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 MIL-HDBK-1023/4
e) Insulate feet by standing on a dry rubber mat. Remember, however, that contact
with the grounded equipment cabinet could nullify this protection.
f) Stay clear of terminals, leads, or components which carry voltages of any
magnitude. Also, avoid contact with components which are grounded, including the frame.
g) De-energize the equipment when it is necessary to reach into the equipment in
locations where rapid and direct withdrawal of the hand is not possible. In any case, only one
hand should be exposed, with the other hand kept away from contact with voltages or ground.
h) Be certain that there is no power applied to a circuit when making a continuity or
resistance check (the meter will be damaged.)
i) Ground test equipment to the equipment under test unless otherwise specified in
instruction manuals. Following the test procedures in par. 4.2 for using volt-ohm-milliammeters
(VOM) on live circuits.
j) Place a warning sign, such as "DANGER - DO NOT USE OR OPERATE", at the
main switch or circuit breaker, and provide a lockout for the circuit on which you will be
working.
k) Do not wear jewelry, wristwatches, or rings while working with electrical
equipment.
l) Keep clothing, hands, and feet dry if at all possible.
m) Use the correct tool (screwdriver, alignment tool, etc.) for doing the job.
n) Never use toxic or flammable solvents for cleaning purposes.
o) Where air pressure is required for cleaning, use a low-pressure (30 psi or less) air
source. Eye protection (goggles or face mask) is necessary when using compressed air for
cleaning.
p) Do not take anything for granted when working with inexperienced help.
2.4
Safety Boards. A plywood board or similar device, for posting safety procedures, and
a pegboard, for mounting safety equipment, should be located in the airport lighting vault,
switchgear rooms, engine generator rooms, and other appropriate locations. Recommended
safety procedures should be followed as designated by the local authority or command. Some
safety items to be followed are:
a) Accident and fire procedures.
b) Emergency telephone numbers, such as doctor, hospital, rescue squad, and fire
department.
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