452. Dangerous parts of machinery.

452.     Dangerous parts of machinery.

Every employer1 must ensure that measures are taken which are effective:

  1.  

    (1)     to prevent access to any dangerous part of machinery or to any rotating stock-bar2; or

  2.  

    (2)     to stop the movement of any dangerous part of machinery or rotating stock-bar before any part of a person enters a danger zone3.

The measures so required are to consist of:

  1.  

    (a)     the provision of fixed guards enclosing every dangerous part or rotating stock-bar where and to the extent that it is practicable4 to do so, but where or to the extent that it is