This standard specifies the technical conditions, test methods, inspection rules and markings, packaging, transportation, and storage of composite grounding electrodes (hereinafter referred to as grounding electrodes). This standard is applicable to grounding conductors used for grounding protection in power, radio and television, postal and telecommunications, petroleum, chemical engineering, construction, national defense engineering, meteorology, earthquake, and other fields. This standard does not apply to grounding electrodes formed by on-site construction using metal materials and resistance reducing materials. 2 Normative References: The clauses in the following documents become clauses of this standard through reference in 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 528-1992 Determination of Tensile Properties of Vulcanized Rubber and Thermoplastic Rubber (eqv ISO 37; 1994) GB/T 531-1992 Shore A Hardness Test Method for Vulcanized Rubber (idt 1SO 76191986) GB/T 2439 Method for Determining Electrical Resistivity (Coefficient) of Conductive and Anti static Rubber (GB/T 2439-2001, idt 1SO 1853:1998) GB/T 2900.1 Electrotechnical Terminology (GB/T 2900.1-1992, neq 1EC 50) GB/T 16927.1 High Voltage Testing Techniques, Part 1: General Test Requirements (GB/T 16927.1-1997, eqv IEC 60-1:1989) GB/T 16927.2 High Voltage Testing Techniques, Part 2: Measurement Systems (GB/T 16927.2-1997. eqv TEC 60-2:1994) 3 Terms and Definitions Established in GB/T 2900.1-1992 and the following content and definitions apply to this standard. 3.1 Composite grounding device is a new type of grounding device composed of conductive non-metallic materials, electrolyte materials, and composite fillers, which can significantly reduce power frequency grounding resistance and resist erosion by factors such as water, salt, acid, and alkali in the soil. Note: Non metallic materials refer to materials mainly composed of non-metallic materials. Non metallic materials with copper, nickel, and other alloys on their surfaces and conductive metal materials attached to them are also considered non-metallic materials
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