CSST gas piping - routed in ground contact in a wet area. It was invented in the 1980s in Japan. The reason for the development of CSST was to improve the safety of gas line systems in buildings during earthquakes. CSST is short forCorrugated Stainless Steel Tubing. - original source: http://homeflex.com/downloads/HOME-FLEX_Installation_Manual.pdfTracPipe, CANADIAN FLEXIBLE GAS PIPING DESIGN GUIDE & INSTALLATION INSTRUCTIONS [PDF] This is a relatively new, flexible gas line used all over the country. Old homes with flexible gas lines were up to code when the home was built. Website: www.wardflex.com/index.htm. Flexible Gas Line Code (2023 CSST Requirements) Arie Carrier Tuijl | Licensed Place Inspector . Louisville, KY 40207. Corrugated stainless steel tubing was invented in 1988 and gained approval for use in most of . Yellow is the universal color for anything gas related in a home. Can csst be supported on the bottom of floor joists in basement. Note: Black jacketed CSST piping that is certified as arc-resistant is marked with the letters AR (Arc-Resistant) indicating compliance with the CSA/ANSI LC-1 standard. When this connection is made, each conductor (wires, metal pipes, etc)will rest at the same electrical potential that is a fancy way of saying everything is even and nothing has a higher or lower electrical charge. And that's why I am your guide on the intricacies of home maintenance, saving money, and avoiding costly mistakes. Albino, Mark. Because it is flexible, the walls of the pipe have to be thin. Home Building Code Flex Gas Line Id. Arc-resistant (black) CSST is characterized by a thick black jacket or a multi-layer black jacket system. Once the breaker trips, that is called clearingthe fault and you know something is wrong by the loss of power. CSST is short for Corrugated Stainless Steel Tubing . What does a home inspection in Louisville KY cost? The CodesNotes collection has recently been expanded to include a selection of notes offered in Spanish. Or if we look at the February housing start data that means that almost 100% of new homes are using CSST gas piping - which sounds a bit dubious. Ten 1" Male x CSST Fittings (NEW in box). Above you can see the traditional change from flexible copper tubing to steel piping when the gas piping system had to penetrate the building wall. "Lightning dangers on corrugated tubing carrying hydrocarbons." vsantos (Vince Santos, Reg104669Cc . Of course there are protection, routing, electrical grounding and other requirements for such piping to be safe and functional. Examples includeHomeFlex INSTALLATION MANUAL [PDF] Valencia Pipe Co., U.S. Patent 6,173,995, issued January 16, 2001. For comparison, 'black iron' gas pipe will usually last around 50-100 years. Goodson in a patent application (2009) also reported on the effectiveness of direct bonding of both yellow and black CSST gas piping to reduce the risk of damage from indirect lightning flashing. CSST that is not arc-resistant is only allowed to use method (4) or (5) of section 250.104(B) of the NEC per section 310.1.1 of the NC Fuel and Gas Code. If it were water piping, it would be PEX. The history and field experience of CSST use in North America led to concerns about possible pitting, corrosion or perforation of the original yellow CSST gas piping in areas where lightning strikes were common. CSSTis a flexible gas line material that has been used in millions of homes across the United States and the world. Past topics include backflow devices and the protection of the water supply, gas pipe sizing based on the latest edition of the International Fuel Gas Code and the International Residential Code, and bonding of corrugated stainless steel tubing gas piping systems, just to name a few. 0
It is snaked through the building as part of the distribution system and the runs are cut and put together on the job site. Bonding a CSST gas distribution system requires cooperation between the installer of the system, the electrician, and the installer of the lightning protection system if the building has one. CSST had been snaked through floor trusses and had looped up in one location, where a pneumatic nail from the wood flooring installation had punctured it. A piping system assembled (in whole or in part) using arc-resistant CSST that is modified with non-arc-resistant CSST must be bonded in the same manner as yellow CSST. Throughout this post, Ill explain how to verify if you have CSST in your home, what bonding means from a technicalstandpoint, and how the bonding should be installed. Thanks Ben for your quick reply. Flexible gas lines (also known as corrugated stainless steel tubing - CSST) have been installed in millions of homes in the