This code requires bonding for CSST and includes detailed specifications for installation of CSST including the installation and spacing of supports (ranging from 1.2 to 2.4m depending on pipe diameter). . Thanks! Thank you! National Fuel Gas Code (ANSI Z223.1/NFPA 54), the . The conductor can be installed indoors or outdoors. And no, you cant just wrap the wire around the pipe a few times like Ive had people ask. Since then, CSST has gained in popularity as contractors have quickly discovered it could be installed in a third of the time with fewer fitting, which reduces the likelihood of leaks. According to Jim Narva, executive director of the National Association of State Fire Marshals, that association is focusing on informing homeowners of the need for retrofit ground bonding of older CSST installations. This article describes CSST: corrugated stainless steel tubing used for gas piping in buildings. A separate grounding electrode and grounding system cannot be established just for the fuel gas piping system. . The single-layer black jacket is designed to absorb arcing energy caused by a lightning strike preventing perforation of the tubing wall. Yes there are version of CSST sold for outdoor use. I think it is the black csst, May have a continuous ground, through the length of the pipe. . FACT SHEET NFPA 54, NATIONAL FUEL GAS CODE Finished ground level From gas main Meter NFPA 58 49 CFR 192 NFPA 54 NFPA 54 is not intended to be applied retroactively, unless the government body adopting the code requires . The bonding clamp and bonding conductor have already been attached to the black pipe. Thanks! It was noted that this damage could be due to the small mass of CSST compared to black steel pipe. 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. Im installing a propane gas stove and will tap off the 220v stove receptical for a 110v for the stove power. Only one image can be added per comment but you can post as many comments, and therefore images, as you like. Mr. Kahn is a licensed home inspector in New York and New Jersey, and can be reached at Website: Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the. I inspected a bi-level yesterday and came across the attached picture. Hey, I'm Arie and I created this site. However, I dont think the ground wire of that circuit will meet the minimum requirements of a 6awg wire. The most gemeinschaft agile gas line coding is that requirement with flooring and bonding. Are special brackets required? on the brass fitting connecting each run of CSST to a manifold. I have bonded several older CSST gas systems. They were very responsive and actually called me back the next day after I emailed them. * Estimated delivery dates - opens in a new window or tab include seller's handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will . I think that only Ward continues to produce the yellow CSST for sale in the U.S. The installation of an extra bonding connection is in addition to the bonding required in IFGC Section 310.1/IRC Section G2411.1 for ground fault protection. 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. See details at FLEXIBLE GAS CONNECTOR INSTALL. If your home or business was built after 1987, or if work on your natural gas piping system has been performed since then, CSST may have been installed. How to age a Bradford White Water Heater? If conditions such as overheating have damaged the entire piping then ick wider replacement is probably needed. CSST should never be directly connected to movable appliances like dryers, washers, and ovens. The bonding clamp must be accessible and can be located outdoors or indoors. Corrugated stainless steel tubing was invented in 1988 and gained approval for use in most of the United States in 2003. Read Also >> What Is The Code For Water Heater Installations? This is because of the greatly reduced installation labor compared to using conventional black pipe with threaded fittings. 