Why do transformer markers fail?
There are a number of common reasons
why transformer markers fail. They are illustrated and outlined as
follows:
 
Sun and Rain Damage Them.
Laminates yellow and ink chaulks. The markers at left have been
used outdoors in upstate New York for 4 years, which compared
to Florida or Arizona, is hardly a demanding environment. Acid
rain is increasingly taking its toil on markers [see chaulking,
at right]. Acrylic and Tedlar laminates extend outdoor life.
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Heat Ages Them.
Less expensive monomeric vinyl films embrittle. Films need to
withstand heat. Electromark’s premium acrylic and polymeric
vinyl films, with a heavy 1.5 mils thick
adhesive, ensure long-term durability.
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They Aren’t Applied
Correctly. Cleaning is vital. Applying a label to an
unprepared surface is like trying "to paint a dirty gutter".
Neither paint nor labels will stick well.
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Vandals Destroy Them.
Slide-in digits can be pried or twisted out.
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They Cannot Be Seen, Especially
At Night. And, it is at night when you really need
them. Invariably, power outages occur in storms or at night
or when visibility is poor. See the photo on the right; the
markers on the right of this pole are not reflective and can
barely be seen, even with a bright light. Why buy a system that
is only readable in the daytime?
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U.S. Patent 4,863,238
They Can Only be Used on Wooden Poles. A utility can
carry dozens of different types of digits. Some are for poles,
others for transformers and still others for trucks, for towers,
for URD cables, etc. Inventory and purchasing costs skyrocket.
Electromark’s digits can be used on almost any piece of
equipment and this saves money. Your marking system must be
flexible.
See Also ...
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