I.PVC doors and windowsIs grounding for static electricity required?
This is not necessary because the exterior surface of the UPVC window is entirely plastic, and although there is an internal reinforcing steel frame (referred to as a steel lining), this frame is not connected internally, which means that each component lacks continuity. According to the anti-static requirements, it is necessary to anti-static each component, but this is impractical in reality.
Therefore, considering the overall situation, plastic steel doors and windows do not require grounding, as the impact side is non-conductive and inherently provides grounding protection. Furthermore, the relevant standards do not specify grounding requirements for plastic steel windows. Consequently, plastic steel windows currently do not require or necessitate grounding.
Second, are there anti-static requirements for plastic-steel windows in high-rise buildings?
No, there is no requirement for lightning protection for aluminum alloy windows in high-rise buildings. Lightning protection requirements are specifically for steel windows, and all metal windows are subject to these requirements. Plastic-steel windows are not metal.
According to Clause 3.2.2 of the "Code for Design of Lightning Protection for Buildings" (Category 1), the lightning protection measures for lightning-induced protection of buildings should meet the following requirements:
All equipment, piping, structures, exposed cable sheathing, steel roof structures, steel windows, and other large metal objects within the building, as well as metal vents and ductwork protruding from the roof, should be connected to a grounding device for lightning protection.
Metal roofing should be grounded with a downlead every 18-24 meters along the perimeter.
Reinforced concrete roofs cast in place or constructed from prefabricated elements should have the reinforcing steel tied or welded into a closed loop, and should also incorporate a grounding wire every 18-24 meters.