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If part of the sensing cable touches some metallic parts (e.g.: Bracket/clamp, metal pedestal of raised floor
panels, grounding strip, aluminum foils, screws, bolts & nuts, etc.) or even metallic burrs that accumulated
around the sensing cables, they can cause false leak alarm.
Recommended Solution:
Vacuum the affected area to remove any metallic burrs and objects.
Use the hold down clips to separate the sensing cable from the metallic parts
Use PVC spiral sleeve (min. dia.: 10mm) to wrap round the affected length of the sensing cable.
This will insulate the sensing cable from the metallic parts/objects, especially when the area to
insulate is much larger and using a hold down clip is not so effective.
Figure 13: Leak false alarm due to the contact with metallic parts
Figure 14: Use Hold down clip to separate the sensing cable & Use PVC spiral sleeve to wrap round the affected length of the
sensing cable
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