Screen, solid and reliable to install the cabinet, the main control panel, and automatic protection screen panel or the like means to be bolted, welded with the base steel can not.
Screen, cabinet installation should be solid and reliable, the main control screen, relay protection screen and automatic device screen should be bolted, not with the base steel welding dead.
The panel and cabinet shall be installed firmly and reliably. The main control panel, relay protection panel and automatic device panel shall be fixed by bolts and shall not be welded with the foundation section steel.