User's Manual

Table Of Contents
177
Zone A Zone B
Earth ODU Mandatory Mandatory
Screen Cable Mandatory Mandatory
Surge Arrestor Unit at ODU – ALPU-
ORT
Mandatory Mandatory
Earth Cable at Building Entry Mandatory Mandatory
Surge Arrestor Unit at Building Entry
– ALPU-ORT
Mandatory Mandatory
Table 19 - Protection Requirements
Figure 111 - Diagrammatically showing typical wall and mast installations