1 General Provisions
1.0.1 This code was formulated with view to strengthening the quality management of electrical construction installation in metallurgy, unifying the constructional quality acceptance and guaranteeing the project quality.
1.0.2 This code is applicable to the acceptance of the construction quality of constructed, extended and renovated electrical construction installation project, at the rated voltage of 500kV or below, of metallurgy enterprises. The acceptance of electrical construction introduced overseas shall be implemented according to the contract provisions.
1.0.3 In the project technical document and contract agreement document adopted in the project construction of electrical construction installation in metallurgy, the requirements for construction quality acceptance shall not be lower than those specified in this Code.
1.0.4 The quality acceptance of electrical construction installation in metallurgy project shall meet the provisions stated in current relevant national standards in addition to this Code.
2 Basic Requirements
2.1 General Requirements
2.1.1 The engineering construction of electrical construction installation in metallurgy shall be provided with corresponding technical standard for construction, complete quality management system, construction quality inspection system and evaluation & rating system for the comprehensive construction quality level. Inspection and record may be conducted according to the requirements of Table A.0.1 in Appendix A of this Code.
1 Installation electrician, welder, hoist slinger and electrical commissioning personnel etc. shall take their posts with certificates according to the relevant requirements.
2 Various measuring instruments for installation and commissioning shall be qualified in the calibration, and shall be within the validity period of calibration in service.
2.1.2 The engineering construction of electrical construction installation in metallurgy shall be organized according to construction organization design and construction scheme and construction technical scheme shall be prepared for complicated and critical installation and test work. Technical disclosure shall be conducted to the constructors before construction.
2.1.3 The electrical equipment, appliance and materials with the rated voltage AC of 1kV or below and the DC of 1.5kV or below are low voltage ones; those with the rated voltage greater than AC 1kV and DC 1.5kV are high-voltage ones.
2.1.4 The measuring instrument on the electrical equipment and the instrument related to electric protection shall be qualified in the calibration and shall be within the validity period where put into test run.
2.1.5 The hand-over test of electrical installation in metallurgy shall meet those specified in the current national standard "Standard for Hand-over Test of Electric Equipment Installation Project" (GB 50150).
2.1.6 All the equipment and materials applied in the project shall meet the requirements of the current national standard and be provided with certificates. The equipment shall be provided with nameplate. The new equipment and new materials without a standard shall be provided with certificate documents obtained for admission according to legal procedures. The equipment and materials introduced overseas shall meet the contract provisions.
2.1.7 Engineering construction of electrical construction installation in metallurgy shall meet the requirements of the design document and this Code as well as those of the installation and operating instructions. The modification to the design must be confirmed in the document of the original designer.
2.1.8 The electrical line laying and electrical construction installation in explosive-risk places are only applicable to the electrical installation project in the physical environment where gaseous, vaporous, dust and fiber explosive mixture and fire hazard appear or possibly appear in the process of production, processing, treatment, transportation or storage within the metallurgical plant. They are not applicable to subterranean part of underground mine or the environment where such explosive substances as gunpowder, explosive and initiating explosive are applied and stored.
2.1.9 Electrical equipment installation in fire hazard places is only applicable to the electrical installation engineering in the physical environment where fire hazard appear or possibly appears in the process of production, processing, treatment, transportation or storage within range of the metallurgical plant.
2.2 Inspection of Main Equipment and Materials
Foreword I
1 General Provisions
2 Basic Requirements
2.1 General Requirements
2.2 Inspection of Main Equipment and Materials
2.3 Classification for Quality Inspection of Electrical Construction Installation in Metallurgy
2.4 Installation Quality Acceptance of Electrical Construction in Metallurgy
2.5 Procedure and Organization for Quality Acceptance of Electrical Construction Installation in Metallurgy
2.6 Completion Acceptance Data
3 Installation of High Voltage Electrical Apparatus
3.1 Dominant Items
3.2 General Items
4 Installation of Power Transformer
4.1 Dominant Items
4.2 General Items
5 Mutual Inductor, Reactor, Arrester and Condenser Installation
5.1 Dominant Items
5.2 General Items
6 Rotating Motor Installation
6.1 Dominant Items
6.2 General Items
7 Installation of Switchboard and Complete Cubicle
7.1 Dominant Items
7.2 General Items
8 Storage Battery Installation
8.1 Dominant Items
8.2 General Items
9 Low Voltage Apparatus Installation
9.1 Dominant Items
9.2 General Items
10 Installation of Crane Electric Equipment
10.1 Dominant Items
10.2 General Items
11 Installation of Sliding Contact Wire and Traveling Flexible Cable
11.1 Dominant Items
11.2 General Items
12 Installation of Busbar Devices
12.1 Dominant Items
12.2 General Items
13 Cable Line
13.1 Dominant Items
13.2 General Items
14 Laying of Open Pit Lines
14.1 Dominant Items
14.2 General Items
15 Laying of Cable under the Mine
15.1 Dominant Items
15.2 General Items
16 Installation of Cable Bracket and Bridge
16.1 Dominant Items
16.2 General Items
17 Preparation of the Cable Terminal and Joint
17.1 Dominant Items
17.2 General Items
18 Installation of Overhead Line and Pole-mounted Electrical Equipment
18.1 Dominant Items
18.2 General Items
19 Installation of Traction Network
19.1 Dominant Items
19.2 General Items
20 Piping and Wiring
20.1 Dominant Items
20.2 General Items
21 Installation of Electrical Lighting Device
21.1 Dominant Items
21.2 General Items
22 Installation of Under-mine Lighting Fixture and Distribution Box
22.1 Dominant Items
22.2 General Items
23 Installation of Lightning Rod (Network) and Earthing Device
23.1 Dominant Items
23.2 General Items
24 Electric Circuit Laying at Explosive hazardous area
24.1 Dominant Items
24.2 General Items
25 Electrical Equipment Installation in Explosion Area
25.1 Dominant Items
25.2 General Items
26 Electrical Equipment Installation in Fire Hazardous Area
26.1 Dominant Items
26.2 General Items
Appendix A On-site Quality Inspection and Acceptance Record
Appendix B Material and Electrolyte Standard for Storage Battery
Appendix C Requirements for Overlap Joint of Rectangular Busbar
Appendix D Safe Clear Distance of Power Distribution Devices
Appendix E Minimum Clearance between Buried Cables and when Cables are Parallel to and Cross with Pipe, Highway and Building
Appendix F Classification of Explosive and Fire Hazardous Areas
Explanation of Wording in this Code
