Standard Interpretations - Table of Contents|
| Standard Number:||1926.550(a)(9); 1926.403(a); 1926.403(i)(2)(i)|
|OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at http://www.osha.gov.|
Accessible areas within the swing radius of the rear of the rotating superstructure of the crane, either permanently or temporarily mounted, shall be barricaded in such a manner as to prevent an employee from being struck or crushed by the crane.The term "barricade" is not defined in Subpart N. However, that term is defined in other OSHA standards. Although these definitions vary, they typically describe a device that delineates and warns of a boundary that is not to be crossed.1 The following are some examples:
. . . an obstruction to deter the passage of persons or vehicles.Section 1926.960(d) of Part 1926 Subpart V (Power Transmission and Distribution):
a physical obstruction such as tapes, screens, or cones intended to warn and limit access to a hazardous area.Section 1926.502(f)(1)(iv) of Part 1926 Subpart M (Fall Protection):
A rope, wire, chain, or other barricade . . .Section 1910.269(x) of Part 1910 Subpart R (Special Industries -- Electric Power Generation, transmission and distribution), and §1910.268(s)(5) of Subpart R (Special Industries - Telecommunications):
A physical obstruction such as tapes, cones, or "A" frame type wood and/or metal structures intended to warn and limit access to a work area.In each of these examples, the purpose of the "barricade" is to delineate a dangerous area and warn employees not to go beyond a specific point.
All electrical conductors and equipment shall be approved.Section 1926.403(i)(2)(i) states:
Except as required or permitted elsewhere in this subpart, live parts of electric equipment operating at 50 volts or more shall be guarded against accidental contact by cabinets, or other forms of enclosures… [Emphasis added.]Welders operating at or above 50 volts
an artificial mound or revetted wall of earth of a minimum thickness of 3 feet.In this instance the term is used to describe a barrier that provides physical protection from the force of a blast. [ back to text ]
|Standard Interpretations - Table of Contents|
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