What are the requirements for laying copper and brass strip

What are the requirements for laying copper and brass strip

What are the requirements for laying copper and brass strip? It should be known that in order to meet the requirements of high frequency protection, at the same time, in order to balance the voltage of the grid, reduce the voltage difference, and reduce the resistance of the grid circuit, we need to lay the special grounding copper bar for secondary equipment.

When laying the switching field, first of all, a 100 square millimeter copper bar should be supported by an insulator on the bracket in the cable trench. The head and tail of the brass belt should be connected to form a copper bar ring network, which should cover all the control protection cabinets connected with disposable electrical equipment.

The protective screen is to use a small ground brass belt, the copper bar can not be less than 30 square millimeters, but also with insulated wire connected with the copper bar, in order to ensure the safety of the power system, the control of the protection cabinet within the small ground bar should also be connected with the main power grid.

Secondly, it should be noted that, whether it is copper or brass belt, their connection to use more than or equal to 150㎜2 insulated wire, in the cable installation shaft in the ground point to connect with the power grid, at the same time to strengthen the supervision of the ground point, to ensure that the resistance is controlled within a certain range, the connection also for tinning processing, This will ensure that the contact resistance is reduced.