Frequently asked Questions- Safety Netting

What is Netting or Safety Netting?

Safety netting  is a collection of interwined,knotless  webbing which provides a means of Control measure and Practicable Solution, protection to and for Workers and  Public safety  when working at heights.
 It is also physical barrier to mitigate and prevent falls at midpoint.
In addition,by placing  debris mesh or overlay protection netting on top of the Safety nets to stop smaller objects from falling below. It is great measure of control when working below.
 
So the intention in using Safety Nets when working at heights is to prevent incidents and save lives!
 

For Safety Netting Conformity and specification:  must be manufactured to and in accordance with BS1263-1:2002.

Safety Nets Specification!

  • Certification- Labels
  • Twine/Mesh Cord Size 5mm ( Aperture size 100mm, 60mm, 45mm)   Breaking Force  2.2kn   
  • SWL:               350kg                 
  • Four Corners
  • Border Rope(12mm, 3 strand)  Breaking Force 30kn                          
  • Test Patches.
How do Safety Nets Work?
The Safety Netting fall arrest works by a way absorption of  the energy created during  the fall,  the interwind meshes are released slowly through cords system in the nets and thus having the correct sag is very critical part of installation for the nets to able adhere to conditions**

Standards:           BS EN 1263-1, 1263-2 (2002), ASNZ4576, ISO9001:2008

Guideline:             Safety Nets Installation and Training Manual

 In Australia, it is Performanced based approach when working at heights, and while still relying on the ISO9001:2008, British and European Standards.
 
 Why Install Safety Nets?
It is another form of fall arrest system that has many benefits and apart from  delivering cost and time savings; while producing excellent  fall arrest system and it is part of the solution when working at heights.

 Suppliers of  Safety nets?
  •  To meet WHS 2012 ACT/ OHS requirements in Australia . The Obligations are on the Suppliers and Manufactures  must supply nets, and devices as per specification,  but also included a 'duty of care'  and must  provide Training and Instructions/ Information as part of the order.

Who Can Install Safety Nets and Inspect?

  •  INSTALLERS- The Law says training must be provided and therefore personnel installing/ rigging safety nets onsites or structures must be Ticked  i.e (Scaffolders/ Riggers/ Trades ) Competent and have Received Training to Safety nets guidelines** regardless of their background.
  • Net Inspectors- have role to validated installation in accordance with documentations, must be competent and have received some form of training to Safety Nets Guidelines.**

  How does Installation and Inspection Process affect Safety onsite?

The handover process provides professional protection and accountability through correct hand over documentations and Net Inspection follows  that Installations of Safety Nets has been completed to meet Legislative requirements and guidelines.
  • The Ongoing visual Inspections,
  • Monthly Tagging and Labels and
  •  Maintenance (Net register) during and after for Safe use.
  • If Safety nets are damaged  then nets must not be used and returned to the supplier for further inspections and repairs and make acceptable.**
  • Hand Rails- (in the Fall Arrest Environment) must withstand force of 6kn as a stability isthe  key factor of having sound structure. As Guide, this practice is not acceptable nor should be part of the training.
 Emergency Response Procedure
If your are using Safety Nets onsite then it is a 'must'  to have Emergency Response procedure onsite, aiding Site Emergency Plan **

 Is the Annual 'UV' testing important?

 As Safety nets are installed in open environment and because Safety Net  system is created from polyproplene which is less resistance to UV light which is found in Sunlight.
Every Safety Net manufactured to BS1261-1, has three test mesh attached to corner and every year or no more than 12 month periods a test mesh will be taken off and send for testing in accordance with ISO 1806 and this test must be recorded as proof of evidence that nets can remain in services for next 12 months.If the Test mesh fail, this net must be removed from services as the mesh has started to be weakened. Best way to check is the discolouration of mesh/twines of net. At Safety Nets Australia we provide this services.

 What should the Clearence Factor be under the Safety Nets when suspened?

While there number of factors/ elments effects the clearence, will mention just a few.
 It is important to ensure that there is sufficient space (clearance) below the safety net to allow for delfection under arrest without striking a hazard, but in the normal course of installation of suspended nets it 3.0m high.However, Span plays a major factor and so does the fall(how high).
Safety Nets Fall arrest system designed to withstand 6m fall,however in Australia, best practice not more than 2.0m .
Planning is another important Factor :Fall arrest VS Prevention as Safety nets can do either pending on size of the net.**
What is the strenght of Anchor Points required when suspending  Safety Netting onto Structure:, 6kn-4kn,as the fixing points based on multi point fixing connections rather than one point.
 

 Intended Applications and Best Use!

 Safety Nets are the most efficient and cost effective fall prevention barrier for many different applications:
    • MINING 

    • Maintenance of fragile Roofs/ Skylights / Glass Atriums

    • Demolitions - Roof Structures/ Voids protections

    • Internal Voids 
    • Steel & Metal Formwork 
    • Bondeck placement
    • Housing Constructions -Erecting Roof Trusses on Timber | Steel Roof Frames
    • Vertical Net for Debris protection

What can go wrong with Safety Nets Installation?

  • Incorrect Installation- not as per Safety Nets guidelines and Instructions
  • No Training- Competency/ Skills factor
  • Unsafe Structure- Stability factor required Structure must be Sound and withstand 6kn as mim.
  • No annual UV testing- Test mesh have not been sent for testing. Conditions of Nets unknown!
  • No history of Net register or documents
  • No Handover documents
  • Inspection process not carried out
  • the use of wrong devices and incorrect spacing of fixing/ anchor points
  • Having the correct Sag 5-10%,
  • Clearence Factor below the nets

Working At Heights- NEW  WHS 2012 ACT/ OHS Requirements- Safe Work Australia

Responsibilities Working at Heights - E.g. NSW OHS ACT and NSW
OHS Regulation 2001 Clause 56 (1) - Prevention of falls from heights
 
"(1) An employer must ensure that risks associated with falls from a height are controlled by use of the following measures: (a) provision and maintenance of: (i) a stable and securely fenced work platform (such as scaffolding or other form of portable work platform), or (ii) if compliance with subparagraph (i) is not reasonably practicable-secure perimeter screens, fencing, handrails or other forms of physical barriers that are capable of preventing the fall of a person, or (iii) if compliance with subparagraph (ii) is not reasonably practicable - other forms of physical restraints that are capable of arresting the fall of a person from a height of more than 2 metres,
    
Falling objects - particular risk control measures - OHS Regulation 2001 Clause 57
 
 
An employer must ensure that risks associated with falling objects are controlled by use of the following measures:
(a) provision of safe means of raising and lowering plant, materials and debris in the place of work,
(b) provision of a secure physical barrier to prevent objects falling freely from buildings or structures in or in the vicinity of the place of work,
(c) if it is not possible to provide a secure physical barrier, provision of measures to arrest the fall of objects,
(d) provision of appropriate personal protective equipment.
 
Safety Nets Australia net systems fully comply with these provisions.

we will be adding more at later date!!

**for additional reading  see our 'Safety Nets Installation Manual 'which you can buy from us.

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Over Sewerage Treatment Plant, Canberra

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Glass Atrium_Gold Coast

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Formwork and Bondek Placement