U.S. and around the world. If conditions such as overheating have damaged the entire piping then ick wider replacement is probably needed. Industry Applications Magazine, IEEE 19, no. They were very responsive and actually called me back the next day after I emailed them. model name / number: 11-01075. size / dimensions: 75' x 1" id. This is because of the greatly reduced installation labor compared to using conventional black pipe with threaded fittings. I have seen many house defects over the years and saved my clients tens of thousands of dollars. Treichel, Steven A. Standard "yellow" or newer black CSST can be recognized in (usually) long runs between the building gas source and its point of use at gas appliances. Some CSST manufacturers will require a minimum of flex line support every 4-feet, but other companies may only need support every 8-9 feet. The photo suggests installation by an un-qualified installer. FLEXIBLE APPLIANCE CONNECTOR (FAC) OR CSST GAS LINE. Watch out: Let's avoid a point of confusion: CSST used as gas piping runs in buildings is not the same product as the flexible gas connector tubing (shown below) used to actually connect gas appliances to the gas supply system, and different installation and product protection measures are required. Homeowners should check with the manufacturer to see if their CSST has an arc-resistant protective jacket. City Of Philadelphia (2011) in Philadelphia: OHCD/PHCD/RDFA Small Building Regulations (2011), Division 22 Plumbing, Quality Standards and Construction Procedures: - retrieved 14 Apr 2015, original source: http://www.phila.gov/ohcd/smallbldgspecs/smallbuildingspecsjune2011.pdf#page=231, Hardened nail plates are required where CSST passes through wood framing at distances less than 3" from the cavity surfaces. Most of the CSST runs are 1/2, 3/4 and even up to 1. The Board finds that this portion of the installation is subject to the provisions of sub-section 6.2.1 of NFPA 54, 2002 Edition, as adopted by 248 CMR 4.03 (1). Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. The gas supply is on the east end and the electric panel is on the west end. I think that only Ward continues to produce the yellow CSST for sale in the U.S. "Sealed fitting for use with corrugated tubing." Albino, Mark, and Edwin E. Pike. What size wire should be used when bonding CSST? Most of the FACs I see are 3/8 to 5/8. Minnesota's 2015 Fuel Gas Code uses the 2012 International Fuel Gas Code, which requires CSST to be bonded anywhere along the electrical service grounding electrode system. I grew up with a hammer in my hand, and have been a professional home inspector for 14 years. Since 1990 CSST has been used within many buildings in both exposed and enclosed areas to install new gas system piping. When lightning strikes the ground, it releases an extremely high voltage electrical spike that pushes induced electrons in every direction. The idea was that if a building started to move during an earthquake, it should have a gas line that moves with it. Would it still be a good idea to bond your CSST even if you have the black stuff? . CSST needs to be electrically bonded and grounded to prevent damage to the line. Goodson, Mark E. "Device for Preventing Electrically Induced Fires in Gas Tubing." Just had a water heater installed and noticed the gas line was bonded to the heater water input line. Many U.S. states and foreign countries use the IRC for their building code, sometimes with matching language. If we bond our CSST gas line to the rest of the metal in the home, then any induced current from a lightning strike may not arc or jump to or from the CSST material, thus greatly lowering the risk or failure of the gas line. Keep in mind you want to keep your bonding wire as short as possible, so if you can, make your connection point as close to the panel as feasable. I have not seen gas piping installed in this method. The bonding conductor can be a solid or stranded copper or aluminum conductor. However, newer CSST (usually black jacketed, not yellow) has an arc-resistant jacket that is already considered bonded when installed to a grounded appliance such as a furnace. Only registered ICC members have access to this article at this time. They are a service that tests (to failure) every product it certifies. I am an HVAC contractor. Chances are that it was not done at all, and you need to rectify that. Website: www.proflexcsst.com, Titeflex Corporation (manufacturer of the Gastite System CSST Corrugated Stainless Steel Tubing) Bonding Clamp. Such lightning-related electrical arcing can weaken or even perforate the gas piping leading to dangerous gas leaks. 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