Pre-branch cable is a new technology product in recent years. The branch line factory is pre-manufactured on the trunk cable. The branch line cross-section size and branch line length are determined according to the design requirements, which greatly shortens the construction period and significantly reduces material costs. And construction costs, to ensure greater reliability of distribution.
advantage:
Can significantly reduce distribution costs
(1)Compared with the closed busway, the price is cheaper to reduce the project cost, and the economic index is high, the comprehensive benefits are obvious, and the specifications are complete, and the selection is flexible. Any combination (2) The branch head is based on the needs of the distribution point of the distribution system. branch location can be set <br> <br> installation environment requires low and easy construction
(1) The occupied building area is small and there is no requirement for the space size of the civil works. (2) The laying is simple, the installation is convenient, and the use environment is low. It can be laid directly in the cable trench, in the special cable shaft of the building, or it can be laid in different Cable bridge, the installation accuracy is low (3)Compared with the closed busway, the cable walks freely, the bending radius is small, greatly reduces the construction difficulty, reduces the space size (4) The installation labor intensity is small, the construction period is short, only excellent one-tenth of <br> when closed busbar installation <br> shock resistance, air tightness, water and fire resistance
(1) It has excellent shock resistance, and is generally enclosed mechanically connected to a busway. Because it is installed parallel to the wall, when the wall is closed, the joints that close the busway are loose, and the prefabricated branch cable is not affected. In particular, it does not require any measures when passing through the settlement joints of buildings. (2) Good airtightness, waterproofness, normal power supply operation in a humid environment, and it can also be laid in open air and buried in soil. (3) Fire-resistant type prefabricated branch cable in the case of combustion, to maintain normal power transmission 90Min <br> <br> maintenance-free operation
(1) and the branch cable predetermined mounting method, one-time opening rate (2) prefabricated branch cable normal operation of the entire system, noted in peacetime does not require any maintenance and repair and installation laying <br> <br> matter
1. Try to use forward hoisting when laying. When the construction site is limited or has special requirements, it can also be reversed. No matter what kind of installation method, in the process, it is not allowed to put the expenditure line in advance, to prevent the branch body from scratching when passing through the hole, and to avoid being subjected to excessive mechanical external force 2. It must be selected to be more than 4 times of the cable weight when lifting. Rope, after the laying of the first installation fixture from top to bottom 3, laying the installation process can not be less than 25D cable bending radius 4, fixed single-core prefabricated branch cable, the use of metal fixtures 5, the main trunk and branch lines and accept When connecting the electrical measuring appliance and the electricity measuring appliance, the metal clamp must be used, and the metal type 6 and the hanger used for the correct selection of the clamp must be installed on the load-bearing wall.
advantage:
Can significantly reduce distribution costs
(1)Compared with the closed busway, the price is cheaper to reduce the project cost, and the economic index is high, the comprehensive benefits are obvious, and the specifications are complete, and the selection is flexible. Any combination (2) The branch head is based on the needs of the distribution point of the distribution system. branch location can be set <br> <br> installation environment requires low and easy construction
(1) The occupied building area is small and there is no requirement for the space size of the civil works. (2) The laying is simple, the installation is convenient, and the use environment is low. It can be laid directly in the cable trench, in the special cable shaft of the building, or it can be laid in different Cable bridge, the installation accuracy is low (3)Compared with the closed busway, the cable walks freely, the bending radius is small, greatly reduces the construction difficulty, reduces the space size (4) The installation labor intensity is small, the construction period is short, only excellent one-tenth of <br> when closed busbar installation <br> shock resistance, air tightness, water and fire resistance
(1) It has excellent shock resistance, and is generally enclosed mechanically connected to a busway. Because it is installed parallel to the wall, when the wall is closed, the joints that close the busway are loose, and the prefabricated branch cable is not affected. In particular, it does not require any measures when passing through the settlement joints of buildings. (2) Good airtightness, waterproofness, normal power supply operation in a humid environment, and it can also be laid in open air and buried in soil. (3) Fire-resistant type prefabricated branch cable in the case of combustion, to maintain normal power transmission 90Min <br> <br> maintenance-free operation
(1) and the branch cable predetermined mounting method, one-time opening rate (2) prefabricated branch cable normal operation of the entire system, noted in peacetime does not require any maintenance and repair and installation laying <br> <br> matter
1. Try to use forward hoisting when laying. When the construction site is limited or has special requirements, it can also be reversed. No matter what kind of installation method, in the process, it is not allowed to put the expenditure line in advance, to prevent the branch body from scratching when passing through the hole, and to avoid being subjected to excessive mechanical external force 2. It must be selected to be more than 4 times of the cable weight when lifting. Rope, after the laying of the first installation fixture from top to bottom 3, laying the installation process can not be less than 25D cable bending radius 4, fixed single-core prefabricated branch cable, the use of metal fixtures 5, the main trunk and branch lines and accept When connecting the electrical measuring appliance and the electricity measuring appliance, the metal clamp must be used, and the metal type 6 and the hanger used for the correct selection of the clamp must be installed on the load-bearing wall.
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