This standard specifies the classification, materials, technical requirements, test methods, inspection rules, storage, and transportation of insulated ropes for live working. This standard applies to insulation rope materials used for live working on electrical equipment of various voltage levels of AC and DC. The clauses in the following normative references become the clauses of this standard through the reference surface of this standard. For dated reference documents, all subsequent amendments (excluding corrected content) or revisions are not applicable to this standard. However, parties to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this standard. GB/T 14286: Terminology of Live Working Tools and Equipment (GB/T 14286-2008, IEC 60743:2001, MOD) GB/T 16927.1 High Voltage Test Techniques, Part 1: General Test Requirements (GB/T 16927.1-1997, eqv IEC60060-1:1989) DL/T 974 Tool Warehouse for Live Working 3 Definitions GB/T 14286 and the following terms and definitions apply to this standard. 3.1 Diameter of rope The diameter of the outer tangent circle of the rope under tension measurement. 3.2 Measuring tension The tension applied to the rope when measuring its characteristics. 3.3 Breaking strength The maximum tension obtained when a rope breaks. 3.4 Elongation When the applied tension increases from the measured tension value to 75% of the specified value of the rated breaking strength of the rope, the rate of increase in the length of the rope. 3.5 Conventional insulated ropes are ropes made of natural or synthetic fiber materials that have good electrical insulation performance in a dry state. 3.6 Damp resistant insulating rope is made of natural or synthetic fiber materials, which have undergone specialized moisture-proof treatment and still have good electrical insulation performance under high humidity conditions
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