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New
SpanGUARD/HeliMARK Power Line Markers / Aircraft Warning Markers
SpanGUARD line markers make overhead
powerlines visible to low flying aircraft, protecting
valuablepower lines and saving lives. SpanGUARD markers have
been in service since 1950, secured to thepower line by Preform.
To our knowledge, none have ever come off the line. Over 600
utilities are using SpanGUARD markers and all are repeat
customers.
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Features
Preform Attachment
The secret of the SpanGUARD is its unique
construction and method of attachment. SpanGUARDs are fastened
to the conductor by means of spiral formed armor rods. These
spiral rods actually rein-force the conductor at the point of
attachment and are completely slip-proof. They are designed to
protect the conductor. |
Better Colour
Retention
SpanGUARDs are the best power line markers
on the market. Each marker is constructed of Rovel ABS, a
material that has 10 times the weatherability and color
retention of fiberglass. Rovel ABS is much more durable, and
unlike fiberglass, will not crack if struck by gunshots. |
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Clam-Shell
Design
The new SpanGUARD/HeliMARK clam-shell
design makes it easy to install power line markers from
helicopters, from buckets, from bosuns chairs. The installer can
almost completely assemble the marker onthe ground. This leaves
only the three bolts nearest him to install up in the air.
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| SpanGUARD/HeliMARK
Markers make
it possible to install markers on previously inaccessible lines
across rivers, or deep canyons, or environmentally sensitive
areas where it is not feasible to take the lines out of service
for installation of markers. The SpanGUARD/HeliMARK, patent
pending, design makes the installation of markers by helicopter
or bucket easy. Recently Haverfield Helicopter installed 102 of
the Model 20 SpanGUARD / HeliMARK markers with two
helicopters in 7 1/2hours, including refueling time.
Marking of all hazardous power lines is now feasible. |
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