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Description of ASTM-F855 2004ASTM F855-04Historical Standard: Standard Specifications for Temporary Protective Grounds to Be Used on De-energized Electric Power Lines and EquipmentASTM F855Scope 1.1 These specifications cover the equipment making up the temporary grounding system used on de-energized electric power lines, electric supply stations, and equipment. 1.2 It is common practice for the users of protective grounding equipment to prepare complete instructions and regulations to govern in detail the correct use and maintenance of such equipment. 1.3 The uses and maintenance of this equipment are beyond the scope of these specifications. 1.4 These specifications for a system of protective grounding utilizing copper cables are covered in four parts, as follows:
1.5 Each of the four parts is an entity of itself, but is listed as a part of the system for completeness and clarification. 1.6 The values stated in Newton-Meter units are to be regarded as the standard. The values in parentheses are the inch-pound units. 1.7 Currents presented in Table 1 and Table 2 are based upon cable melting times, as determined from equations by I. M. Onderdonk. See Appendix X3. 1.7.1 Currents presented in were determined by use of EPRI Project RP2446 Computer Program RTGC "A Desktop Computer Program for Calculating Rating of Temporary Grounding Cables." 1.7.2 See Appendix X3 and Appendix X4 for a discussion of these values. The following precautionary caveat pertains to the test method portions, Sections 12 and 25 of these specifications: 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 and health practices and determine the applicability of regulatory limitations prior to use. Keywords equipment; computer program; grounding ICS Code ICS Number Code 29.120.50 (Fuses and other overcurrent protection devices) DOI: 10.1520/F0855-04 The following editions for this book are also available...
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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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