edge protection
Edge protection is the collective term in occupational safety and quality assurance for all measures that prevent an edge itself from being damaged or that prevents an edge from causing damage to other objects or people .
In addition to safety measures such as the marking of edges, edge protection also includes edge protection means , i.e. objects that cover the edge or prevent contact with the edge. However, the term does not include protection against falling or tripping over structural edges, the risk of tripping or falling .
Marking of edges
Dangerous edges are identified internationally by means of diagonal yellow-black or red-white stripes.
Edge protection agent
In logistics , the EN 13393 packaging specification for edge protection products is decisive .
- Special edge protection profiles made of plastic or cardboard are usually used for the packaging of metal sheets. On the one hand, these protect against injuries during transport by hand or bumps and, on the other hand, they prevent corrosion by protecting the oxide layer at the edges.
The term also includes all documents between the load or the goods and the securing and slinging means that are intended to prevent an edge of the goods from chafing through. In the event of fraying, the securing means becomes ineffective and the load may shift or the goods could fall down when being lifted, both of which are events with great potential for damage. In addition, even minor damage to safety or sling equipment leads to long-term wear , which affects their quality and reliability. In addition, the edge protection has an important function in the distribution of forces when securing loads . Only with its use is a sufficiently high pre-tensioning force achieved on the side facing away from the tensioning element. Without edge protection, the sliding friction between the securing means and the goods to be secured would be too high.
In this context, a sharp edge applies "if the edge radius (r) is smaller than the diameter (d) of the lifting gear ." (DIN 15020-1 hoists ; principles for rope drives , calculation and execution )
- In this context, edge protection means include edge protection angles and edge protection plates that are placed over the edge, edge tabs that are placed over two edges ('edges' of flat objects), various sheaths ( edge protection jacket ) as well as round slings and protective tubes that are placed over the rope and harness are pulled.
When we talk about edge protection angles , we usually mean multi-layer profiles made of gray cardboard, kraft liner or various composite materials that influence the properties of the profiles. In addition to their original purpose of protecting the edges of goods and goods, they also fulfill additional tasks. Edge protection angles with aluminum coating defy the weather and retain their protective properties even when exposed to moisture. Edge protection angles with V-shaped cut-outs secure the edges of round goods and can be individually adjusted in length and shape.
- In the case of the fire brigade , THW and disaster control , edge protection means all aids that are used to protect fixed ropes or belts on sharp edges. Old blankets, gloves, etc. can be used for this, but the fall protection set also includes commercially available edge protectors.
- Edge protection is also necessary when climbing in climbing locations with sharp-edged rocks, as without this the rope can chafe through or if you fall into the rope, the edge can be torn.
In mechanical engineering , plastic or rubber profiles are used analogously as edge protection , which prevent electrical cables and plastic hoses from being chafed through on sharp edges. The use of edge protection is particularly important for parts that move during operation.
Individual evidence
- ↑ z. B. Accident prevention regulations - safety and health protection signs at the workplace . Version from June 2002 edition. o. O. September 1994, Annex Principles for the Design of Safety Signs 6. Hazard identification by yellow-black or red-white stripes via uni-hannover.de, p. 30 (pdf) ( GUV-V A8 Annex 1 and 2 (pdf 346 kB) [accessed on February 1, 2016] also warn of crushing and shearing points ).
- ↑ ÖNORM EN 13393: 2001 , Austrian building database .
- ↑ Gabi Förster: When is an edge sharp? In: FAQ. Hebezone GmbH, accessed on April 17, 2009 .
- ↑ Edge protection. In: Catalog. Hebezone GmbH, accessed on April 17, 2009 (overview of various product classes in lifting technology).
- ↑ Edge protection bracket. (No longer available online.) In: Catalog. KEMAPACK GmbH, archived from the original on May 31, 2014 ; accessed on May 27, 2014 (overview of different types of edge protection angles). Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
