Protection Requirements For A Mast Or Tower Installation; Figure 2-3 Grounding Cable Minimum Bend Radius And Angle - Motorola PTP 600 series User Manual

User Guide: PTP 600 Series

Figure 2-3 Grounding cable minimum bend radius and angle

ODU requirements
The following ODU protection requirements must be implemented:
•
The ODU must be grounded to the supporting structure.
•
An LPU must be installed close to the ODU.
•
The distance between the ODU and LPU should be kept to a minimum.
•
The drop cable length between the ODU and LPU must be less than 600 mm.
•
The ODU and top LPU should be bonded together.

Protection requirements for a mast or tower installation

If the ODU is to be mounted on a metal tower or mast, then in addition to the general
protection requirements (above), the following requirements must be observed:
•
The equipment must be lower than the top of the tower or its lightning air
terminal.
•
The metal tower or mast must be correctly grounded.
•
A grounding kit must be installed at the first point of contact between the drop
cable and the tower, near the top.
•
A grounding kit must be installed at the bottom of the tower, near the vertical to
horizontal transition point. This grounding kit must be bonded to the tower or
tower ground bus bar (TGB), if installed.
phn-0896_012v000
Jul 2010
4Gon www.4Gon.co.uk info@4gon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299
Radius not less
than 203 mm (8 in)
Grounding and lightning protection
Angle not less
than 90°
2-17