PAL-AT Installation Manual
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Step E The secondary containment field joint can now be made. After closing the field joint of the
secondary containment, restrain the continuous pull rope at the spool end, and pull on the rope at
the open field joint in order to pull the rope off the wire hook.
Step F Pull the continuous pull rope from the previously sealed joint to the next open field joint.
Step G Repeat the sequence of splicing, pulling and closing the field joints of the secondary containment
until the continuous pull rope has been pulled through the entire piping run. Each time after
completing 3 or 4 field closures, move the continuous pull rope back and forth in the containment
to insure the pull rope moves freely.
5.5 Installing Sensor and Jumper Cables
1. After all other work is completed and the area is free and clear of all activities that can cause damage,
the sensor cable should be installed. Care must be taken during installation of sensor cable to
avoid contact with potential contaminants such as water puddles or oil.
2. PermAlert recommends installing the sensor cable before backfilling of underground secondary
contained pipe systems.
3. Keep the cable dry and clean. Tent the spool area and do not install the sensor cable during a
rainstorm.
4. Slowly play out the cable by hand rotating the spool. Never attempt pulling loose coils of cable off the
end of the spool. When loose coils are pulled taut, kinks may form that could prevent bringing the
system on-line.
5. Always be careful to prevent the cable from falling into the secondary containment. Be
particularly careful at risers, where the weight of the cable in the vertical section of pipe tends to pull
back the cable.
6. The bottom of a secondary containment that penetrates into a vault or building should be fitted with a
minimum 1" [25 mm] threaded pipe coupling or similar fitting. This fitting will be located where the
sensor cable enters (exits) the secondary contained piping system.
7. Check that the air spaces of secondary containment, at termination points of the piping system, are
dry. Drain plugs in the containment should be provided for this purpose. If water is found, dry the
system completely before attempting installation of the sensor cable.
8. Place the spool of sensor cable at the high end of the run. At this time, do not route the pull rope or
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