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Description of ASTM-F2522 2012ASTM F2522 - 12Standard Test Method for Determining the Protective Performance of a Shield Attached on Live Line Tools or on Racking Rods for Electric Arc HazardsActive Standard ASTM F2522 | Developed by Subcommittee: F18.35 Book of Standards Volume: 10.03 ASTM F2522Significance and Use 5.1 This test method is intended for determining the heat attenuation factor (HAF) of a shield material and the effective heat attenuation factor (EHAF) at the location of the worker. This can be obtained by measuring the reduction of the arc incident energy levels caused by a shield attached on a live line tool (hot stick) or on a racking rod and designed for protection for workers exposed to electric arcs. The shield mechanical strength (SMS) can be obtained from visual observations of the high speed video recordings of each shot during HAF tests. 5.1.1 Because of the variability of the arc exposure, different heat transmission values and pressure may result for individual sensors. The results of each sensor are evaluated in accordance with Section 12 . 5.2 This test method maintains the shield and the heat sensors in a static, vertical position and does not involve movement except that resulting from the exposure. 5.3 This test method specifies a standard set of exposure conditions. Different exposure conditions may produce different results.
Note 1 In addition to the standard set of exposure conditions, other conditions representative of the expected
hazard may be used and shall be reported should this data be cited.
1. Scope 1.1 This test method is used to determine the heat attenuation factor (HAF), the effective heat attenuation factor (EHAF), and the shields mechanical strength (SMS) of a shield attached on live line tools or racking rods intended for protection of workers exposed to electric arcs. 1.2 The materials used in this test method of worker protection are in the form of a shield attached on live line tools or on the racking rods. 1.3 The protective shield described in this test method shall be transparent and shall be easily attached and removed from live line tools or from racking rods. 1.4 The protective shield described in this test method has 24-in. (0.61-m) diameter and can be used for most applications, however for special cases, the shield can have different sizes to suit the protective requirements of the application. 1.5 This standard shall be used to measure and describe the properties of materials, products, or assemblies in response to incident energies (thermal-convective, and radiant and pressure wave) generated by an electric arc under controlled laboratory conditions and does not purport to predict damage from light, resultant pressure impact other than the pressure and thermal aspects measured. 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 standard shall not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire assessment, which takes into account all of the factors, which are pertinent to an assessment of the fire hazard of a particular end use. 1.8 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. For specific precautions, see Section 7 .
ASTM Standards D4391 Terminology Relating to The Burning Behavior of Textiles F1959/F1959M Test Method for Determining the Arc Rating of Materials for Clothing Keywords cone of protection; effective heat attenuation factor (EHAF); heat attenuation factor (HAF); protective performance of a shield; shield mechanical strength (SMS) value; ICS Code ICS Number Code 13.260 (Protection against electric shock. Live working) DOI: 10.1520/F2522-12 ASTM International is a member of CrossRef. ASTM F2522The following editions for this book are also available...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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