Section 296-96-05120. What requirements apply to car operating devices, terminal stopping devices and electrical protective devices?
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If electrically operated, such devices must be enclosed. On lifts driven by winding drum machines, there must be a slack rope device employing an enclosed electric switch (manually reset type) which halts power to the drum and brake when the hoisting rope becomes slack.
On other lifts suspended by flexible means such as chain, there must be a slack rope/chains device employing an enclosed electric switch (manually reset type) which halts power to the machine and brake when the suspension means becomes slack.