In which specification is the interval distance between strong and weak bridges of integrated wiring written?

One hundred high-voltage cable trays are the same as weak-current cable trays, with the following differences:

Usage: 1 The strong cable is placed in the strong cable bridge. 2. The weak cable is placed in the weak cable bridge.

Specification: 1. Strong and weak cables cannot be placed in the same bridge. 2. The installation requirements of strong and weak current bridge are the same.

The general design of strong current and weak current bridge is a separate circuit. Because the strong current will form a strong magnetic field around the cable conductor when the intensity is returned, it will affect the weak current signal, so it is necessary to separate it or set a steel plate partition in the same bridge. The above are the specifications for the use and installation of high-voltage cable trays and weak-current cable trays, and hope to adopt them.