Transcription
CSSTCorrugated Stainless Steel Tubing& Lightning Protection
OverviewWhat is CSST? Composition History Manufacturers Lawsuit Standards & Requirements Damages/Hazzards Recent Events Future
What is CSSTA flexible stainless steel piping materialused for natural ggas & propanep pinstallations. Utilized in commercial & residentialconstruction.construction Sizes range from 3/8” up to 2” diameter. BendableB d bl andd easy to install.ill
Typical InstallationEntry a largerpipe(CSST orblack iron) Runs to manifold Distributed to eachpointi t off use. OneOpipe for everyapplicationli ti
CompositionUsually yellow jacketed. Thin,Thin stainless steel,steel wall tubing.tubing – .008” thick on most products
History Introduced to US in the early 1980’s from Japan.First recognized by NFPA 54 (Nat’l Fuel Gas Code)i 1988.in1988Int’l Association of Plumbing & MechanicalOfficials(IAPMO) rejects CSST in 2000.2000IAMPO finally accepts CSST in 2003 into UniformPlumbingg Code(UPC)() & Uniform MechanicalCode(UMC).During all the standards development, no testing forli h i resistancelightningior reactioni withini hi buildings.b ildiBiggest selling point is labor savings for Contractors.E ti t att over 55 millionEstimatesilli linearlifeetf t soldld per year.
ManufacturersTrade NameW dflWardflexTracpipe, Counter-strikeGastiteParflexProflex CSSTDiamondback Flexible Gas Pipe
Class Action Lawsuit Most people aware of the settlement andassociated program?
Settlement At time, nationalstandards veryyvague on how toground.Court settlementbondingrequirementsitexceeded thecodes.codes
National Standards,Codes &Manufacturer’sManufacturer s Requirements NFPA 780780--2008– SectionS ti 4.144 14 CommonCGroundingGdi NEC: 250.104(b) Other Metal Piping “Wh installed“Wherei t ll d ini or attachedtt h d tot a buildingb ildi or structure,t ta metalt lpiping system(s), including gas piping, that is likely to becomeenergized shall be bonded to the service equipment enclosure, theggrounded conductor at the service,, the groundinggg electrode conductorwhere of sufficient size, or the one or more grounding electrodesused.”» **Not mandatory requirement to bond CSST directly togrounding system** NEC 110.3(B) Installation & Use “Li d or labeled“Listedl b l d equipmentishallh ll beb usedd ini accordancedwithi h anyinstructions included in the listing or labeling.”» **Pretty Vague**
National Standards,Codes &Manufacturer’s Requirements NFPA 54/ANSI Z223.1Z223 1 2009 Edition– Section 7.13 “7.13.1 Pipe & Tubing other than CSST”CSST”“7.13.2 CSST. CSST gas piping systems shall be bondedto the electrical service grounding electrode system at thepoint where the gas service enters the the building. Thebonding jumper shall not be smaller than 6 AWG copperwire or equivalent.”“7.13.4 Lightning Protection Systems. Where a lightningprotection system is installed, the bonding of the gaspiping shall be in accordance with NFPA 780, Standardfor Lightning Protection � Technical BulletinAll Manufactures of CSST have a technicalbulletin that mirrors NFPA 54 for bonding.
What tolookfor!
Damages & Hazzards
CSST blown out of black iron
Attic Space
CSST run bbeneathh peakkin attic space
CSST above master Bedroom
AirTerminal
Another view ofA.T. at peak
Melted 3/8 Copper Air Terminal
Recent Events Massachusetts– Nov. 26, 2008 Board of State Examiner of Plumbers & GasFitters Temporarily rescind approval of all CSST products inState.– Feb 4, 2009 Board reinstates previously approved CSST in MA.Citing evidence provided in form of results from testing atLightninggg Technologies.g New York State– Julyy 24, 2008 Buildingg Code Council emergencyg y adoptionpofnew bonding requirements for CSST. IN, VA, MN & GA code changes for bonding of CSST.
