Page 5
Grounding cable installation methods
To provide effective protection against lightning induced surges, observe these requirements:
•
Grounding conductor runs must be as short, straight and smooth as possible, with bends and curves
kept to a minimum.
•
Grounding cables must not be installed with drip loops.
•
All bends must have a minimum radius of 203 mm (8 in) and a minimum angle of 90°. A diagonal run
is preferable to a bend, even though it does not follow the contour or run parallel to the supporting
structure.
•
All bends, curves and connections must be routed towards the grounding electrode system, ground
rod, or ground bar.
•
Grounding conductors must be securely fastened.
•
Braided grounding conductors must not be used.
•
Approved bonding techniques must be used for the connection of dissimilar metals.
Siting ODUs and antennas
ODUs and external antennas are not designed to survive direct lightning strike. For this reason they must
be installed in Zone B as defined in
PTP 670 Series User Guide
. Mounting in Zone A may put equipment,
structures and life at risk.