2. According to the CSST Safety Website (below), corrugated stainless steel tubing is installed in about 500,000 new homes each year. Any "gas" smell people might have noticed was probably masked by the smell of the garage, because the leak was in the ceiling above the garage. Ive not heard of any failures from the black stuff, but its still early. They are similar in the fact that both are made from flexible stainless steel, and both are typically yellow in color. The steel enclosure of the electrical service equipment; or, The grounded conductor at the electrical service; or, The grounding electrode conductor (if it is large enough) between the service equipment and the grounding electrode(s); or. The 1999 NEC Handbook Section 250-104 (b) says that it should be bonded to the grounding electrode system. Joe said this was the unofficial- official rule. This new safety requirement will require training updates for fire inspectors and building inspectors, who may be acquainted only with the code requirement which states that gas piping shall not be used for grounding purposes; and for utility workers who may have been taught to remove ground clamps from gas pipes when they encounter them. GAS SUPPLY for ELECTRIC GENERATORS $68.99 $ 68. Hi, I'm Ben, and I inspect houses. The 2021 International Fuel Gas Code (IFGC) and International Residential Code (IRC) have reaffirmed (without any modifications) the requirements for the electrical protection of corrugated stainless steel tubing (CSST). Someone, probably a home inspector, is spending your money to reduce their risk - it's a great deal for them as your money is "free" to them. Exception: Where all of the CSST contained in a gas piping system is listed CJ-CSST and the gas piping system satisfies all of the other criteria set forth in Section G2411.3 of this code, such gas piping system shall comply with said Section G2411.3 for CJ-CSST. Instead in those situations it's common to use steel piping for such gas lines. This stops the danger of the situation and lets you know something is wrong. I'm here to help you maintain, inspect, and renovate your home! 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. The photo suggests installation by an un-qualified installer. Thank you for a helpful question. 0,`^! Free shipping for many products! [At left, a new CSST gas piping installation, incomplete, is illustrated, courtesy of Carson Dunlop Associates (found at page bottom, Click to Show or Hide) .]. You will not receive a notification when a response to your question has been posted. Several years ago, it passed black steel pipe in quantity installed per year. Natural Gas and Propane Installation Code (CSA B149.1), the . Because it is flexible, the walls of the pipe have to be thin. The gas line comes to our meter at one end of the house, and the owner wants to have a gas burning insert in the fireplace at the other end of the house, 50 feet away. Since the CSST gas line has such a thin metal wall (0.3 mm thick) it is important to protect the gas line from nail punctures. Youll want to be sure and check with the manufacturers installation instructions of the product that was used in your home. Inspectors should note the presence of this marking when inspecting for compliance with IFGC Section 310.3/IRC Section G2411.3. PLEASE SEE this Q&A and our detailed reply now at Geeky Technical Answer: Modern electrical systems have 3 wires in a simple 120v circuit- like your wall switches or receptacles that you plug things into. Since CSST has a much thinner wall than traditional black iron gas pipe, it should be protected from damage when outside and above ground. 2. meets code. One of the biggest dangers of buildings during earthquakes is gas leaks that occur after the shaking has stopped. He's talking about CSST (corrugated stainless steel tubing) gasline. 3. doens't look horrible. Read Also >> What Is The Code For Range Hood Venting? Federal Manufactured Home Construction and Safety Standards (ICC/ANSI 2.0), the . Homeowners should check with the manufacturer to see if their CSST has an arc-resistant protective jacket. Submitted by Ray Thornburg on Tue, 02/12/2013 - 12:37 Ray Thornburg's blog; Can csst be used outside. Something that would not fatigue like the standard corrugated gas flex tube would. 20%26%20Installation%20Instruction%20Manual.pdf, "Lightning Safety Warnings from Manufacturers of Corrugated Stainless Steel Tubing (CSST)", Amerigas Corporation, Valley Forge PA, USA, (2013), Tel: 1-800-263-7442, - Email ABI Home Inspections Thanks Ben for your quick reply. It is estimated to be in about 6-8 million homes where it was installed before bonding was a code requirement or manufacturer installation instruction, Between the early 1990s when it was introduced in the US market and the mid 2000s when the requirements came about is the target we are trying to reach and unfortunately no one knows where those 6-8 million homes are in the US. I am concerned that it may be a safety issue. Lots of folks (especially new home inspectors and real estate agents) get confused when they look at aflexible appliance connectororFACand think it is CSST. This did not prevent the leak I described, as the