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Detector Wires:
Non-ferrous, type 304 stainless steel, 22 gauge
Carrier Material:
Specially woven for proper wicking or capillary action
Construction:
Two stainless steel detection wires inserted into carrier/tape with 7/16"
(11.1mm) spacing for nuisance alarm prevention
Dimensions:
Width: 1 1/8" (28.6mm);
Length/Roll: 250 feet (76.2m)
Length/Zone:
Usually applied in lengths of 100 feet (30.5m) or less per zone. Maximum
allowable length per zone - 2000 feet (609.6m)
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B-11
Liquid Detector Tape
The lineal leak detector tape design allows encirclement of equipment
or potential sources of leaks. A warning will sound when as few as 2 drops
(adjustable) of water (aqueous liquid) comes in contact with the tape.
This is in stark contrast to spot detector systems that trigger the alarm
if and when water hits the contact points. Early detection of leaks allows
for corrective action to be implemented immediately, rather than after
the flood has occurred. The tape is glued or strapped to the surface to
be protected (floor, pipes, etc.) avoiding migration and bridging. Bridging
allows water to flow under the cable and thus, avoid detection. The low
profile of the B-11 helps to prevent damage as opposed to the higher profile
cable used in some systems which can be easily snagged, dragged and/or
damaged.
Redundancy
through multiple zoning. When the
liquid detector tape is properly applied, potential sources of water leakage
are completely surrounded. The many "zones" that are formed serve to confine
the area of detection and provide added or redundant zones of protection.
These small zones serve to pinpoint the location of the leak. Unlike cable
detection systems that use the "unizone" method and are incapable of monitoring
other zones when there is an active alarm, the EWA System provides multiple
supervised protective loops. This allows for the ability to continue detection
and warning, even when there is an active Alarm or Fault in other zones
or sensors.
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