1、Designation:F179609(Reapproved 2014)Standard Specification forHigh Voltage DetectorsPart 1 Capacitive Type to be Usedfor Voltages Exceeding 600 Volts AC1This standard is issued under the fixed designation F1796;the number immediately following the designation indicates the year oforiginal adoption o
2、r,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 portable,live-line tool-supported,direct-contact type capac
3、itive voltage detectors tobe used on electrical systems both indoors and outdoors for acvoltages from 600 V to 800 kV with frequency of 60 Hz.Thefunction of the voltage detector is limited to the detection of thepresence or absence of nominal operating voltage.1.1.1 Two types of voltage detectors ar
4、e provided and aredesignated as Type I,audible/visual and Type II,numeric,withor without audible.1.1.2 Two styles of voltage detectors,differing in wetconditions characteristics,are provided and are designated asStyle A,indoor use and Style B indoor/outdoor use.1.2 The use and maintenance of these h
5、igh voltage detectorsand any necessary insulated tool handles are beyond the scopeof this specification.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and hea
6、lth practices and determine the applica-bility of regulatory limitations prior to use.NOTE1Except where specified,all voltage defined in this specifica-tion refer to phase-to-phase voltage in a three-phase system.Voltagedetectors covered by this specification may be used in other thanthree-phase sys
7、tems,but the applicable phase-to-phase or phase-to-ground(earth)voltages shall be used to determine the operating voltage.2.Referenced Documents2.1 ASTM Standards:2F819 Terminology Relating to Electrical Protective Equip-ment for Workers2.2 ANSI Standard:3ANSI C84.1 Voltage Ratings for Electric Powe
8、r Systemsand Equipment3.Terminology3.1 Definitions:3.1.1 capacitive voltage detectora device that relies oncurrent passing through stray capacitance to ground.3.1.2 clear indicationa specific condition that detects andindicates the voltage state at the contact electrode.3.1.3 clear perceptionthe abi
9、lity by the user to determinethat the voltage detector is in its operating position.3.1.4 contact electrodethe bare conductive part of theconductive element that establishes the electrical connection tothe component to be tested.3.1.5 indicatorpart of the voltage detector that indicatesthe presence
10、or absence of the nominal operating voltage or themeasured voltage at the contact electrode.3.1.6 indoor stylea detector designed for use in dryconditions,normally indoors.3.1.7 interference fieldelectrical field affecting the indica-tion.3.1.8 interference voltagevoltages other than the signalvolta
11、ge capable of making the device operate.3.1.9 limit markingdistinctive location or mark to indicateto the user the physical limit to which the detector may beinserted between live components or may touch them.3.1.10 nominal operating voltagea nominal value consis-tent with the latest revision of ANS
12、I C84.1.3.1.11 outdoor stylea detector designed for use eitherindoors or outdoors.3.1.12 response timetime delay between sudden change ofthe voltage state on the contact electrode and the associatedclear indication.3.1.13 testing elementbuilt in or external device,bymeans of which the functioning of
13、 the voltage detector can bechecked.1This specification is under the jurisdiction of ASTM Committee F18 onElectrical Protective Equipment for Workers and is the direct responsibility ofSubcommittee F18.35 on Tools&Equipment.Current edition approved Oct.1,2014.Published November 2014.Originallyapprov
14、ed in 1997.Last previous edition approved in 2009 as F1796-09.DOI:10.1520/F1796-09R14.2For 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
15、 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 3.1.14 threshold voltageminimum voltage between theline component and e
16、arth(ground)required to give a clearaudible or visual indication,or both;or numeric indication,corresponding to specific conditions as defined in correspond-ing test(see clear indication and clear perception).3.1.15 voltage detectora device for indicating the pres-ence or absence of nominal design or operating voltage or themeasured voltage.3.1.16 voltage,nominal designa nominal value consistentwith the latest revision of ANSI C84.1,assigned to the circuitor system for the purpose of convenientl