CSST looped up and was hit by a pneumatically-driven flooring nail How many homes have CSST installed? the other end of the CSST would run through the attic and down . Please bookmark this page to make it easy for you to check back for our response. This document requires that CSST gas pipe to be bonded to the premises electrical grounding system. - retrieved 13 April 2015, original source: http://seftim.clic-droit-tech.com/publications/ICLP/ICLP_2012_CSSTinvestigations.pdf. Thanks. We will email you a link to reset your password. What we are learningnow is that installations of CSST gas pipe need an additionalbonding point to the homes system grounding for fire safety. Jul 20, 2012. The requirements set forth Sections G2411, and G2415.7 of this code. If they call for it, more than likely they will sell it. The multi-layer system is designed to conduct the arcing energy to ground preventing perforation of the tubing wall. Your article is very comprehensive and thorough. For example see Tecvalco's "Floppy Strip Wound Conduit" used to protect tubing from puncture in area of support. CSST Gas Piping Codes, Specifications, Industry Trade Associations. Home Building Code Flex Gas Line Code. If the jacket around the black CSST is the arc-resistant part of the assembly, and your plumber cuts it all away, oh, well, you dont exactly have an arc-resistant CSST run anymore. "Effectiveness of Direct Bonding of Gas Piping in Mitigating Damage from an Indirect Lightning Flash." Only a single point of attachment is required regardless of the length or complexity of the piping system. Goodson, Mark E. "Method of preventing electrically induced fires in gas tubing." Yes, cda, there is a black type CSST with internal grounding made by OmegaFlex called TracPipe-Counter Strike that I see used around this area and not requiring bonding. Most of the FACs I see are 3/8 to 5/8. Can plumber split in a joint connector, or does the whole line need to be replaced? If you havent already done so, please go online and become a member of the PMG Official Membership Council. His career began as a second-generation plumber, working for his father at Clifton Plumbing Inc., in Tampa, Florida. If you get a surge in the power coming into your home, or a critter chews up a wire, it will send the power back to the source (the electric panel) so the breaker can trip. Still, the system is in active use in the U.S. and Canada and continues in use in Japan. Is this acceptable, according to your guidelines and any applicable codes? I grew up with a hammer in my hand, and have been a professional home inspector for 14 years. Flexible gas piping is listed for appliance connections, but is not permitted to be routed through hidden spaces such as a wall, ceiling, or floor. Hi Alex As far as I know, there is no additional bonding requirement for flexible appliance connectors. In general, the shortest bonding conductor will be the most effective. Ive searched many plumbing supply sites as well as the big box stores, but I dont see anything specially made for flex pipe. The early reports were not always considered credible, even though firefighters recognized the breaks in the system and the burning gas. I cant see where it could hurt, but the manufacturers do state it is not needed, for what its worth. Over $400 at HomeDepot. You can enable JavaScript via your browser's preference settings. Photo 1 shows a natural gas service entering a building, with a field-assembled manifold for connecting CSST to serve three gas appliances, plus a run of black pipe serving another manifold on the other side of the building. GAS PIPING, FLEXIBLE CSST at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. Through csstsafety.com the National Association of State Fire Marshals and the CSST industry recommend that homes where gas piping has been installed or modified since 1990 be inspected for the presence of yellow CSST and that the electrical ground bonding in those homes be inspected. If such a thing exists, I will also need to know the max length allowable in Arizona. Just know that if you do have a problem, it can becatastrophic. Of course there are protection, routing, electrical grounding and other requirements for such . Flexible appliance connectors also have a corrugated pipe except that the corrugation is visible and there is no plastic sheathing. We added some new pictures to freshen up the look and streamline the flow of information. These are the hot wire (black), the neutral wire(white), and the ground wire (bare copper). Can I use the ground wire on the 220v