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Rack Safety Net Guidelines

Rack and Shelf Safety Nets
Rack safety nets generally have three purposes of use:
rack safety nets for falling objectsSafety nets are used in high-bay warehouses to prevent goods from falling out of the rack and to protect people on traffic routes from falling objects.
The sides of the racking concerned are usually covered vertically in order to close the racking there - similar to a grid.
rack safety nets personal securityA second major application of nets in warehouses and racks is fall protection for persons. They are stretched horizontally to protect persons whose fall could not be prevented. The nets thus protect against injuries as a result of a deeper fall.
warehouse separation netsAs a third variant, nets are used in racks or warehouses as separation nets. These are used to divide storage areas within industrial halls or to secure goods laterally against tipping over. Lateral securing is often useful for intermediate floors or mezzanines to protect the goods from a major fall if they tip over.
The German Workplace Guidelines ASR 12/1-3 "Protection against Falls and Falling Objects" and ASR 17/1,2 "Traffic Routes" are authoritative for safety in rack storage areas.
According to these workplace guidelines, protective equipment such as safety nets must be installed at higher workplaces and traffic routes that are not adequately protected from falling objects by guardrails: Safety nets must be installed.
The German Social Accident Insurance (DGUV) has also published regulation no. 108-007, which specifies the requirements for safety measures in storage facilities.
For personnel safety nets in high-bay racking systems, nets with properties analogous to EN 1263 (safety nets) are used. The requirements are described in Annex 2 of DGUV regulation 101-011. Special provisions for installation in high-bay racking systems are also defined there.
3.1.1 
If nets are to be used for securing hazardous areas or as lateral fall protection for objects or persons, the load capacity of the material must be designed to meet the requirements of the loads that occur. We recommend using nets with a maximum mesh tensile strength of at least 800 N (at least 1600 N for personal protection). The mesh size depends solely on the size of the parts which must not fall through the net.
Montagevarianten
Rack Safety Nets Mounting with Steel Cable Frame

Steel Cable Frame

Steel wire ropes are stretched in front of the surface so that they form a frame for the safety net. The net can then be easily attached to the steel cable using snap hooks or shackles.

Rack Safety Nets Mounting with Straps

Straps

The net is connected directly to the shelf uprights and trusses using quick-release straps fasteners, disposable ties or similar. This type of fastening ensures quick assembly and disassembly.

Shelf Safety Nets Mounting with Ropes

Cords and Ropes

The mesh is tied directly to the supporting structure mesh by mesh. With this type of fastening, a very uniform mesh pattern and load distribution is achieved.

3.2.1 
The properties of nets used for fall protection for persons in rack systems correspond to those of net class B1 of EN 1263-1, but with a maximum mesh size of 45 mm. They must have a minimum energy absorption capacity of 7.92 kN when new. A shelf safety net for personal protection must have an area of at least 2 m². The span of the net (short side) must be at least 1.00 m.
The structure must be attached to load-bearing points. Each suspension point shall have been designed for a characteristic load of at least 6 kN at an angle of 45°. Three characteristic loads of 4 kN, 6 kN and 4 kN at the most unfavorable point shall be considered for the design of the structural members. The suspension points must not be more than 1.00 m apart.
Anchoring Forces
The forces that occur must be able to be safely absorbed and transmitted by the suspension points and structural parts.
Assembly
Rack Safety Nets DGUV 101-011 Assembly

Rack Safety Nets DGUV 101-011 Assembly

A rack safety net is installed using steel ropes with a minimum diameter of 6 mm. These are tensioned with rope tensioners in front of the surface in such a way that they form a frame for the safety net. The steel ropes must also be locked between the anchoring points in such a way that stretching in the direction of the net construction is restricted. This can be achieved, for example, by guiding the steel ropes through ring eyelets. The distance between the guide and suspension points must not exceed 1.00 m.

The net is then fastened to the steel cable frame with the edging. Sufficiently tension-resistant fasteners (e.g. safety snap hooks or shackles) must be used for this purpose.

The distance between the attachment points of the net must not exceed 35 cm.

Passende Produkte
 Ring Bolt M10
 Steel Cable 6 mm
 Shroud Turnbuckle with Brackets M10
 Safety Snap Hook 120 x 11 mm
Several shelf safety nets can be connected to each other. For this purpose, coupling ropes must be used in such a way that there are no gaps of more than 45 mm at the connection point and the safety nets cannot move more than 45 mm relative to each other. The coupling rope is threaded through the edge meshes of the two safety nets to be connected. The coupling ropes must have a minimum breaking strength of 7.5 kN in accordance with DIN EN 1263-1.
Safety nets can also be connected without a coupling rope by overlapping the nets. In this case, the overlapping of the abutting net edges must be at least 1.00 m.
3.3.1 
In the case of a net for securing goods, the thickness and mesh size depends on the expected load. In this case, nets similar to those used for vertical securing of high racks are used.
If the net is only to be used for separation of areas, simpler variants from 250 N maximum mesh tensile force can be used.
Assembly Variants
Separation Netting Mounting with Lead Cord

Steel Rope and Weighting

A steel cable is stretched at the required height. The net can be attached to it like a curtain by means of snap hooks. A steel cable can also be tensioned in the lower part. Alternatively, the net can hang freely. In this case, we recommend increasing the net width by approx. 10% and weighting the net with a lead cord or chain.

Separation Netting Mounting with Steel Cable

Stahlseilrahmen

Steel wire ropes are stretched in front of the surface so that they form a frame for the safety net. The net can then be easily attached to the steel cable using snap hooks or shackles.

Separation Netting Mounting with Straps

Straps

The net is connected directly to uprights using quick-release strap fasteners, disposable ties or similar. This type of fastening ensures quick assembly and disassembly.

Separation Netting Mounting with Ropes

Leinen

The mesh is tied directly to a supporting structure mesh by mesh. With this type of fastening, a very uniform mesh pattern and load distribution is achieved.

Downloads and Links
 DGUV Regulation 101-011 (PDF, German)
 DGUV Regulation 108-007 (PDF, German)

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