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3. General Warnings
3.1 Laser Light Warning
Never look directly into the end of a fiber that may be carrying laser light. Laser light
can be invisible and may be harmful to your eyes. Viewing it directly may not cause pain;
therefore it will not cause blinking or the iris of the eye to close involuntarily as it does when
viewing bright light. Consequently, serious damage to the retina of the eye is possible. Should
accidental exposure of laser light be suspected, arrange an eye exam immediately.
3.2 Laser Light Magnification Warning
Do not use magnifiers in the presence of laser radiation. Diffused laser light can cause
serious eye damage if focused with optical instruments.
3.3 Loose Fiber Warning
Cleaved or broken glass fibers are very sharp and can pierce the skin easily. Keep your
work area clear of removed fiber. Do not allow pieces of fiber to stick to your clothing or fall
into the work area where they can cause injury later. Use tweezers to pick up broken/cut
pieces of fiber and place on a piece of tape that has been set aside for this purpose.
3.4 Sharp Edge Warning
The wearing of cut-resistant safety gloves to protect your hands from sharp cutting
tools and the metal armoring of armored cable is strongly recommended. Use extreme care
when working with severed armor. There may be sharp edges where the armor is damaged.
Always cover the exposed/cut armor end with a wrap of black electrical tape. To minimize the
chance of injury from sharp-blade tools, always cut away from yourself and others. Dispose of
used blades and armor scrap properly.
3.5 Safety Glasses Warning
Use safety glasses while working is highly recommended to provide eye protection
from accidental injury when handling chemicals, cables or working with fiber. Pieces of glass
fiber are very sharp and have potential to damage the eye.
3.6 Electrical Shock Warning
Do not install telecommunications equipment or work with telephone wiring during
a lightning storm. Telephone lines can carry high voltages from lightning causing electrical
shock resulting in severe injury or death.
3.7 Fiber Damage Warning
Fiber Optic cable is highly sensitive to excessive pulling, bending and crushing. Take
care when bending the cables. Be sure not to pull too hard on the fibers. Do not crush the
cable or allow it to kink. Doing any of these things may cause damage to the fiber and require
it to be replaced.
