![SENSTAR FiberPatrol FP1150 Series Скачать руководство пользователя страница 56](http://html.mh-extra.com/html/senstar/fiberpatrol-fp1150-series/fiberpatrol-fp1150-series_product-manual_1244234056.webp)
Buried cable installation
Page 56
FiberPatrol FP1150 Product Guide
Fiber optic cable handling
The following are typical performance specifications for armored FiberPatrol fiber optic sensor
cable used in buried pipeline applications:
•
fiber count: 24
•
fiber type: single-mode
•
fiber wavelength: 1550 nm
•
minimum allowable bend radius (dynamic): 30 cm (12 in.)
•
minimum allowable bend radius (static): 15 cm (6 in.)
•
minimum allowable bend radius (single fiber): 32 mm (1.25 in.)
•
maximum allowable tensile rating during installation (short term): 2700 N (600 lbf)
•
maximum allowable tensile rating installed (long term): 800 N (180 lbf)
•
temperature ratings (storage/operation): -40 to 70ºC (-40 to 158º F)
•
temperature ratings (installation): -30 to 70ºC (-22 to 158º F)
•
outside diameter (nominal): 15 mm (0.59 in.)
•
cable weight: 190 kg/km (128 lb/1,000 ft.)
Cable loss limits (maximum attenuation)
After being installed, each sensor fiber (and any additional fibers that will be used for other
applications) must be tested using an OTDR operating at 1550 nm. Measure the loss from both
ends of the cable, and use the higher of the two readings.
•
average loss over the full length of installed cable must be 0.25 dB/km (0.4 dB/mi.) or less for
up to 80 km of sensor cable
•
average loss over the full length of installed cable must be 0.24 dB/km (0.39 dB/mi.) or less for
up to 100 km of sensor cable (TPI)
•
maximum individual event loss limit: 0.1 dB
Cable handling recommendations
•
Bend management systems must be used to restrict cable bend during installation so that the
minimum bend radius is not violated. (Cable pulleys of a suitable diameter must be used at
points where the cable changes directions during installation.)
•
Fused swivels and tension controlled hauling winches must be used to ensure the cable is
installed at a tension that does not exceed the specified limits.
•
Cable spools must be positioned to limit cable bending and minimize the angle of cable pay-off
during unwinding/hauling.
•
Cable spools must be held firmly in the pay-off stands to ensure smooth rotation and prevent
any vibration which can damage the cable and the drum.
Note
Measure the loss from both ends of each fiber before splicing the fibers to
the fiber connection module and end module, and before burying the
sensor cable.
Note
Fusion splice performance typically results in a loss of between 0.01 and
0.03 dB.
Содержание FiberPatrol FP1150 Series
Страница 72: ...Troubleshooting procedures Page 72 FiberPatrol FP1150 Product Guide ...
Страница 124: ...Page 124 FiberPatrol FP1150 Product Guide ...
Страница 134: ...Page 134 FiberPatrol FP1150 Product Guide ...