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ahmadaseer@yahoo.co.in  
#1 Posted : 25 September 2024 07:45:17(UTC)
Rank: New forum user
ahmadaseer@yahoo.co.in

Can anyone assist me in clarifying with requirements and reference standards of  use of web slings for lifting suspended man baskets by crane?

EN 14502-1 requires as noted below without mentioning the web slings: 

Suspended baskets attached to the crane hook with steel wire rope slings or chain slings with an enhanced safety factor of at least:

(i)8 x (weight of basket + rated capacity) for chains

(ii)10 x (weight of basket + rated capacity) for steel wire ropes

Does it means webslings are PROHIBITED in lifting suspended man basket by crane? Or Is there any other standard that allows it?

Roundtuit  
#2 Posted : 25 September 2024 08:37:19(UTC)
Rank: Super forum user
Roundtuit

IF webbing slings had been considered by those writing this standard then they would have included a notation regarding the appropriate safety factor.

Given the title of EN 14025-1 Cranes - Equipment for the lifting of persons - Part 1: Suspended baskets

Its scope: applies to baskets suspended on cranes. This European Standard does not cover the controls for the movement of the basket. This European Standard deals with all significant hazards, hazardous situations and events relevant to suspended baskets, when used as intended and under conditions foreseen by the manufacturer (see Clause 4). The significant hazards covered by this document are identified in Clause 4.

I do not believe you will find a European Standard accepting the use of webbing slings.

Roundtuit  
#3 Posted : 25 September 2024 08:37:19(UTC)
Rank: Super forum user
Roundtuit

IF webbing slings had been considered by those writing this standard then they would have included a notation regarding the appropriate safety factor.

Given the title of EN 14025-1 Cranes - Equipment for the lifting of persons - Part 1: Suspended baskets

Its scope: applies to baskets suspended on cranes. This European Standard does not cover the controls for the movement of the basket. This European Standard deals with all significant hazards, hazardous situations and events relevant to suspended baskets, when used as intended and under conditions foreseen by the manufacturer (see Clause 4). The significant hazards covered by this document are identified in Clause 4.

I do not believe you will find a European Standard accepting the use of webbing slings.

KaranIOSH  
#4 Posted : 25 September 2024 09:42:28(UTC)
Rank: Forum user
KaranIOSH

Hello

EN 14502-1 lays out the safety requirements for suspended baskets designed to lift people using cranes.

Some key points from EN 14502-1:

Suspension Requirements: The baskets must be attached to the crane hook using steel wire rope slings or chain slings with a higher safety factor.

  •     Chains: Must support 8 times the weight of the basket plus its rated capacity.
  •     Steel wire ropes: Must support 10 times the weight of the basket plus its rated capacity.
  •     Design and Construction: The baskets should have solid sides up to 500mm high, a slip-resistant floor, and enough foot space to prevent crushing hazards.
  •     Load Testing: The baskets must undergo load testing to ensure they can safely handle the specified weight.

Web Slings are not specifically mentioned so i will say they are prohibited, hope this helps :)

peter gotch  
#5 Posted : 25 September 2024 10:17:48(UTC)
Rank: Super forum user
peter gotch

Hi Ahmad

Your first posting here so welcome to the Forums.

Your profile indicates that you are in Qatar so the correct answer to your question probably depends on what Qatari legislation says, and if that doesn't cover the issue, then what the project requirements are.

If as example, your site works to UK standards, then the BS implies that webbing slings would not be acceptable, but compliance with a BS isn't a mandatory legal requirement in the UK (with a couple of exceptions) and the relevant legislation aka LOLER won't give you a specific answer to your question, instead saying that you need suitable equipment and a suitable lifting plan.

However, I think someone is going to find it very difficult to justify using webbing slings in the application you set out.

Why not put the onus on whoever is proposing such a solution to explain why they don't want to follow normal practice?

ch.v.s.r.r.varma  
#6 Posted : 01 October 2024 15:00:56(UTC)
Rank: New forum user
ch.v.s.r.r.varma

Since web slings are not listed in EN 14502-1, this implies that they are likely prohibited and not covered under this standard for such high-risk applications.

General Standards for Web Slings in Lifting Operations:

  • EN 1492-1 is the European standard for web slings, it regulates their general use for lifting loads, it does not specifically address lifting personnel. Web slings are generally used for load lifting, not personnel, due to concerns about stretch, durability, and the potential for damage that could compromise safety.
  • OSHA (Occupational Safety and Health Administration) regulations (29 CFR 1926.1431) in the U.S. also do not recommend the use of web slings for lifting personnel baskets. OSHA typically requires that lifting personnel must use rigging with a safety factor of at least 10x the intended load, and wire rope or chain slings are typically used in compliance with these safety factors.

Why Web Slings are Not Suitable for Lifting Personnel:

  1. Stretch and Elasticity: Web slings tend to stretch under load, which can lead to instability and jerking motions during lifting operations.
  2. Abrasion and Wear: Web slings are more susceptible to damage from cuts, abrasion, and UV degradation, which can weaken the sling and pose a hazard during lifting operations.
  3. Lack of Redundancy: Web slings do not typically have the same level of redundancy or robustness as steel wire rope or chain slings, which are critical in personnel lifting for safety reasons.

Conclusion:

Based on EN 14502-1 and general safety practices, web slings are not permitted for lifting suspended man baskets by crane, and steel wire rope or chain slings should be used due to their superior safety and durability characteristics. globally leans against using web slings for personnel lifting.

thanks 1 user thanked ch.v.s.r.r.varma for this useful post.
Roundtuit on 02/10/2024(UTC)
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