Section 408.14443. Cupolas.

(1) A skip  hoist   or  charging  machine,  unless  completely enclosed, shall be equipped with:

(a)   A warning device to announce movement.

(b)   An interlocking gate across the bucket loading opening.

(2)   An employee working in a cupola  shall  be  protected  from  falling objects by an overhead guard.

(3)   A cupola bottom shall be:

(a)   Supported by 2 or more metal props of structural strength with overall safety factor of not less than 10 to support a full capacity load and adjusted to proper height by wedges or screw jacks.

(b)   Dropped only after a general warning has been sounded and all persons are removed to a safe distance or protected by a permanent or movable enclosure or screen.

(c)   Dropped into an area free of water.

(4)   A slag hole shall be shielded to protect an employee from spattering slag.

(5)   Where oxygen is used to blow or cut tapping holes, a screen or guard shall be used to protect nearby employees from hot blown material.

(6)   An employee not wearing light attenuating goggles or  shields  shall be protected by a screen or wall from the arc of an electric furnace.

History: 1979 AC.