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Materials and Hardware
What protective materials and hardware must be provided by
the employer for isolating, securing or blocking machines or equipment from their energy
sources?
- Locks, tags, chains, wedges, key blocks, adapter pins, self-locking
fasteners, or other hardware [29 CFR 1910.147(c)(5)(i)].
What are the requirements for the lockout and tagout devices?
- Must be durable, so that they are capable of withstanding the
environment to which they are exposed for the maximum period of time that exposure is
expected [29 CFR 1910.147(c)(5)(ii)(A)(1)].
- Must be standardized within the facility in at least one of the
following criteria: color, shape, or size. Additionally, tagout devices must be
standardized as to print and format [29 CFR 1910.147(c)(5)(ii)(B)].
In addition to the above, what other hardware requirements
are specific to lockout?
- Must be substantial enough to prevent removal without the use of
excessive force or unusual techniques such as with the use of bolt cutters or other metal
cutting tools [29 CFR 1910.147(c)(5)(ii)(C)(1)].
In addition to the above, what other hardware requirements
are specific to tagout?
- Must be constructed and printed so that exposure to weather
conditions or wet and damp locations will not cause the tag to deteriorate or the message
on the tag to become illegible [29 CFR 1910.147(c)(5)(ii)(A)(2)].
- Must not deteriorate when used in corrosive environments such as
areas where acid and alkali chemicals are handled and stored [29 CFR 1910.147(c)(5)(ii)(A)(3)].
- Must have an attachment means of a non-reusable type, attachable by
hand, self-locking, and non-releasable with a minimum unlocking strength
of no less than 50 pounds and having the general design and basic
characteristics of being at least equivalent to a one-piece
all-environment-tolerant nylon cable tie
[29 CFR 1910.147(c)(5)(ii)(C)(2)]
- Must include a legend such as: Do Not Start, Do Not Open, Do Not
Close, Do Not Energize, Do Not Operate [29 CFR 1910.147(c)(5)(iii)].
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