stove receptical to bond the csst to my main panel? Just had a water heater installed and noticed the gas line was bonded to the heater water input line. House Fire Due to Faulty CSST Installation. I have seen many house defects over the years and saved my clients tens of thousands of dollars. The manufacturer will specify where and when shutoff valves will need to be required. Gastite Division Home-Flex 1/2 in. 7.13 Electrical Bonding and Grounding 7.13.2 CSST. However, it's not nearly as durable as a black iron pipe. My OPINION is that for such items an allowance, rathe rather than doing the work, is a better deal for both buyer and seller.For the seller, you avoid getting dragged into an abyss of unknown hassle and expanding costs.For the buyer, she can be certain that the work is both done properly AND that the work was performed by someone who is accountable to her. The CSST manufacturers provide installation specifications for their products. 2009 Fuel Gas Code Section 403.5.4; 2009 International Residential Code G2414.5.3; . On 2020-05-22 - by (mod) - How can the CSST be bonded when its not near my unit or the electric panel? . vsantos (Vince Santos, Reg104669Cc . Rising Tide Consulting, L. L. C., and L. L. C. Cutting Edge Solutions. I believe you should have said bonded to the grounding conductor. Doesnt all this bonding assume that every joint in the gas line has good metal to metal contact to be able to carry the stray current to the bonding wire? The ICC (International Code Council) released this document a few years ago that is a great overview of how to properly bond CSST in your home. Only registered ICC members have access to this article at this time. But typically, at least one shutoff valve will need to be installed where the flex gas line connects to the 'black iron' or hard gas pipe. The International Residential Code doesn't specify the wire to be used for bonding, but it ismost commonly a #6 AWG copper conductor and installed where the solid gas pipe gas line first comes into the home. A flexible appliance connector should be used instead to connect from the CSST to these appliances. CSST may be protected either by installation of an extra bonding connection (IFGC Section 310.2/IRC Section G2411.2) or by the use of a listed arc-resistant jacket (IFGC Section 310.3/IRC Section G2411.3) in accordance with the national standard CSA/ANSI LC-1. Since 1990 CSST has been used within many buildings in both exposed and enclosed areas to install new gas system piping. On 2021-10-05 Corrugated Stainless Steel Tubing at the best online prices at eBay! 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. CodeNotes CSST Bonding. Let's get to it! The CodesNotes collection has recently been expanded to include a selection of notes offered in Spanish. The flexible gas line code in the IRC doesn't explicitly state how often it needs to be supported, but it says you must follow manufacturer instructions on spacing. One of two tables in the International Residential Code that governs pipe size for CSST. 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. The idea was that if a building started to move during an earthquake, it should have a gas line that moves with 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. arrow_right. Though this has always been a manufacturers requirement; the IRC code specifies this bonding requirement for all types of CSST since at leat 2009. gq Y7v0XSv 5&ZRK ";"f^ c}3 -E SIMPLE ANSWER: Bonding is when all metal parts of a building are connected together like they are holding hands. You dont want the current to have to ride 3 miles of wire before it reaches the bonding point at the panel. this is no longer required by the national fuel gas code. CSST is flexible steel piping used in place of rigid, black steel pipe . Good idea! And that's why I wanted to create this guide, to educate homeowners on the potential hazards of flexible gas lines and to bring them up on current code. Great job! The code requirements from latest model codes, 2018 National Fuel Gas Code and 2018 International Fuel Gas Code will be presented. TracPipeCounterStrikeis designed to withstand significantly higher levels of lightning energy when compared to conventional TracPipewith the yellow jacket. Probably. See Question 1. CSST Gas Line is a Couple Feet Too Sort. Both arc-resistant jacket systems provide equal protection along the entire length of the piping system, and the extra bonding described in this CodeNotes is not required. We have sent an email to the address you provided. I was aware that