Gas Cylinders.
Shielding gas cylinders contain gas under high pressure. If damaged, a
cylinder can explode. Because gas cylinders are normally part of the welding process, be sure to
treat them carefully. CYLINDERS can explode if damaged.
•
Protect gas cylinders from excessive heat, mechanical shocks, physical damage, slag, open
flames sparks, and arcs.
•
Insure cylinders are held secure and upright to prevent tipping or falling over.
•
Never allow the welding electrode or earth clamp to touch the gas cylinder, do not drape
welding cables over the cylinder.
•
Never weld on a pressurised gas cylinder, it will explode and kill you.
•
Open the cylinder valve slowly and turn your face away from the cylinder outlet valve and gas
regulator.
Gas build up.
The build up of gas can causes a toxic environment, deplete the oxygen content in the air
resulting in death or injury. Many gases use in welding are invisible and odourless.
•
Shut off shielding gas supply when not in use.
•
Always ventilate confine spaces or use approved air-supplied respirator.
Electric and Magnetic Fields.
Electric current flowing through any conductor causes localized Electric and Magnetic Fields
(EMF). The discussion on the effect of EMF is ongoing in the entire world. Up to now, no
material evidences show that EMF may have effects on health. However, the research on the
effect of EMF is still ongoing. Before any conclusion, we should minimize exposure to EMF as
few as possible.
In order to minimize EMF, we should use the following procedures:
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