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Protectowire Linear Heat
Detector & PWSC Splice Connector
Installation
During installation, lengths of Protectowire Linear
Heat Detector may be spliced together to form
detector lengths up to the maximum allowed by the
initiating device circuit being used. These lengths
can consist of any combination of detector types
excluding type TRI.
Restoration
After a portion of Protectowire Linear Heat Detector
has been actuated by exposure to heat, it is
restored to normal operation by removing the
actuated portion and splicing in a replacement piece
of detector. Removing at least 3 feet (0.9m) beyond
the actuated portion in both directions is
recommended to ensure the Detector's integrity. |
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The following instructions show the recommended
procedure for splicing Protectowire Linear Heat
Detector using PWSC splicing connectors. |
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1.
Strip Outer Jacket
Remove 7/8" (2.2cm) of the
detectors outer jacket exposing the internal Mylar™
wrap. |
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2. Remove Mylar™ Wrap
Remove 7/8 in. (2.2cm) of the Detector's Mylar™
wrap, being careful not to damage the internal heat
sensitive conductors |
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3. Strip Inner Conductors
Strip 1/2 in. (1.3cm) of heat sensitive insulation
from the inner conductors leaving 3/8 in. (0.9cm) of
insulation on each. |
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4. Bend
Inner Conductors
The inner conductors of the Detector should be bent
to allow insertion into the PWSC Splicing Connector.
To avoid damage to the inner conductors this should
not be done with pliers. |
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5. Insert and Tighten Splicing Connector
The entire 1/2 in. (1.3cm) portion of exposed inner
conductors should be embedded within the PWSC
Splicing Connector. This will ensure it is below
both terminal screws. Each terminal screw is then
tightened. At this point the screw turrets may be
trimmed to allow for easier taping of the splice. |
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6. Seal Splice (Outdoor and High Humidity
Installations)
Using 4-5 in. (10.1cm - 12.7cm) of SFTS Sealing
Tape, start 2 in. (5.1cm) before the splicing
connector and wrap the splice. Stretch and overlap
each wrap by 1/2 - 1/4 of the width tapes width to
insure a proper seal. Sealing tape is recommended
for outdoor and high humidity installations. |
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7. Tape Splice
Using "Scotch/3M" brand "Super 33+" or "No. 35"
electrical tape, start 2 in. (5.1cm) before the
splicing connector and wrap the splice. Stretch and
overlap each wrap of the tape by 1/2 - 1/4 of the
tapes width to ensure a proper seal. |
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