32 Chapter 3 Installation
NetSure 801 CA7 Power Supply System (New Skelecton) User Manual
3.2.1 Connecting Earth Cable
The power supply system uses common earth. The connection procedures are as follows.
1. Use the earth cable to connect the earth bolt at the rear lower (or rear upper) part of the rectifier cabinet to the
earth bar of the AC distribution cabinet, see Figure 3-8 to Figure 3-10.
Earth terminal
Earth terminal
Figure 3-8 Earth terminal of the rectifier cabinet
Earth busbar
A
Earth bar
To earth terminal of rectifier rack
Bolt
Spring washer
To earth terminal of DC cabinet
To earth copper bar
of equipment room
Plain washer
A amplication
Figure 3-9 Earth bar of the AC distribution cabinet