Moving Forward Scope of work– Plumbing installer to subcontract grounding work to electrical? LSA proposal to NFPA Research Foundation– Try and find arc sensitivity value. Lightning TechnologiesTestedd TracpipeiTest Data requested by the LSA twice no response As an industryy – We should exceed what all thecurrent Codes & Standards require.– USE THE SETTLEMENT SCHEMATIC AS OURGUIDELINE FOR BONDING TOP & BOTTOM!!
Credits Torbin,Robert, “CSST:CSST: Direct Bonding Required For All BrandsBrands”,, Dec 2008Mass.Gov, Consumer Affairs and Business Regulation, “Official Notice ofBoard of State Examiner of Plumbers and Gas Fitters” Nov. 26, 2008, Feb 4,2009CircuitCi i CourtCoff ClarkCl k County,CAR,AR CaseCNo.N CIVCIV-20042004--211 “S“Stipulationi l i anddSettlement Agreement.Bonded Lightning Protection, Argyle, TX “ Grounding and Bondingrequirementsqof TPV as specifiedpin Settlement Agreement”gNAHB Research Center, Report Number 57375737-01 080307 “CorrugatedStainless Steel Tubing for Fuel Gas Distribution in Buildings and Concernsover Lightning Strikes,” Aug 2007New York State Dept of Code Enforcement and Administration,Administration Andrews,AndrewsRaymond, Asst. Dir. Code Development, Emergency Meeting Minutes, July,2008Carmody, Mike, “Concerns about CSST Gas Lines – “Grounded in Reality?”FAQ Titeflex.com“TB2008--01, Technical Bulletin”, Gastite System, Titeflex Corpration, July“TB200815, 2008.“LightningLightning Safety Recommendations for Gas Piping SystemsSystems”, Omegaflex,OmegaflexPower & Systems Innovation, Inc, Orlando, FLGoodsen, Mark, Hergenrether, Mark, “Investigating the Causal Link betweenLightning Strikes, CSST and Fires”
Credits NFPA 54, National Fuel Gas Code,Code, 2009 EditionNFPA 780, Standard for the Installation of Lightning Protection Systems, 2008 EditionNFPA 70, National Electrical Code, NEC 2008IAMPO, Uniform Mechanical Code 2006IAMPO, Uniform Plumbing Code 2003Tru--Flex Technical Bulletin,, “Electrical Bondingg ProTruPro-Flex CSST,, Julyy 25,, 2008Product Alert – Ground and Bond, Parflex Flexible gas Piping System, Parker HannifanCorp.“Design and Installation Guide, Gastite Systems”, Titeflex Corp, November 2008“Technical Bulletin - #TB8029#TB8029--07”, Metal Fab Inc., March 2, 2007Wardflex Technical Bulletin
Photo Credits Bonded Lightning Protection, Argyle, TXCharles Ackerman, East Coast Lightning Equipment, Winsted, CTDonan Engineering Co., Louisville, KYWE Energies, “Corrugated Stainless Steel Tubing Policy RequirementsDavid McAfee, PE, SFPE, Fire Protection Engineering“Design and Installation Guide, Gastite Systems”, Titeflex Corp, November2008“Lightning Safety Recommendations for Gas Piping Systems”, Omegaflex,R b Cooper,RobertCAAssociatedi d LiLightningh i RodR d Company,CMillerton,MillN.Y.NYGoodsen, Mark, Hergenrether, Mark, “Investigating the Causal Link betweenLightning Strikes, CSST and Fires”, Fire and Materials 2005 DelegateHandbook San FranciscoHandbook,Francisco, CAWardflex Website, www.wardflex.comTracpipe Website, www.tracpipe.com
History Introduced to US in the early 1980's from Japan. First recognized by NFPA 54 (Nat'l Fuel Gas Code) i 1988in 1988. Int'l Association of Plumbing & Mechanical Officials(IAPMO) rejects CSST in 2000Officials(IAPMO) rejects CSST in 2000. IAMPO finally accepts CSST in 2003 into Uniform Plumbingg() Code(UPC) & Uniform Mechanical
