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Bridge ground four illustrate

1. tray should have a reliable electrical connections and grounding of the system (only on the metal bridge).

2. when allowed to use Cable Tray Systems grounding trunk circuits should comply with the following requirements, bridge end connection between resistance should not exceed 0.00033 ohm, grounding holes clear insulating coating.

3. laying along the bridge a total length when the grounding line, each (including non-linear) bridge with grounding line should be at least a little reliable connections.

4. vibration places, should be installed at the connection of coils at the grounding site.