Special Side-Expanding Bushing for Solid Insulated Switchgear
Key attributes
| Brand | Switchgear parts |
| Model NO. | Special Side-Expanding Bushing for Solid Insulated Switchgear |
| Rated voltage | 12kV |
| Rated normal current | 630A |
| Series | RNCK |
Product descriptions from the supplier
Side width is a critical component of solid insulated cabinets, specifically referring to the width of the cabinet's side, suitable for 12kV/24kV medium voltage distribution scenarios.
Core Features
Accurately matching the overall structure of the solid insulation cabinet to ensure installation compatibility with other components.
Based on the insulation design requirements of the cabinet, taking into account the utilization of installation space and insulation protection performance, it is suitable for scenarios such as power distribution rooms and industrial plants.
Precautions for side width installation of solid insulation cabinet
1、 Size adaptation verification
Before installation, confirm that the actual dimensions of the side width are consistent with the cabinet design drawings, and the deviation should be controlled within ± 2mm to avoid interference with adjacent components such as busbars and sleeves.
Check the compatibility between the side width and the installation foundation (such as brackets and guide rails) to ensure that the support points are fully aligned with the side width stress surface and there is no hanging situation.
2、 Insulation protection guarantee
The installation surface of the side width should be kept clean and dry, free of impurities such as oil stains and metal debris, to prevent affecting the overall insulation performance of the cabinet.
During installation, avoid scratching the insulation coating on the side wide surface. If there is any damage, it should be repaired promptly with specialized insulation materials that comply with relevant IEC insulation standards.
3、 Space and layout requirements
A maintenance space of ≥ 10cm should be reserved on both sides of the side width, taking into account subsequent maintenance and heat dissipation, and avoiding close contact with walls or other equipment.
When multiple cabinets are installed in parallel, the standard for side width dimensions should be unified to ensure that the cabinets are arranged neatly and the spacing between adjacent cabinets is even, without affecting switch operation and circuit connection.
4、 Fixed and stress specifications
Special fasteners are used to fix the side width, and the tightening torque meets the requirements of the product manual (usually 8-12N · m) to avoid component deformation caused by over tightening.
After installation, check the verticality of the side width, with a deviation of ≤ 3 ‰, to prevent long-term uneven stress from affecting the stability of the cabinet structure.
Overall dimensions
Key precautions to avoid electrical hazards: ① Power-off operation: Cut off the power supply and implement lockout-tagout before installation, maintenance or replacement; ② Protective equipment: Wear insulated gloves and insulated shoes during operation, do not touch live parts; ③ Avoid overload: Do not exceed the rated current and voltage to prevent insulation breakdown and overheating; ④ Transportation protection: Use shockproof packaging to avoid collision and extrusion damage to the bushing; ⑤ Regular inspection: Strengthen inspections in vibration-prone environments to prevent connection loosening and arcing....
It is a specialized insulation accessory for solid insulated switchgear (SIS) and ring main units (RMU). Core functions: ① Lateral conductor connection and insulation isolation between internal and external components of the switchgear; ② Side-expanding structure adapts to narrow installation spaces, optimizing the layout of the switchgear cabinet; ③ Preventing leakage current and pollution flashover. Working principle: Adopt high-strength epoxy resin APG casting process, the side-expanding structure increases creepage distance; the embedded metal conductor realizes current transmission, and the solid insulation layer blocks high-voltage breakdown, fully matching the SF6-free design of SIS.
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