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Description of ASTM-F712 2018ASTM F712-06-Reapproved2018Historical Standard: Standard Test Methods and Specifications for Electrically Insulating Plastic Guard Equipment for Protection of WorkersASTM F712Scope 1.1 These test methods cover three electrical tests on plastic guards and assembled guard systems. They are: 1.1.1 Method A—Withstand voltage proof test, 1.1.2 Method B—Flashover voltage, and 1.1.3 Method C—Leakage current. 1.1.4 This specification covers plastic guard equipment and guard systems used by workers for temporary insulation on electric power circuits. 1.1.5 Plastic guard equipment covered by this specification is rated for momentary, or brush contact only. Maximum-use voltages are covered in Table 1 and Table 2.
(A) Cover-up materials are tested at values greater than the maximum use phase to ground values. The maximum
use phase to phase values relate to guarded phase to guarded phase. The units are not rated for bare phase to guarded phase potentials.
(A) Cover-up materials are tested at values greater than the maximum use phase to ground values. The maximum
use phase to phase values relate to guarded phase to guarded phase. The units are not rated for bare phase to guarded phase potentials.
1.2 These test methods cover, but are not limited to, the following typical guards: 1.2.1 Conductor Guards and Connecting Covers as follows: 1.2.1.1 Line guards, 1.2.1.2 Line guard connectors, 1.2.1.3 Insulator covers, 1.2.1.4 Dead-end covers, 1.2.1.5 Bus guards, and 1.2.1.6 Bus “T” guards. 1.2.2 Structure and Apparatus Covers as follows: 1.2.2.1 Pole guards, 1.2.2.2 Ridge pin covers, 1.2.2.3 Switch blade covers, 1.2.2.4 Arm guards, 1.2.2.5 Cutout covers, 1.2.2.6 Structural barriers, and 1.2.2.7 Cross arm guard. 1.3 It is common practice for the user of this equipment to prepare instructions for the correct use and maintenance. 1.4 The use and maintenance of this equipment is beyond the scope of these test methods. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. Keywords electrical protective equipment; electrically insulating plastic guard equipment; plastic guard equipment; ICS Code ICS Number Code 13.260 (Protection against electric shock. Live working) DOI: 10.1520/F0712-06R18 This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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