MANAGING SHARP EDGES IN WORK-AT-HEIGHTOPERATIONS

As technology has advanced, ropes used in the work-at-height industry have become extremely strong, making them virtually

unbreakable under normal human force. However, introducing certain elements when working with ropes can dramatically

alter this picture, potentially leading to fatal consequences. One of the most significant risks to manage when working at height

is sharp edges. The impact of a sharp edge on a fully loaded rope is often underestimated. Even slight movement of the rope,

whether up and down or side to side, can quickly exacerbate the damage, leading to severe rope failure.

Sharp edges must be carefully considered when planning work-at-height operations. It is essential to have a competent

supervisor who understands the risks and can ensure safe and efficient rigging procedures.

U N D E R S TA N D I N G T H E R I S K O F S H A R P E D G E S

A general rule of thumb is that any edge with a radius of less

than 5 mm should be regarded as potentially hazardous to soft

materials like ropes and slings. Abrasive surfaces, such as rocks

or concrete, or hot surfaces can also significantly compromise

the integrity of your system, leading to dangerous situations.

EFFECTIVE STRATEGIES FOR MANAGING SHARP EDGES

The following hierarchy of controls offers several strategies for mitigating the risk of sharp edges during work at height. These solutions are listed from the most effective to the least:

1. Avoid the Edge

The simplest and most effective way to manage sharp edges is to avoid them entirely. By slightly adjusting the rigging

system’s placement, you may be able to bypass the sharp edge without compromising the job’s requirements.

2. Modify the Edge

If permitted by the structure owner or landlord, you could modify the edge to make it less hazardous. This could involve

smoothing or rounding the edge with a grinder or file, reducing the risk of damage to ropes or slings.

3. Use Edge Protection

Edge protection is the most common method of managing sharp edges. It allows you to work in the originally planned

area without making major structural changes. However, not all edge protection is created equally, and understanding the

particular edge protection’s limitations is vital.

? Soft Edge Protection: While versatile and useful for preventing minor abrasions,

soft edge protection can wear through under a heavy or sustained load and is

ineffective against heat or extreme friction.

? Hard Edge Protection: More durable options, such

as cargo corners or round steel pipes, can be placed

over the edge to protect the rope. These are often

used in more challenging environments where sharp

or abrasive surfaces are unavoidable.

Additionally, ropes with built-in edge resistance, like the

Gravity Gear Shock Absorbing Lanyard, offer special

protection against sharp edges

4. Do Not Proceed if Risks Cannot Be Mitigated

If none of the above methods can effectively manage the risk, the safest course

of action is to halt the operation. Continuing work in such conditions could be

life-threaten.

A D D I T I O N A L CO N S I D E R AT I O N F O R R I G G I N G O P E R AT I O N S

In rigging operations, ropes do not stay static; they frequently move over edges,

increasing the risk of wear and tear. This movement can cause ropes to chafe against

large areas, potentially leading to rope failure. To counteract this, edge rollers can be

used to allow ropes to glide smoothly over sharp edges, reducing friction and making

lifting operations safer and more efficient.