ASTM_F_1742_-_03_2011.pdf

Designation:F174203(Reapproved 2011)Standard Specification forPVC Insulating Sheeting1This standard is issued under the fixed designation F1742;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 acceptance testing of PolyVinyl Chloride insulating sheeting for use as a covering forprotection of workers.1.2 The following safety hazards caveat applies only to thetest method 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 limita-tions prior to use.See 18.1 for a specific warning statement.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 ElastomersTensionD570 Test Method for Water Absorption of PlasticsD747 Test Method for Apparent Bending Modulus of Plas-tics by Means of a Cantilever BeamD1004 Test Method for Tear Resistance(Graves Tear)ofPlastic Film and SheetingD1048 Specification for Rubber Insulating BlanketsD1746 Test Method for Transparency of Plastic SheetingD2240 Test Method for Rubber PropertyDurometer Hard-ness2.2 American National Standard:3ANSI C84.1 Voltage Ratings for Electric Power Systemsand Equipment(60 Hz)3.Terminology3.1 Definitions:3.1.1 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.3.1.1.1 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.3.1.1.2 DiscussionIf electrical equipment and devices areinsulated,or isolated,or both,such that the multiphase expo-sure on a grounded wye circuit is removed,then the nominaldesign voltage may be considered as the phase-to-groundvoltage on that circuit.3.1.2 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 minimum electrical andphysical properties guaranteed by the manufacturer and thedetailed procedures by which such properties are to be deter-mined.The purchaser may at his option perform or haveperformed any of these tests in order to verify the guarantee.Claims for failure to meet the specification are subject toverification by the manufacturer.NOTE1This material is intended for a single use application.4.2 The safe and proper field use of PVC sheeting is beyondthe scope of this specification.4.2.1 When authorizing use of PVC sheeting for personalprotection,a margin of safety should be allowed between themaximum voltage at which it is used and the proof-test voltageat which it is tested.The relationship between proof-test andthe maximum voltage at which sheeting shall be used is shownin Table 1.5.Classification5.1 PVC insulating sheeting covered under this specificationshall be designated as Class 0 or Class 1.1This 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 1996.Last previous edition approved in 2003 as F1742 0301.DOI:10.1520/F1742-03R11.2For 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.3Available from American National Standards Institute,11 West 42nd St.,13thFloor,New York,NY 10036.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.1.1 The class designation shall be based on the electricalproperties as shown in Table 2 or Table 3.6.Ordering Information6.1 Orders for PVC insulating sheeting under this specifi-cation should include the following information:6.1.1 Class,6.1.2 Thickness,6.1.3 Width,and6.1.4 Length.7.Manufacture and Marking7.1 The insulating sheet shall consist of a clear PVCcompound with a smooth,polished finish on each surface(seeFig.1).7.2 Each piece of sheeti