on the yellow CSST (Gastite) type piping that you can not attach . Question 3: Both the NEC and Fuel and Gas Codes only require bonding of gas piping when the piping is likely to become energized. Bonding Clamp. :thumbsup: As far as the NEC goes, the EGC bonds it, but CSST manufacturers specify at least a #6. This code came in as a response to damage to flexible gas lines and fires in homes struck by lightning. Both of your questions can be answered by following manufacturer's installation directions and by discussing with a qualified professional. . For comparison, 'black iron' gas pipe will usually last around 50-100 years. As an amateur radio operator Im very concerned about bonding. hU]k;+xbHFrK(bf49:K)8+ZA;]8[0_V`5QE%8!g_p>[Xf&B xwxV4YxMUz" N%r:3Tl*@S3D@X$>H@3H'EeKkOuAz. Mark I don't know what that is. The wire used to create the bond between your CSST gas line and the electrical system must be a heavy gauge 6-AWG copper minimum size. Gas piping codes and industry sources of CSST are included. U.S. Patent 6,079,749, issued June 27, 2000. Responsibilities for One & Two Family The location of the bonding clamp on the gas piping system must be selected to comply with the maximum allowable conductor length. I also found this sad story from NBC 5 News in Texas on a house fire that killed a man from suspected CSST failure. 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. CSST gas piping systems shall be bonded to the electrical service grounding electrode system. 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 [Prohibits use of CSST gas piping], "Uniform Plumbing Code, Abu Dhabi Emirate" Uniform Mechanical Code for Abu Dhabi (2009). (2007). CSST is flexible so it can be snaked through the structure. Explore all the benefits that ICC Membership has to offer and become a member today to gain access to this exciting content. www.gastite.com/index.html, Ward Manufacturing, Inc. (manufacturer of Wardflex and Wardflex II CSST gas piping) Your account has been marked for password reset. I encourage you to check your homeor have a pro come help check your home to see if you have CSST installed, and double-check to see that the bonding was properly installed. 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. 2009 International Residential Code G2414.5.3, ANSI Z223.1 / NFPA 54 National Fuel Gas Code (2015), SA listed to ANSIZ21.75 /CSA 6.27 standard Connectors for Outdoor Gas Appliances & Manufactured Homes (file #204593), CSA listed to ANSIZ21.24 /CSA 6.10 standard Connectors for Gas Appliances (file #204593). I would check the manufacturer and see if they offer anything. Delivery times may vary . Keep in mind that this job requires you to run wires inside the electrical panel of the home so youll want to let the pros handle this one. It is kicked back, watching Netflix, waiting to be called into action. . Maybe. by InspectApedia (Editor) (mod) - Can csst be used outside. %PDF-1.6 % The following example is excerpted from a local Oklahoma Building Code for Rogers County, Appendix H, , Subsection "Policy for installation of Corrugated Stainless Steel Tubing (CSST)", in Appendix H-17General Information and You'll want to find something like "Listings: CSA 256532 / IAPMO 7660" regardless of whether the CSST was made in the U.S. or CanadaLook for a CSA code stamp or label on the product. - original source: http://homeflex.com/downloads/HOME-FLEX_Installation_Manual.pdfTracPipe, CANADIAN FLEXIBLE GAS PIPING DESIGN GUIDE & INSTALLATION INSTRUCTIONS [PDF] When certain conditionsof an electrical storm are present around/in the home, the CSST can fail, create a gas leak, and start a fire. 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. If it were electrical wiring, it would be Romex. It was invented in the 1980s in Japan. My unit is on the middle. Ideally, you want to put the bonding clamp in a spot where the wire will be asshort as possible back to the electric panel. Yellow "Standard" CSST gas pipin galso requires special electrical ground bonding to reduce risk of damage & leaks in areas of high lightning strike activity. DennisCSST is code-approved in Canada - though must be installed by a qualified installer. . Durham, Robert A., and Marcus O. Durham. connect a 90 joint to Corrugated Stainless Steel Tubing (CSST), drop it through the hole drilled in the header and fish it through the hole in the exterior wall. Studies have confirmed that a lighting strike near a home can puncture the membrane of CSST as result of the power surge. IT IS VITAL TO UNDERSTAND THAT NONE OF THIS HAS ANYTHING TO DO WITH