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Discussion on laying mode of 35kV and above single core cable When a single core cable above 35kV is running, its shielding layer will generate induced electromotive force. When the cable length and working current are large, the induced voltage may reach a large value. The induced voltage is the smallest when the cable is arranged in a tight triangle. When the distance between cable phases increases and the relative position changes, the induced voltage will change accordingly. Through comparison and analysis -
GB_50217-2007 Specification for Power Cable Laying This document introduces various laying methods of indoor and outdoor power cables in detail, which is convenient for designers to compare and select designs. -
Construction Specification for CPVC Cable Protection Pipe Construction Specification for CPVC Cable Protection Pipe -
Requirements and specifications for cable tray installation As a supporting project of wiring engineering, there is no special specification and guidance for cable tray at present, and the specifications and procedures of various manufacturers are not universal. Therefore, the design and selection process should reasonably select the appropriate cable tray according to the type and quantity of cables in each weak current system. -
94D101-5 Cable Laying at 35KV and Below 94D101-5 Atlas of Cable Laying at 35KV and Below, 94D101-5 Atlas of Cable Laying at 35KV and Below -
Cable tray installation requirements and specifications 1. As a supporting project of wiring engineering, there is no special specification and guidance for cable tray at present -
94D101-5_35KV and below cable laying This information is about cable laying of 94D101-5_35KV and below. The information is detailed and can be used for reference. Thank you. -
Cable laying method and relevant knowledge Laying through welded steel pipe: SC laying through wire pipe: MT laying through hard plastic pipe: PC laying through flame-retardant semi hard PVC pipe: FPC cable bridge laying: CT wiring engineering process: piping threading in pipe 1) The project is a concealed pipeline, and the lines laid in the ceiling of decorated combustible materials, exposed in wet places or buried underground shall be metal -
Cable tray and cable laying in tray The metal cable tray and its support, as well as the incoming or outgoing metal cable conduit, must be reliably grounded (PE) or connected to neutral (PEN). The metal cable tray and its support shall be connected to the grounding (PE) or neutral (PEN) trunk line at no less than 2 places. The two ends of the connecting plate between non galvanized cable trays are bridged with copper core grounding wires, and the minimum allowable sectional area of the grounding wire is not less than 4m -
Cable laying table of electric repair instrument workshop This data is: cable laying table of electric repair instrument workshop, 1 page in total, detailed and accurate, for reference. -
94D164.35kV and below cable laying This document is about cable laying of 94D164.35kV and below. The contents are detailed and specific for reference. -
Technical disclosure of cable laying safety Cable laying safety technical disclosure. doc, which is detailed and rich, can be downloaded by netizens. -
12D101-5 Laying of 110kV and Below Cables 12D101-5 Cable Laying at 110kV and Below 12D101-5 Cable Laying at 110kV and Below 12D101-5 Cable Laying at 110kV and Below 12D101-5 Cable Laying at 110kV and Below 12D101-5 Cable Laying at 110kV and Below 12D101-5 Cable Laying at 110kV and Below 12D101-5 1 -
Cable laying inspection record of a project This document is the cable laying inspection record of a project. The contents are complete and can be downloaded -
12D101-5: 110kV and below cable laying PDF HD full version, 12D101-5: cable laying of 110kV and below -
Technical disclosure of mineral cable laying Be familiar with the construction drawings, understand the model, specification and length of mineral insulated cables used in each circuit, how many intermediate connections are required in the middle, and the drawing description and specific laying methods and places. -
Cable tray installation requirements and specification guidance As a supporting project of wiring engineering, there is no special specification and guidance for cable tray at present, and the specifications and procedures of manufacturers are not universal. Therefore, the design and selection process should reasonably select the appropriate cable tray according to the type and quantity of cables in each system of weak current. -
94D164 35KV and below cable laying This information is about cable laying of 94D164 35KV and below. The information is detailed and can be used for reference. Thank you. -
94X104 underground communication cable laying This information is about 94X104 underground communication cable laying. The information is detailed and can be used for reference. Thank you. -
Cable laying completion data scheme High voltage: one new metering device and one metering CT. Civil engineering station: ZRRYJLV22-3 * 240 (450M * 2) is newly installed from 1 # civil engineering station to 2 # civil engineering station, and 150mm plastic coated steel pipe 20M * 2 is newly installed. New S11-1600KVA+800KVA high-voltage motor/10KV civil substation -
Cable tray and cable laying scheme in tray The metal cable tray and its support, as well as the incoming or outgoing metal cable conduit, must be reliably grounded (PE) or connected to neutral (PEN). The metal cable tray and its support shall be connected to the grounding (PE) or neutral (PEN) trunk line at no less than 2 places. -
