1、Designation: F1564 13Standard Specification forStructure-Mounted Insulating Work Platforms for ElectricalWorkers1This standard is issued under the fixed designation F1564; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of
2、 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 the design testing of mechani-cal and electrical characteristics of structure-mounted insul
3、at-ing work platforms used by electrical workers.1.2 Platforms covered by this specification are singleworkerplatforms not exceeding 9 ft (2.75 m) in length. Platformsdesigned to support more than one worker at a time are beyondthe scope of this specification.1.3 Non-insulating platforms are not wit
4、hin the scope of thisspecification.1.4 The use and maintenance of this equipment are beyondthe scope of this specification.1.5 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for informatio
5、n onlyand are not considered standard.1.6 The following safety hazards caveat pertains only to thetest method portion, Section 9 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 sta
6、ndard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2F711 Specification for Fiberglass-Reinforced Plastic (FRP)Rod and Tube Used in Live Line ToolsF819 Terminology Relating to Elec
7、trical Protective Equip-ment for Workers3. Terminology3.1 Definitions:3.1.1 Refer to Definitions F819 for definitions of termsspecific to this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 design testa type of test made on a sample treated asrepresentative of an industrial p
8、roduct. These tests will not berepeated in quantity production.3.2.2 discontinuitiesabrupt changes in surface that maytrip an electrical worker or otherwise introduce a hazard to theworker (see 8.1).3.2.3 insulating distancethe distance from the structureattachment point to the beginning of the work
9、 area of theplatform.4. Significance and Use4.1 Insulating work platforms covered by this specificationare designed to be used by electrical workers in conjunctionwith personal protective equipment while working on ener-gized circuits. This shall include, but not be limited to:4.1.1 Insulating glove
10、s with protectors or insulating andinsulated hotsticks, or both.4.1.2 A fall protection device that does not compromise theelectrical insulating protection of the platform.4.2 The test procedures in this specification provide anobjective means of determining if a platform meets minimumelectrical and
11、 mechanical specifications. The methods permittesting of major components of the platform under controlledconditions.4.3 The test procedures utilize objective criteria for evalu-ation and may be discontinued at any time defects are found.5. Ordering Information5.1 Orders for platforms under this spe
12、cification shouldinclude the following information:5.1.1 Length,5.1.2 Pivot or non-pivot attachment, and5.1.3 Single-point or rail-type attachment for worker.6. Manufacture and Marking6.1 Each platform covered by this specification shall bemarked clearly and permanently with the maximum working1This
13、 specification is under the jurisdiction of ASTM Committee F18 onElectrical Protective Equipment for Workers and is the direct responsibility ofSubcommittee F18.35 on Tools the surface between electrodes does not increase in tempera-ture; and when using ground return metering and shieldedelectrode s
14、ystem with a shield (guard) electrode over theleakage current pick-up electrode, the maximum leakage cur-rent is less than or equal to 100 a at 100-kV ac. The shield(guard) electrode shall be grounded and insulated/isolated fromthe platform board and from the pick-up electrode.9.1.1.2 The electrodes
15、 shall be two spiral springs,12 to 1-in. (12.7 to 25-mm) diameter. Wind each spring of spring steelwire, 40 6 10 thousandths in. (1 mm) in diameter. Theelectrode supports shown in Fig. 2 shall be non-conductive andthe edges near the platform board shall be lined with flat copperFIG. 1 Platform Requi
16、rementsF1564 132braid, metal foil, etc. to make contact with the platform board.Wrap the springs around the platform board so spring contactis maintained on the entire surface. When applied across thetest specimen, the distance between individual coils of a springshall be less than 0.25 in. (0.64 cm
17、).9.1.1.3 Attach the test leads to the springs making sure allsharp edges remain inside the springs. Use high-voltage cablesuch as metal conductor spark plug wire for the power lead anduse shielded cable, similar to RG-58, for the ground lead.Attach the inner conductor of the shielded cable to the p
18、ick-upelectrode spring and to the ground return meter of the meteringcircuit. Strip back 2 in. (5.08 cm) of the shield and float theshield on the spring end. Attach the shield to the ground lug onthe test set.NOTE 2Use a true RMS meter with a crest factor of seven or greater.9.1.1.4 Apply potential
19、to the test segment. Increase thevoltage gradually (less than or equal to 10 kV per second) to100 kV and maintain for 5 min. Read the maximum leakagecurrent indicated by the ground return meter. A leakage inexcess of 100 a at 100-kV ac signifies a failure. The platformboard shall be rejected for a f
20、ailure of any test segment.9.1.2 The nonskid finish areas (see 6.2) of the platform shallwithstand a proof test ac voltage of 30 kV per foot (30.48 cm)for 5 min.9.1.3 An acceptable dielectric test setup is illustrated in Fig.2.9.2 Mechanical Test:9.2.1 Test each platform design mechanically in accor
21、dancewith the following subsections.9.2.1.1 Install the platform and its associated mountinghardware on a rigid test structure allowing the measurement ofthe deflection of the platform under controlled loading. Ifsupport or brace poles are used, set them at the limit ofacceptable angles that will ap
22、ply the maximum stress to thepivot point and attachments.9.2.1.2 Attach the load to the platform at a point 2 in. (5.08cm) from the outer end and distributed over an area not toexceed 30 in.2(193.56 cm2). Increase the load in pounds at amaximum rate of 1000 lb (453.60 kg) per minute until theworking
23、 load of the device is reached. At working load,deflection shall not exceed 1 in. (2.54 cm) per foot (30.48 cm)of overall length, with a maximum deflection of 4 in. (10.16cm).9.2.1.3 After recording the data at working load, the load onthe same platform shall be increased to two and one half (2.5)ti
24、mes working load at the same rate and held for 5 min. Theplatform shall withstand this loading without visible damagesuch as cracks, delamination, permanent deformation, or dis-coloration.FIG. 2 Insulating Segment of PlatformF1564 1339.2.1.4 The platform shall withstand two and one half (2.5)times w
25、orking load at all brace pole angles and pivotalmounting angles without visible damage such as cracks,delamination, permanent deformation, or discoloration.9.2.1.5 A worker positioning device and its attachment tothe platform shall withstand a static load test of 500 lb (226.8kg) in any direction wi
26、thout visible signs of damage.10. Inspection and Certification10.1 Each platform manufactured and inspected under thisspecification shall also be inspected for workmanship andquality by the supplier.10.2 When specified in the purchase order or contract, aproducers or suppliers certification shall be
27、 furnished to thepurchaser certifying that the product by specific serial numberhas been manufactured in accordance with this specificationand has been found to meet the requirements.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any ite
28、m mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical comm
29、ittee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a m
30、eeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive
31、, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).F1564 134
