In vibration areas and electrical grounding locations, the connection bolts should be fitted with spring washers.
2. No hard-soled shoes are allowed when working on the bridge structure to prevent damage to the structure, and precautions must be taken to avoid tools falling and causing damage.
Cables fixed on aluminum alloy bridge structures should comply with the provisions of the "Cable Design Specification for Electric Power Engineering."
4. The installation of aluminum alloy bridge beams should be conducted according to the installation and operation manual or relevant materials provided by the bridge beam manufacturer.
When handling, lifting, and constructing, measures should be taken to prevent damage to the aluminum alloy bridge and its surface protective layer.
6. When the surface of the pallet or ladder rack has an insulating coating, the insulation at the grounding point or electrical connection should be thoroughly removed.
The construction of aluminum alloy bridge structures should be carried out according to the approved design. Any modifications to the design require the consent of the original design unit.
When laying cables, the roller used to drag cables at turns should not be directly mounted on an aluminum alloy bridge frame, but can be mounted on a structure like a steel framework.
9. Cables should be laid on open bridge structures. After completion of construction, protective measures should be taken to prevent any falling objects from posing a risk to the cable safety. When a cover is in place, it is advisable to cover it as soon as possible.
10. Aluminum alloy bridge beams are strictly prohibited from being used as pedestrian walkways, ladders, or platforms for standing. Their support and suspension brackets must not be used as supports for lifting heavy loads. High-altitude work must always have specified safety measures in place.
11. Linear segments of pallets and trolleys should be equipped with adjustable joints made of telescoping connection plates at appropriate intervals. The permissible spacing value should be determined based on the temperature difference of the program environment.
Shanxi aluminum alloy bridge trims with spray or paint protective coatings should be repaired with appropriate anticorrosive coatings or paint after cutting and drilling. Trims with an anodized surface do not require repair.
For Shanxi aluminum alloy bridge beams installed with steel support hangers or secured with steel accessories, the bridge beam can be directly in contact with the aluminum alloy bridge beam when the surface of the steel component is hot-dipped galvanized. However, when the surface is coated with powder coating paint, a PVC isolation should be used between the contact with the aluminum alloy bridge beam.
14. The fixation of the straight sections of trolleys and ladder racks on the support brackets should comply with the following requirements:
Between adjacent expansion joints, the tray and ladder are fixed to the support hanger with fixed clamping pieces.
2) Guide components should be used to constrain the lateral position of the trays and ladders on the remaining supporting brackets, allowing them to extend and retract longitudinally along both sides from the fixed points.
Do not tighten the connecting bolts between the telescopic connection plate and the tray, ladder frame side during installation to accommodate the longitudinal expansion of the tray and ladder frame.
