Should pay attention to the problem of the construction of the cable tray grounding

cable tray ground construction should pay attention to the problem

1 bridge system should have a reliable electrical connections and grounding .
2 when allowed to use the bridge system constitutes the grounding line loop . Shall meet the following requirements :
a tray , ladder between the ends of the connection resistance should not be greater than 0.00033Ω . The grounding hole should clear insulating coating . The
requires the use of braided copper wire connections , expansion joints or soft junction .
3 along the bridge total length of the other laying ground lines each ( including non-linear segments ) tray , ladder should be at least a reliable connection with ground lines .
4 vibration place in the connection of the grounding site shall be equipped with spring washers

http://www.cablebaskets.com/