Clarke 100EN, Руководство по эксплуатации и техническому обслуживанию

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3C) FIRE AND EXPLOSION PREVENTION
Comply with precautions in 2C. Equipment’s rated capacity. Do not overload arc
welding equipment. It may overheat cables and cause a fire. Loose cable
connections may overheat or flash and cause a fire. Never strike an arc on a cylinder
or other pressure vessel. It creates a brittle area that can cause a violent rupture or
lead to such a rupture later under rough handling.
3D) SHOCK PREVENTION
Exposed live conductors or other bare metal in the welding circuit, or in
unearthed, electrically-LIVE equipment can fatally shock a person whose
body becomes a conductor. DO NOT STAND, SIT, LIE, LEAN ON, OR TOUCH a
wet surface when welding, without suitable protection.
3E) PROTECTION FOR WEARERS OF ELECTRONIC LIFE SUPPT DEVICES (PACEMAKERS)
Magnetic fields from high currents can affect pacemaker operation. Persons wearing
electronic life support equipment (pacemaker) should consult with their doctor
before going near arc welding, gouging, or spot welding operations.
3F) TO PROTECT AGAINST SHOCK:
Keep body and clothing dry. Never work in damp area without adequate
insulation against electrical shock. Stay on a dry duckboard, or rubber mat
when dampness or sweat can not be avoided. Sweat, sea water, or moisture
between body and an electrically LIVE part - or earthed metal - reduces the
body surface electrical resistance, enabling dangerous and possibly lethal
currents to flow through the body.
1) Earthing the equipment
When arc welding equipment is earthed according to the National
Electrical Code, and the workpiece is earthed, a voltage may exist
between the electrode and any conducting object.
Examples of conducting objects include, but are not limited to, buildings,
electrical tools, work benches, welding power source cases, workpieces, etc.
Never touch the electrode and any metal object unless the welding power
source is off. When installing, connect the frames of each unit such as welding
power source, control, work table, and water circulator to the building earth.
Conductors must be adequate to carry earth currents safely. Equipment made
electrically LIVE by stray current may shock, possibly fatally. Do NOT EARTH to
electrical conduit, or to a pipe carrying ANY gas or a flammable liquid such as
oil or fuel.
2) Electrode holders
Fully insulated electrode holders should be used. Do NOT use holders
with protruding screws or with any form of damage.
3) Connectors
Fully insulated lock-type connectors should be used to join welding
cable.