House building technical disclosure cable laying process This document is about the technical disclosure of the cable laying process of the building construction, which is detailed and can be downloaded for reference. -
HD 12D101-5_110KV and below cable laying High definition atlas-12D101-5_110KV and below cable laying, detailed content, available for reference and download. -
Technical disclosure of cable laying in a residential building 1.1 Requirements for equipment and materials: 1.1.1 All material specifications, models and voltage levels shall meet the design requirements and have product certificates. 1.1.2 Cable specification, model, voltage grade, length and ex factory date shall be marked on each axle of cable. The cable shaft shall be intact. 1.1.3 The cable appearance is intact, without mechanical damage, obvious fold and distortion -
Construction organization of cable laying works 1. Cable construction drawing. Design and construction drawings related to cable installation and construction include: design description, electrical system diagram, construction plan, construction section, electrical interconnection line diagram and cable list (1) design description. From the design description, we can understand the general situation of the power transmission and distribution process, power transmission and distribution lines and laying methods of the project, which is instructive for understanding the cable construction drawings -
Detailed cable laying construction organization This scheme belongs to the cable laying and installation scheme of a project in Beijing -
Cable laying construction organization of a project 1. 1 Carefully get familiar with and review the construction drawings, understand the design intent, and carry out cable laying in strict accordance with the requirements of the drawings; 1.2 The cable must be reported to the supervisor for strict inspection, and construction can be started only after it is qualified; 1.3 Technical disclosure shall be made to the construction team according to the project situation; 1.4 Divide the construction flow section according to the actual situation of the project, and determine the labor force based on this -
Wire and cable laying organization of a project 1. The crimping method should be used for the connection of wires in boxes and boxes. Terminal blocks, copper (aluminum) sleeves, wire clamps, etc. can be used for connection. Copper core wires can also be connected by tin lining after winding. Single strand aluminum core wires should be connected by insulated screw connectors. Fusion welding connection is prohibited. 2. The connection between wires and electrical appliance terminals is prohibited. Single strand copper (aluminum) core and conductor interface are 2.5mm2 and -
Wire and cable laying scheme of a project The content briefly introduces the wire and cable laying scheme of a project. -
Technical disclosure of bridge installation and cable laying The appearance inspection shall meet the following requirements: the weld surface shall be flat and free of large depression and overlap; There shall be no crack at the joint; The weld width of Φ 16mm rebar joint shall not be less than or exceed 11~12mm, and the weld height shall not be less than or exceed 5~6mm; The weld width of Φ 12mm rebar joint shall not be less than or exceed 9~10mm, and the weld height shall not be less than or exceed 4 -
Concealed records of cable laying construction Construction drawing number of environmental unit project of the construction unit of the construction unit Electrical construction part System/circuit number Model and specification Laying method Hidden quantity Remarks -
Subdivisional works of wire, cable and trunking laying The low-voltage complete distribution cabinet, control cabinet (panel, table) and power and lighting distribution box (panel) shall be provided with reliable electric shock protection. The protective conductor in the cabinet (panel, platform, box, panel) shall have exposed terminals connected with the external protective conductor. When there is no design requirement, the minimum sectional area Sp of the protective conductor in the cabinet (panel, platform, box, panel) shall not be less than that specified in the attached table. -
Concealed laying record of directly buried cable This document is a record of concealed laying of directly buried cables. The contents are complete and can be downloaded -
Concealed laying record of a directly buried cable This document is a record of concealed laying of a direct buried cable. The contents are complete and can be downloaded -
Requirements and specifications for cable tray grounding This document includes: 1. Grounding requirements and corresponding specifications for metal bridge; 2. Grounding methods under various conditions -
Cable laying and insulation resistance test record Unit (sub unit) project name, construction date, construction unit, supervision unit -
10CD106 aluminum alloy cable laying and installation This document is about 10CD106 aluminum alloy cable laying and installation, which is detailed and can be used for reference. -
Safety technical disclosure of electrical cable laying Safety technical disclosure of electrical cable laying. doc, which is detailed and rich, can be downloaded by netizens. -
Cable laying construction organization scheme Cable laying construction organization scheme Cable laying construction organization scheme Cable laying construction organization scheme -
99D101-6 Mineral insulated cable laying 99D101-6 mineral insulated cable laying content is rich and detailed, and can be downloaded for reference and learning by netizens.
