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BSI DD 1722-18:2007

BSI DD 1722-18:2007

$102.76

Fences – Specification for steel mesh site perimeter temporary fencing systems

Published By Publication Date Number of Pages
BSI 2007 20
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PDF Catalog

PDF Pages PDF Title
3 Contents
1 Scope 1
2 Normative references 1
3 Fence panel 1
4 Footblock 4
5 Stabilizing system 5
6 Installation guidance 6
7 Renovation 6
Annexes
Annex A (normative) Test method to determine resistance to wind loads 7
Annex B (normative) Installation guidance 9
Annex C (normative) Renovation of damaged areas of pre-galvanized coating 11
Bibliography 12
List of figures
Figure 1 – Typical construction of a fence panel 3
Figure 2 – Typical footblock 4
Figure 3 – Examples of stabilizing systems 5
Figure A.1 – Apparatus for test to determine wind loading 9
Figure B.1 – Fence couplers 10
List of tables
Table 1 – Requirements for pre-galvanized wire mesh 2
5 Foreword
7 Introduction
1 Scope
2 Normative references
3 Fence panel
3.1 Frame
8 3.2 Mesh
Table 1 Requirements for pre-galvanized wire mesh
a) A minimum of 8 times down each vertical side of the fence panel; and
b) A minimum of 17 times along the top and bottom horizontal edges.
3.3 Complete panel
9 Figure 1 Typical construction of a fence panel
10 4 Footblock
COMMENTARY ON 4. The footblock is an integral part of the fencing system but can be a tripping hazard. The footblock is sufficient to support the fence during installation but a stabilizing system should be added as soon as possible.
Figure 2 Typical footblock
11 5 Stabilizing system
Figure 3 Examples of stabilizing systems
12 Figure 3 Examples of stabilizing systems (continued)
6 Installation guidance
7 Renovation
13 Annex A (normative) Test method to determine resistance to wind loads
A.1 Principle
A.1.1 General
A.1.2 Initial calculations
a) Dynamic pressure
b) Load
14 c) Overturning moment
d) Test mass
A.2 Apparatus
A.3 Procedure
A.4 Expression of results
a) < 250 mm: the fence panel has passed the test;
b) U250 mm: the fence panel has failed the test.
A.5 Test report
a) Reference to this Draft for Development, i.e. DD 1722-18:2006, Annex A.
b) Details of the fence including the following items.
2) Details (including size, weight and any product identifiers) of the panel, footblocks and stabilizing system used.
15 c) The type of ground (e.g. dry grass, high-density concrete) on which the fence was constructed.
d) The test mass used (see equation A.4 and A.3.3).
e) The outcome of the test (i.e. PASS or FAIL) according to A.4.
Figure A.1 Apparatus for test to determine wind loading
Annex B (normative) Installation guidance
B.1 Footblocks
B.2 Fence panels
16 B.3 Fence couplers
Figure B.1 Fence couplers
17 B.4 Stabilizing system
B.5 Renovation
Annex C (normative) Renovation of damaged areas of pre-galvanized coating
18 Bibliography
[1] HSE Guidance Note HS G 151. Protecting the public, your next move. Sudbury: HSE Books, 1997.
[2] HSE INDG 143 (Rev. 2). Getting to grips with manual handling – A short guide. Sudbury: HSE.

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BSI DD 1722-18:2007
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