Site survey
FiberPatrol Site Planning & Installation Guide
Page 31
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Flexible conduit can be bent and formed into the required shape for a cable bypass.
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The minimum bend radius for flexible solid wall conduit is 46 cm (18 in.). (If the conduit is
kinked during bending it must be replaced.)
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If conduit sections are used, the sections must be glued together (water tight).
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Use conduit sweeps. Do not use 90º elbows. (Cable bend radius rules must be followed.)
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Bury the conduit at least 30 cm (1 ft.) below ground.
Split wall conduit
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Use conduit sweeps. Do not use 90º elbows.
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Bury the conduit at least 30 cm (1 ft.) below ground.
Sensitivity loops for heavier gauge posts
Use sensitivity loops at all corner posts, terminal posts and tension posts on the fence. The
sensitivity loops provide additional sensor cable for areas that typically produce lower levels of
fence noise. The length of cable required for a sensitivity loop can be calculated using this formula:
3 X (fence height - 60 cm) + 90 cm = sensitivity loop cable length requirement.
For example, on a 2.4 m (8 ft.) fence, the service loop would go down 90 cm, then up 1.8 m, then
down 1.8 m, and up 90 cm over a horizontal length of 90 cm.
Figure 34 Sensitivity loop (heavy gauge post)
Figure 35 Sensitivity loop (corner post)
NOTE:
All double arrows indicate 30 cm (1 ft.) separation. All turns must respect the minimum bend radius.
NOTE:
All double arrows indicate 30 cm (1 ft.) separation.
All turns must respect the minimum bend radius.
