The Occupational Safety and Health Administration (OSHA) standard 1910.140(c)(13) states that anchorages must be “capable of supporting at least 5,000 pounds (22.2 kN) per employee attached; or designed, installed, and used, under the supervision of qualified person, as part of a complete personal fall protection …
What is a suitable anchor point?
In order for an existing structure to qualify as an anchor point,
it must be able to withstand 5,000 pounds of force per person attached, or a safety factor of two
(meaning it can withstand twice the force that would be applied in a fall).
What is the best location for an anchorage point?
Anchorage points should be positioned
at or above the D-ring of the harness
. Employees should plan for a 19 ft. clearance if a fall would occur.
What is an acceptable anchorage point in a fall protection system?
The CSA Standard Z259. 16 Design of Active Fall-Protection Systems recommends establishing the anchor point so that the swing-drop distance is limited to
1.2 metres or less
. Select an anchor so the lifeline attached to it does not travel over a guardrail, parapet wall, or other parts of the structure.
Can guardrail systems be used as anchorage points?
Guardrails are not anchor points
.
It’s fine if a guardrail coexists at the same time someone is working in Fall Arrest, but it should never be used as a component of the Fall Arrest system.
Do guardrails make effective anchor points?
Guardrails make effective anchor points
for a personal fall arrest system.
How do you choose an anchor point?
When choosing an anchor point,
the material you’re installing it to and how you plan to use it will dictate the type of anchor point you need
. For example, you would use a different anchor point on a building or roof made of wood than you would a building made of cement.
What can happen if your anchorage point is not directly above your head?
A swing fall
describes the event that occurs when a worker using a personal fall arrest system falls when the anchor point is not directly above the worker’s head. In this situation, the worker would begin falling straight down until the lifeline stops paying out.
What are some best practices for the safe use of vertical lifelines?
The following are good industry practices for the safe use of a vertical lifeline:
No knots or splices in the lifeline except at the termination points. Attach each lifeline to an independent point of anchorage. Only one worker connected to a vertical lifeline
.
What is a horizontal lifeline?
What is a horizontal lifeline? A horizontal lifeline is
a component in both fall arrest systems and fall restraint systems
. They consist of a strong cable attached to two or more anchor points, which allows for the attachment of a safety harness and lanyard system.
What is the minimum required anchorage strength for a work positioning system without an engineer’s certification?
The existing document references anchorages as needing to be capable of supporting at least
5,000 lbs
. in the absence of certification or 3,600 lbs.
Which of the following requirements is true for guardrail systems?
Guardrail systems shall be capable of withstanding, without failure, a force of at least 200 pounds (890 N) applied within 2 inches (5.1 cm) of the top edge, in any outward or downward direction, at any point along the top edge.
Which of the following heights would be acceptable for the top rail of a guardrail system?
(1) Top edge height of top rails, or equivalent guardrail system members, shall be
42 inches (1.1 m) plus or minus 3 inches (8 cm) above the walking/working level
.
What are the specifications for a guardrail system?
Guardrail systems are capable of withstanding, without failure, a force of at least 200 pounds (890 N) applied in a downward or outward direction within 2 inches (5 cm) of the top edge, at any point along the top rail.
What is the OSHA standard for guardrails?
What are OSHA guardrail requirements? OSHA states that guardrail must reach a height of 42 inches, plus or minus 3 inches, above the walking-working surface and withstand a force of 200 pounds at any point in a downward or outward direction.
When wire rope is used as a guardrail system?
Guardrail Systems
If wire rope is used for toprails,
it must be flagged at not more than 6 feet intervals (1.8 meters) with high-visibility material
. Manila, plastic, or synthetic rope used for toprails or midrails must be inspected as frequently as necessary to ensure strength and stability.
What is anchor Point in work at height?
The anchor point is
above the user’s head and the lanyard is tightened
. The anchor point is at the same level than the user’s chest, i.e. at the sternal attachment point. The anchor point is at the same level than the user’s feet, i.e. between the sternal attachment point and the ground.
What is the best anchor point for drawing a bow?
- The anchor point may be the corner of your mouth, your cheekbone, or your chin.
- Practice will help you determine your best anchor point—one that’s both comfortable and provides the most accurate shooting.
- Your fingers should touch the same anchor point each time you draw the bow.
What is the safest way to work at heights?
Working from the ground
is always the safest option.
Which of the following best describes self retracting lifelines SRLs )?
Self retracting lifelines (SRL) are
designed using webbing, wire rope, or a cable that automatically retracts into a housing unit, never allowing for any slack in the line
. SRLs are longer than lanyards and permit a larger working radius, even when using a fixed anchor point—which is typically overhead.
What safety factor should be used when determining the minimum load that an anchor point must support?
In all cases, a safety factor of
at least two
should be applied when determining the minimum load that an anchor point must support. When existing structural features or equipment are used as anchor points, avoid corners or edges that could cut, chafe, or abrade fall protection components.
