SENSTAR FiberPatrol FP400, Руководство по эксплуатации продукта, Страница: 30 / 76

Installation recommendations
Page 30 FP400 Product Guide
Solid wall conduit
• Both ends of the conduit must be sealed.
• Flexible conduit can be bent and formed into the required shape for a cable bypass.
• 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.)
• If conduit sections are used, the sections must be glued together (water tight).
• Use conduit sweeps. Do not use 90º elbows. (Cable bend radius rules must be followed.)
• Bury the conduit at least 30 cm (1 ft.) below ground.
Split wall conduit
• Use conduit sweeps. Do not use 90º elbows.
• Bury the conduit at least 30 cm (1 ft.) below ground.
• Both ends of the conduit must be sealed.
Sensitivity loops for tension posts and corner posts
Corner posts, terminal posts and tension posts are made of heavier gauge steel than ordinary
fence posts and can have a dampening effect on nearby fence vibrations. To compensate for this,
Senstar recommends using sensitivity loops at all corner posts, terminal posts and heavy gauge
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 27 Sensitivity loop (heavy gauge post)
NOTE: All double arrows indicate 30 cm (1 ft.) separation. All turns must respect the minimum bend radius.