Mich. Admin. Code R. 408.11213 - Working in confined spaces
Rule 1213.
(1)
When working in a confined space, the torch valves and the gas supply valve and
oxygen valve outside the confined space shall be shut off during lunch,
overnight, or for any other prolonged period. Where practicable, the torch and
hose shall be removed from the confined space.
(2) When stick electrodes are used in a
confined space, and welding is suspended during lunch, overnight, or for any
other prolonged period, the electrode shall be removed from the holder and the
machine shut off.
(3) The air in a
confined space shall be tested with an approved device and purged, if
necessary, before any entry. Ventilation shall be provided in the confined
space when an employee is present.
(4) A cylinder or welding power source used
in a confined space shall be placed and secured on the outside of the space
where work is being performed.
(5)
An employee who is trained in rescue procedures, and with such equipment as is
necessary to effect a rescue, if needed, shall be stationed outside the
confined space during welding or cutting operations. An employer shall ensure
that an effective means of communication is established between employees in
the confined space and the attendant. When safety belts and lifelines are used,
they shall be provided and used as prescribed in general industry safety
standard Part 33 "Personal Protective Equipment," as referenced in
R
408.11202, and attached to the welder's body so that
his or her body cannot be jammed in a small exit opening.
(6) After welding operations are completed in
a confined space, a sign or other warning shall be used to mark the hot
metal.
Notes
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