Edge Restraint Flashcards

(22 cards)

1
Q

What is considered an unsecured area in QFR?

A

Any environment within three metres of a vertical edge with no physical protection to prevent falls.

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2
Q

What must all QFR personnel be secured with when operating within 3m of an unprotected edge?

A

An edge restraint system that physically prevents them from being exposed to a risk of a fall.

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3
Q

What are the two points of contact (POC) required near an edge?

A
  • Effective/solid contact of feet on ground
  • An enclosed LRL line, secured to a bomber anchor.
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4
Q

What defines an enclosed system in edge safety?

A

When the lines are tied and terminated onto the technician’s harness.

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5
Q

What is the purpose of a restraint technique?

A

To control a person’s movement by physically preventing them from reaching the edge or a position at risk of a fall.

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6
Q

What must be considered when determining if secure footing can be maintained?

A
  • Slope of the surface
  • Supporting material type
  • Texture of the surface
  • Likelihood of being wet, oily, or slippery.
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7
Q

When is it not suitable to use a restraint technique?

A
  • User can reach a position where a fall is possible
  • User has a length-adjustable restraint line
  • Danger of falling through a fragile surface
  • Slope is over 15 degrees
  • Any other misuse that could lead to a free fall.
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8
Q

List some common restraint techniques.

A
  • AZTEK edge restraint
  • LRL with adjustment Prusik
  • Single LRL belay.
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9
Q

What is the AZTEK edge restraint used for?

A

To allow the user to approach an edge while preventing them from reaching a position at risk of a fall.

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10
Q

What is a key requirement when using the AZTEK edge restraint?

A

A travel-limiting knot must be placed in the line.

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11
Q

What are the limitations of the AZTEK edge restraint?

A

It is not rated for fall arrest and can only be used for edge restraint.

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12
Q

What is the LRL with adjustment Prusik method?

A

An improvised method of the AZTEK edge restraint using an LRL, which must be an enclosed system.

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13
Q

What is a significant danger of using the LRL with adjustment Prusik?

A

It has extremely limited shock-absorbing capacity and is not a fall arrest system.

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14
Q

Describe the Single LRL belay method.

A

Uses a single LRL system through a belay device to lower the technician and lock them securely in place.

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15
Q

What is fall arrest?

A

A system that protects the technician once a fall has occurred.

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16
Q

What is the most common fall arrest device used in QFR?

17
Q

What must be done before using the ASAP within 3m of an uncontrolled edge?

A

Tie a stopper knot to prevent moving into a position where a fall is possible.

18
Q

What is a tensioned lifeline?

A

A fall arrest system used to move multiple people through an unprotected area on a horizontal plane.

19
Q

What are the requirements for using a tensioned lifeline?

A
  • Only one lifeline can be used in an area with anchors up to 20m apart
  • Risk of increased fall due to deflection
  • Only one person on the span at a time.
20
Q

What is an un-tensioned lifeline?

A

A fall arrest system that allows multiple people to move through an unprotected area without the span limitation of a tensioned lifeline.

21
Q

What must be done during the setup of an un-tensioned lifeline?

A
  • Use intermediate anchors no more than 3m apart
  • Ensure high-risk situation is addressed during setup.
22
Q

What is the first step in setting up an un-tensioned lifeline?

A

Check the rope, tie a stopper knot in the tail end, and anchor the LRL in the safe area.