This standard specifies the basic electrical safety requirements for power production units and personnel working in power workplaces. This standard applies to all electrical equipment and related locations used by power generation enterprises with voltage levels of 66 kV and above; All electrical equipment and related places used by transmission, transformation, and distribution enterprises with voltage level facilities of 35kV and above; Electrical equipment and related places used by electricity consuming units with voltage levels of 220 kV and above. Other power enterprises and consumers can also refer to it for use. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 2900.20-1994 Electrotechnical Terminology, High Voltage Switchgear (IEC 60050 (IEV); 1994, NEQ) GB/T 2900,50-2008 Electrotechnical Terminology: Power Generation, Transmission and Distribution, General Terminology (IEC 60050-601-1985, MOD) 3 Terms and Definitions GB/T 2900.20-1994. GB/T 2900.50-2008 and the following terms and definitions apply to this document. 3.1 Electrical generation station is a factory that produces electrical energy consisting of buildings, energy conversion equipment, and all necessary auxiliary equipment. [GB/T 2900.5O-2008, Definition 2.3 601-03-01] 3.2 A substation (of a power system) is a part of a power system that is concentrated in a designated location, mainly including terminals of transmission or distribution lines, switches and control equipment, buildings, and transformers. This typically includes facilities required for power system security and control (such as protective devices). Note: According to the nature of the system containing a substation, a prefix can be added before the word substation to define it. For example: (a transmission system) transmission substation, distribution substation. 500 kV substation. 10 kV substation. [GB/T 2900.50-2008, Definition 2.3 601-03-02]
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
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1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
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