Galvanized cable trays used for bridging

Yes, galvanized cable trays can be used for bridging, with proper bolting and grounding connections to ensure electrical continuity.Bridging with Galvanized Cable TraysGalvanized cable trays can serve as conductive bridges between sections, but specific installation practices must be followed to maintain safety and functionality. The connection between trays should use at least two sets of galvanized steel bolts with anti-loosening nuts or washers to achieve a reliable conductive connection. Alternatively, insulated multi-strand copper wires with crimped tinned copper connectors can be used for cross connections, with a minimum cross-sectional area of 4.0 mm² for the copper wire (Homepipes.com) .Grounding ConsiderationsUnlike stainless steel or aluminum alloy trays, galvanized cable trays do not require special grounding bolt holes at the connecting plates. The ends of the connecting plates do not need to be grounded, but each end should have at least two fixing bolts with anti-loosening hardware to maintain mechanical stability and electrical continuity (Homepipes.com) . For stainless steel or aluminum trays, dedicated grounding bolt holes are necessary, but this is not required for galvanized trays.Installation Best PracticesUse anti-loosening nuts or washers provided by the manufacturer to prevent loosening over time.Ensure all crimped connections are properly secured with galvanized steel bolts.Avoid using more than two crimping wires at a single crimping point to maintain reliable conductivity.Galvanized trays provide corrosion resistance and mechanical strength, making them suitable for long-term bridging applications (Galvanizers.co.in) .SummaryGalvanized cable trays are suitable for bridging applications, provided that proper mechanical and electrical connections are made. Using anti-loosening bolts and washers, along with optional copper wire cross-connections, ensures both structural integrity and electrical continuity. Special grounding hardware is generally not required for galvanized trays, simplifying installation compared to other metal tray types.