Latest knowledge on anti-static mats
The enclosures of fixed equipment (towers, containers, pumps, heat exchangers, filters, etc.) should be grounded electrostatically. If it is soil-covering equipment, it is generally not necessary to do static grounding. So what are the requirements for antistatic rubber fixed equipment for static grounding? How do the professionals of anti-static table mat manufacturers answer it?
1 The shell of fixed equipment (towers, containers, pumps, heat exchangers, filters, etc.) should be grounded electrostatically. If it is soil-covering equipment, it is generally not necessary to do static grounding.
1 For equipment with a diameter greater than or equal to 2.5m and a volume greater than or equal to 50m3, the grounding points of the antistatic bench pad should not be less than two, and the grounding points should be evenly arranged along the periphery of the equipment, and the spacing should not be greater than 30m.
2 For fixed equipment with vibration performance, its vibrating parts should be grounded with a copper core flexible twisted wire with a cross section of not less than 6mm2, and single-stranded wires are strictly prohibited. Several devices with soft connections should be bridged with copper-cored soft-stranded wires.
3 The grounding of rotating objects can be grounded by conductive grease or special grounding facilities (such as slip rings and brushes in non-explosive, non-hazardous environments), but similar to valve stems and bearing rotating parts, The above connection. Belts or conveyors that are prone to accumulate charges should be made of conductive rubber.
4 The belt-driven units and their antistatic grounding brushes and protective covers should be grounded.
5 Combustible dust bag type dust collection equipment, the ground terminal of the wire woven into the bag body should be grounded.
6 The movable connection or sliding connection between various parts inside the equipment should keep its contact resistance value below 1000Ω.
7 The fixed equipment and the grounding wire or connecting wire should be connected by bolts. The connection terminals can be set on the side of the equipment, or on the side or end of the combined metal support.