What are the acceptance standards for installation of busbar trunking systems? - Yangzhou Darui

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  Regarding busbar trunking systems, our understanding and knowledge are gained through continuous learning, allowing us to constantly improve and gradually accumulate experience, so as to achieve our expected learning goals and requirements as soon as possible. Therefore, the following is no exception, still about the installation acceptance standards for busbar trunking systems, which we should be clear about, so that everyone can gain new insights and thus shorten the gap towards our goals.

1. Supports

1. Should be treated with anti-corrosion.

2. Should be continuously welded.

3. Installed firmly, with consistent positions of mounting holes.

2. Support spacing

For single-line "H" type below 300A: ≤1.5M, above 400A: ≤3M.

　　Multi-line non-welded busbar trunking systems type: 1.0-1.5M, conduit type: 1.0-1.5M, cable trolley type: 1.0-2.0M, arc segment support spacing should be <1.0M according to site conditions.

3. Suspension parts

Position correct, installed firmly, quantity meets requirements.

4. Main body of busbar trunking system

1. Gap between protective shell and conductor ≤2mm.

2. Straightness: tolerance with track center height <±15mm.

3. Straightness: longitudinal tolerance with track center <±15mm.

4. Twisting degree: <15mm/10m.

5. Expansion joints

1. Quantity complies with regulations.

2. Gap distance should meet the theoretical expansion amount caused by temperature difference at the installation site.

6. Current collectors

1. Square steel bracket welded firmly, center line perpendicular to busbar trunking system with tolerance ±3mm.

2. Dimensions between square steel bracket and busbar trunking system should ensure that the movable arm of the current collector is parallel to the main body of the busbar trunking system, with tolerance ±3mm.

3. The current collector slides smoothly on the plane of the busbar trunking system, meeting the specified pressure. (See next page: Contact pressure table between current collector brush and guide rail)

7. Fasteners

The torque of fastening nuts should comply with the manufacturer's recommended values. Recommended values: M10-28NM, M8-12NM, M6-6.5NM

8. Power inlet









Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.