ASTM_F_2320_-_11.pdf

Designation:F232011Standard Specification forRubber Insulating Sheeting1This standard is issued under the fixed designation F2320;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers testing of rubber insulatingsheeting for use as a covering for the protection of workersfrom accidental contact with live electrical conductors,appa-ratus,or circuits.1.2 Two types of sheeting,differing in chemical and physi-cal characteristics,are provided and are designated as Type I,non-resistant to ozone and Type II,resistant to ozone.1.3 Six classes of sheeting,differing in electrical protectioncharacteristics are provided and designated as Class 00,Class0,Class 1,Class 2,Class 3,Class 4.1.4 Two styles of sheeting,differing in construction charac-teristics,are provided and are designated as Style A and StyleB.1.5 The follow safety hazards caveat applies only to the testmethod portion,Sections 17-19,of this specification.Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory require-ments prior to use.NOTE1Rubber Insulating Sheeting should remain flexible for usethrough normal temperature ranges.NOTE2Rubber as used in this specification is a generic term thatincludes elastomers and elastomeric compounds,regardless of origin.2.Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD471 Test Method for Rubber PropertyEffect of LiquidsD518 Test Method for Rubber DeteriorationSurfaceCracking(Withdrawn 2007)3D570 Test Method for Water Absorption of PlasticsD751 Test Methods for Coated FabricsD1048 Specification for Rubber Insulating BlanketsD1149 Test Methods for Rubber DeteriorationCracking inan Ozone Controlled EnvironmentD1388 Test Method for Stiffness of FabricsD2136 Test Method for Coated FabricsLow-TemperatureBend TestD2240 Test Method for Rubber PropertyDurometer Hard-ness2.2 Other Standards:MVSS 302 Motor Vehicle Safety Standard 302 Flammabil-ity of Interior Materials4UL 214 Standard for Tests for Flame-Propagation of Fabricsand Films5ANSI C84.1 Voltage Ratings for Electric Power Systems andEquipment(60 Hz)63.Terminology3.1 Definitions:3.1.1 userthe entity employing the actual worker(s)uti-lizing the equipment;if no separate employer,then the indi-vidual.3.1.2 voltage,maximum usethe ac voltage(rms)classifi-cation of the protective equipment that designates the maxi-mum nominal design voltage of the energized system that maybe safely worked.The nominal design voltage is equal tophase-to-phase voltage on multiphase circuits.3.1.2.1 DiscussionIf there is no multiphase exposure in asystem area,and the voltage exposure is limited to phase(polarity on dc systems)to ground potential,the phase(polarityon dc systems)to ground potential shall be considered to be thenominal design voltage.1This specification is under the jurisdiction of ASTM Committee F18 onElectrical Protective Equipment for Workers and is the direct responsibility ofSubcommittee F18.25 on Insulating Cover-Up Equipment.Current edition approved May 1,2011.Published June 2011.Originallyapproved in 2003.Last previous edition approved in 2003 as F232003.DOI:10.1520/F2320-11.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from the U.S.Department of Transportation,400 7th Street SW,Room 6111,Mail Code:NSA-30,Washington,DC 20590.5Available from Underwriters Laboratories(UL),Corporate Progress,333Pfingsten Rd.,Northbrook,IL 60062.6Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.2.2 DiscussionIf the electrical equipment and devicesare insulated or isolated or both,such that the multiphaseexposure on a grounded wye circuit is removed,then thenominal design voltage may be considered as the phase-to-ground voltage on that circuit.3.1.3 voltage,nominal designa nominal value consistentwith the latest revision of ANSI C84.1,assigned to the circuitor system for the purpose of conveniently designating itsvoltage class.4.Significance and Use4.1 This specification covers the mini