ASTM_F_478_-_14a.pdf

Designation:F47814aStandard Specification forIn-Service Care of Insulating Line Hose and Covers1This standard is issued under the fixed designation F478;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the in-service care,inspection,testing,and use voltage of insulating line hose and covers forprotection of workers from accidental contact with energizedelectrical wires or equipment.1.2 The following safety hazards caveat applies only to thetest method portion,Section 7,of this specification:Thisstandard does not purport to address all of the safety problems,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.Specific precautionary statements are givenin 7.2.1.2.Referenced Documents2.1 ASTM Standards:2D1049 Specification for Rubber Insulating CoversD1050 Specification for Rubber Insulating Line HoseD2865 Practice for Calibration of Standards and Equipmentfor Electrical Insulating Materials TestingF819 Terminology Relating to Electrical Protective Equip-ment for Workers2.2 ANSI Standards:C 84.1 Voltage Ratings for Electric Power Systems andEquipment(60 Hz)3C 39.5 Safety Requirements for Electrical and ElectronicMeasuring and Controlling Instrumentation32.3 IEEE Standard:IEEE Standard 4 Techniques for High Voltage Testing43.Terminology3.1 breakdownthe electrical discharge or arc occurringbetween the electrodes and through the equipment being tested.3.2 bulk storage the storage of hose or covers togetherwith one or more layers piled neatly,but without the benefit ofspacers,supports,or special protective containers.3.3 coveran electrically insulated enclosure designed tobe installed temporarily on various types of irregularly shapedelectrical equipment to protect personnel and equipment work-ing in the close proximity.3.4 designated personan individual who is qualified byexperience or training to perform an assigned task.3.5 distortedphysically changed from the natural andoriginal shape,caused by stress of any type.3.6 electrical testing facilitya location with qualifiedpersonnel,testing equipment,and procedures for the inspectionand electrical testing of electrical insulating protective equip-ment.3.7 electrodethe energized or grounded conductor portionof electrical test equipment which is placed near or in contactwith the material or equipment being tested.3.8 flashoverthe electrical discharge or arc occurring be-tween electrodes and over or around,but not through,theequipment being tested.3.9 hosean electrical insulating tube with a longitudinalslit designed to be installed temporarily on energized electricalwires.3.10 ozonea very active form of oxygen that may beproduced by corona,arcing,or ultraviolet rays.3.11 ozone cutting and checking cracks produced byozone in a material under mechanical stress.3.12 retestthe tests given after the initial acceptance test,usually performed at regular periodic intervals or as requiredbecause of physical inspection.3.13 voltage,maximum retestvoltage,either ac rms or dcaverage,that is equal to the proof test voltage for newprotective equipment.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 Nov.1,2014.Published December 2014.Originallyapproved in 1976.Last previous edition approved in 2014 as F478 14 DOI:10.1520/F0478-14A.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(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.4Available from Institute of Electrical and Electronics Engineers,Inc.,445 HoesLane,Piscataway,NJ 08854-4150.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.14 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.3.15 voltage,retest voltage,either ac rms or dc average,that used protective equipment must be capable of withstand-ing for a specific test period without breakdown.3.16 For definitions of other terms,refer to TerminologyF819.4.Significance and Use4.1 Compliance with this specification should continue toprovide personnel with insulating line hose and covers ofknown and acceptable quality after initial accepta