BS EN 12811-4:2013
$142.49
Temporary works equipment – Protection fans for scaffolds. Performance requirements and product design
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 26 |
This European Standard specifies product requirements, methods of structural and general design and tests for protection fans for scaffolds to protect workers as well as members of public from objects that may fall off the outside edge of scaffolds being used close to where they are working or passing by.
This European Standard only applies to protection fans while the scaffold is being used as a working place.
Protection fans attached to structures other t han scaffolds as defined in EN 12811-1 are outside the scope of this European Standard.
This European Standard applies only to protection fan systems on to which construction debris may fall from 24 m or less.
This European Standard ensures resistance of protection fans for most blunt falling objects representing an impacting energy not exceeding 720 J.
NOTE This energy corresponds to a 3 kg object falling from 24 m.
This European Standard does not cover the requirements for the total area to be protected a gainst falling items.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 8 | 1 Scope 2 Normative references 3 Terms and definitions |
| 10 | 4 Classification 4.1 Rules for classification Table 1 — Classification of protection fans 4.2 Snow loading classification Table 2 — Snow loading classes of protection fans 4.3 Shape classification Table 3 — Shape classes |
| 11 | 4.4 Width classification Table 4 — Width classes 5 Designation 6 Materials 6.1 General 6.2 Specific material requirements 6.2.1 Steel |
| 12 | 6.2.2 Timber 7 General requirements 7.1 General 7.2 Dimensions 7.2.1 Width |
| 13 | Figure 3 — Detail of measurement of width of protection fan (B) 7.2.2 Minimum inclination of protection fan 7.3 Components and elements 7.3.1 Couplers 7.3.2 Steel scaffold tubes (circular) |
| 14 | 7.3.3 Aluminium scaffold tubes (circular) 8 Requirements for design 8.1 Basic requirements 8.1.1 General 8.1.2 Arresting surface 8.1.3 External support 8.1.4 Fixings for protection fans 8.2 Structural design 8.2.1 Method of design 8.2.2 Special requirements for timber |
| 15 | 8.2.3 Partial safety factor 8.2.3.1 Ultimate limit state 8.2.3.2 Serviceability limit state 8.2.3.3 Uplift checks 8.3 Actions 8.3.1 General |
| 16 | 8.3.2 Permanent and variable imposed loads 8.3.2.1 Class V0 8.3.2.2 Class V1 8.3.3 Variable Imposed loads: Class V1 8.3.3.1 Working wind and maximum wind 8.3.3.2 Aerodynamic force coefficient cf 8.3.3.3 Erection loads – operatives (EL) 8.3.3.4 Snow Loads |
| 17 | Figure 4 — Intensity of snow load 8.4 Load combinations Table 5 — Combinations of loads to be used 8.5 Falling object impact loads 9 Testing to verify performance 9.1 Purpose of testing |
| 18 | 9.2 General 9.3 General description of test components 9.3.1 Test sample 9.3.2 Test impactor 9.4 Test 9.4.1 Principle of the test 9.4.2 Test set up |
| 19 | Figure 5 — Test set up (illustrative only) 9.4.3 Test procedure Figure 6 — Illustration of test drop positions |
| 20 | 9.4.4 Results to be recorded 9.4.5 Compliance with the testing requirements 9.4.6 Test report 10 Assessment of compliance |
| 21 | 11 Manuals 11.1 General 11.2 Content of a product manual 12 Marking |
| 23 | Bibliography |