LIGHTNING PROTECTION FOR YOU OR YOUR HOME. CSST Safety Website: www.csstsafety.com, hosted by the National Association of Fire Marshals (NASFM), http://www.firemarshals.org/ This website discusses various aspects of CSST safety including lightning hazards, electrical ground bonding and grounding connections, and recommendations for consumers. arrow_right. Newer black or dark-jacketed CSST gas piping (shown below, adapted from GasTite's FlashShield CSST sales literature) currently sold by most manufacturers may not require special bonding. You are in the right spot! Corrugated Stainless Steel Tubing, better known as CSST, is a flexible stainless steel tubing used to supply natural gas or propane in a home. I just came back from helping my Brother-in-Law with a few issues in his Condo in Boston -- he had a sprinkler pop over the winter, so a lot of the drywall had to be removed to dry things out. U.S. Patent 6,276,728, issued August 21, 2001. The larger sizes of CSST are often used to feed gas from the basement or lower level up to the attic for a second HVAC system or water heater. Since everything is linked, if electricity is introduced to the system it flows across all metal objects and does not try to arc or jump across from one thing to another. endstream endobj startxref We had trouble relating industry estimates with US Census data and U.S. Energy Information Agency data, but there is no doubt that the piping has been installed in many homes in Canada, the United States, and Japan. Protective plates need to be installed to protect flex gas lines from punctures. Joe and I spoke about the bonding requirements for black CSST. Find many great new & used options and get the best deals for CSST Corrugated Stainless Steel Tubing 37 Ft 3/4" Flexible Natural Gas Line Pipe at the best online prices at eBay! Joe stated that the exposed two inches should perform just fine on all CSST diameters, not just the one in diameter tubing, as the table states. Flex Gas Lines Need To Be Installed With Supports, Flex Gas Lines Should Be Electrically Bonded And Grounded For Safety, Flex Gas Line Pipe Size Is Based On A Few Factors. arrow_right. The conductor must be attached to the piping system using a listed bonding clamp in accordance with UL 467. "Does Corrugated Tubing Lightning Catastrophic Failure?." We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. 1. CSST is short forCorrugated Stainless Steel Tubing. Old homes with flexible gas lines were up to code when the home was built. SECTION G2423 (413) COMPRESSED NATURAL GAS MOTOR VEHICLE FUEL-DISPENSING FACILITIES. jpope (Jeffrey Pope, CMI) September 5, 2009, 4:29pm #4. Free shipping for many products! One or more of the grounding electrodes (ground rods) for the electrical system. InspectAPedia tolerates no conflicts of interest. 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. NOTE: Many features on ICCSafe's website require JavaScript. Durham, M. O., and R. A. Durham. Here is one for sale at Home Depot for a few bucks. origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared payment. JoeForgive my griping but this sounds like a possible example of the OPM problem. TracPipeCounterStrikehas been designed with a proprietary jacket material in place of the standard yellow jacket. On 2022-11-18 It was invented in the 1980s in Japan. 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. Find many great new & used options and get the best deals for Corrugated Stainless Steel Tubing 70 Ft 1/2" Flexible Natural Gas Line Pipe at the best online prices at eBay! Flexible gas line or CSST is easy to install. Be sure to read those and the applicable standards that are given in the article above on this page as well as manufacturers own installation instructions. Its worth noting that there is a newer versionof CSST that has ablack jacketon it that has been available for the past few years. . You also need to make sure the clamp is not placed on the actual CSST tubing itself like the photo below. UL actually stands for the Underwriters Laboratory in Northbrook, IL. If you are concerned with your install I would have an electrician check the bonding of the system to make sure things are done correctly. 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). Other than the legal aspect. Does this mean the black stuff doesnt have the same problems as the yellow? Note: appearance of your Comment below may be delayed: if your comment contains an image, photograph, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator.

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