Dropped objects are a major source of incidents in heavy industries. In the drilling industry offshore dropped objects are listed in the top ten of most frequent incidents. By securing overhead fixtures items at height (e.g. speakers, cctv camera, navigation lights, flood lights or strip / TL lights, etc.) using secondary locking devices and additional securing techniques incidents are prevented and risk for dropping or falling objects is reduced significantly for people working below these items.
Dropped objects are prevented using secondary retention nets. These specifically designed safety nets secure, enclose and tether overhead fixtures items with the purpose to prevent an item at height from falling when its primary attachment fails. In other words this dropped object prevention safety net will catch the equipment at height when brackets corrode or connections to structure fails (e.g. impact by crane, fatigue, etc). The nets are designed for onshore and offshore installations.
To prevent objects from falling from height the safety nets are wrapped around the objects. The size of the object determines the size of the Safety Net Roll required. A strong lanyard is supplied to weave through the netting and wrap and lock the ends of the safety net to the solid structure. This secondary retention method is commonly applied to protect the lives of the workers and pedestrians.
Several load test are performed at the Langman Ropes factory (family owned since 1638 and still provides real craftsmanship). The safety net crimping’s are the weakest link in the safety nets. Testing these crimping’s will provide the exact safe work load (SWL) of the safety net. The crimping actual load testing is witnessed by classification companies: DNVGL (Det Norske Veritas Germanischer Lloyds) and ABS (American Bureau of Shipping). Actual Break Load of crimping is verified at:
- Safety Net (ø 2.0 mm – AISI316) – Actual Break Load: 187 kg (414 lbs),
- Safety Net (ø 2.5 mm – AISI316) – Actual Break Load: 273 kg (602 lbs)
Safe Work Load (SWL) tested and verified:
- Safety Net (2.0 mm – AISI316) –Safe Work Load: 37,5 kg (82 lbs)
- Safety Net (2.5 mm – AISI316) –Safe Work Load: 54,6 kg (120 lbs)
DNVGL & ABS of actual load testing certificates for the safety nets (Verification of Safe Work Load [SWL] by Load Testing) are available and can be submitted on request.
Where to use
Our Dropped Objects Prevention Safety Net Rolls are used when:
- Objects / Fixtures located in areas difficult to access for maintenance or inspection
- Objects / Fixtures installed which present dropped object risk at height
- Objects / Fixtures on impact zones of mobile equipment (e.g. crane booms, derricks, drill rigs, draglines and shovels)
- Objects / Fixtures and mountings exposed to vibration wear and fatigue
- Objects / Fixtures exposed to corrosion
Examples of Object / fixtures for secondary retaintion:
- Seld-retracting lifelines
- Visual Sign lightning
- Portable lightning
- Fixture Poles lightning
- Hangers lightning
- Photocontrol lighting
We get a lot of questions about our safety netting fall protection. Below you can read more about their answers.
what are safety nets?
Safety nets for fall protection are generally used at high-rise building construction sites in order to prevent objects from falling on the worksite. These nets are different from oil nets or other safety net systems in that they are a form of secondary protection in case the primary safety fails. We have two options available. One option is a safety net roll, which can be cut and used according to what size is needed. Another option we offer is custom sized nets, which is implemented fast as it requires no modification and is made for the object itself.
What is secondary retention?
Safety Nets Fit-to-size are used for secondary retention. It secures, encloses and tethers overhead fixtures to prevent dropped objects to the work floor when its primary attachment (or installation bracket) fails.
Why dropped objects prevention?
The accidental dropping of tools and equipment poses a safety threat to workers operating at elevated heights. It is therefore important to take precautionary measures to reduce the frequency of such accidents. Tools, equipment and mounted objects in an elevated location have the potential to fall due to movement. These nets are designed to protect employees from severe injuries in a wide range of working environments. The dropped object prevention safety net will catch the equipment at height when brackets corrode or connections to structure fails (e.g. impact by crane, fatigue, etc). The nets are designed for onshore and offshore installations.