Thermo King 002008, Manual

Page: 12 / 155

Safety Precautions
12
Precautions
1. When working on high voltage circuits on the
refrigeration unit, do not make any rapid
moves. If a tool drops, do not grab for it.
People do not contact high voltage wires on
purpose. It occurs from an unplanned
movement.
2. Use tools with insulated handles that are in
good condition. Never hold metal tools in
your hand if exposed, energized conductors
are within reach.
3. Treat all wires and connections as high
voltage until a meter and wiring diagram show
otherwise.
4. Never work alone on high voltage circuits on
the refrigeration unit, another person should
always be standing by in the event of an
accident to shut off the refrigeration unit and
to aid a victim.
5. Have electrically insulated gloves, cable
cutters and safety glasses available in the
immediate vicinity in the event of an accident.
First Aid
IMMEDIATE action must be initiated after a
person has received an electrical shock. Obtain
immediate medical assistance if available.
The source of shock must be immediately
removed by either shutting down the power or
removing the victim from the source. If it is not
possible to shut off the power, the wire should be
cut with either an insulated instrument (e.g., a
wooden handled axe or cable cutters with heavy
insulated handles) or by a rescuer wearing
electrically insulated gloves and safety glasses.
Whichever method is used do not look at the wire
while it is being cut. The ensuing flash can cause
burns and blindness.
If the victim has to be removed from a live circuit,
pull the victim off with a non-conductive material.
Use the victim’s coat, a rope, wood, or loop your
belt around the victim’s leg or arm and pull the
victim off. DO NOT TOUCH the victim. You can
receive a shock from current flowing through the
victim’s body. After separating the victim from
power source, check immediately for the presence
of a pulse and respiration. If a pulse is not present,
start CPR (Cardio Pulmonary Resuscitation) and
call for emergency medical assistance. If a pulse
is present, respiration may be restored by using
mouth-to-mouth resuscitation, but call for
emergency medical assistance.
Low Voltage
Control circuits used in the refrigeration unit are
low voltage (12 volts dc). This voltage potential is
not considered dangerous, but the large amount of
current available (over 30 amperes) can cause
severe burns if shorted or ground.
Do not wear jewelry, a watch or rings. These
items can short out electrical circuits and cause
severe burns to the wearer.