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BS 1722-2:2020 – TC

BS 1722-2:2020 – TC

$217.84

Tracked Changes. Fences – Specification for strained wire and wire mesh netting fences

Published By Publication Date Number of Pages
BSI 2020 98
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PDF Pages PDF Title
1 compares BS 1722-2:2020
2 TRACKED CHANGES
Text example 1 — indicates added text (in green)
5 Summary of pages
6 Foreword
Publishing information
Supersession
Relationship with other publications
Information about this document
7 Use of this document
Presentational conventions
8 Contractual and legal considerations
Compliance with a British Standard cannot confer immunity from legal obligations.
9 1 Scope
2 Normative references
11 3 Terms and definitions
12 4 Materials for general pattern strained wire fences
4.1 General
4.2 Wire
13 4.3 Concrete posts and struts
4.3.1 General
4.3.2 Materials
4.3.3 Tolerances on size
4.3.4 General construction
14 4.4 Steel posts and struts
4.4.1 Materials and protective treatment
4.4.2 Tolerances on size
4.4.3 General construction
4.4.4 Fence posts and struts
15 4.4.5 Base plates and dowels
4.4.6 Welding
4.5 Timber posts and struts
4.5.1 Materials
4.5.2 Tolerances on size
4.5.3 Timber fence posts and struts
16 4.6 Fittings
4.6.1 Eyebolt strainers
4.6.2 Winding brackets
18 4.6.3 Staples
19 4.6.4 Wire connectors
4.6.5 Nails, bolts, nuts and washers
4.7 Concrete surrounding bases of posts and struts
4 Materials
4.1 Wire for fencing
4.1.1 Plain wire and line wire
20 4.1.2 Barbed wire
4.1.3 Woven hinged joint and knotted mesh fencing
22 4.1.4 Hexagonal wire netting
4.2 Posts and struts
4.2.1 General
4.2.2 Timber posts and struts
4.2.2.1 Preservative treatment
4.2.2.2 General construction
23 4.2.2.3 Tolerances on size
4.2.3 Steel posts and struts
4.2.3.1 General
25 4.2.3.2 Materials and protective treatment
4.2.3.3 General construction
4.2.3.4 Tolerances on size
4.2.3.5 Welding
4.2.3.6 Renovation of damaged areas of hot dip galvanized coating
4.2.4 Concrete posts and struts
4.2.4.1 General
4.2.4.2 General construction
26 4.2.4.3 Tolerances on size
4.3 Fittings
4.3.1 Eyebolt strainers
4.3.2 Winding brackets
27 4.3.3 Staples
4.3.4 Wire connectors
4.3.5 Nails, bolts, nuts and washers
4.3.6 Droppers
4.3.7 Stirrup wire
4.3.8 Tying wire
4.3.9 Netting rings
4.3.10 Hog rings
4.4 Concrete surrounding bases of posts and struts
28 5 Installation of general pattern strained wire fences
5.1 Level
5.2 Posts and struts
5.2.1 General
5.2.2 Straining posts
5.2.3 Struts
5.2.4 Intermediate posts
29 5.3 Strained wire
5.3.1 Line wire
5.3.1.1 General
5.3.1.2 Attachment to straining posts
5.3.1.3 Attachment to intermediate posts
5.4 Barbed wire
30 5.5 Renovation of damaged areas of hot dip galvanized coating
5 Installation
5.1 General
31 5.2 Level
5.3 Posts and struts
5.3.1 General
33 5.3.3 Struts
5.3.4 Intermediate posts
5.4 Strained line wire
5.4.1 Attachment to straining posts
5.4.2 Attachment to intermediate posts
5.5 Barbed wire
34 6 Materials for dropper pattern fences
6.1 Wire
6.1.1 Line wire
6.1.2 Stirrup wire
6.1.3 Barbed wire
6.2 Concrete components
6.3 Steel components
6.4 Timber components
6.5 Fittings
6.5.1 Eyebolt strainers
6.5.2 Winding brackets
6.5.3 Staples
35 6.5.4 Wire connectors
6.5.5 Nails, bolts, nuts and washers
6.5.6 Droppers
6.6 Concrete surrounding bases of posts and struts
6 Installation of high‑tensile mesh fences
6.1 Level
6.2 Posts and struts
6.2.1 General
6.2.2 Straining posts, turning posts and contour posts
6.2.3 Struts
6.2.4 Intermediate posts
6.2.5 Mesh and netting
6.2.5.1 Rectangular wire mesh
36 6.2.5.2 Hexagonal wire netting
6.2.6 Barbed wire
7 Installation of dropper pattern fences
7.1 Line
7.2 Posts and struts
7.2.1 Straining posts
7.2.2 Struts
7.2.3 Intermediate posts
7.3 Strained wire and droppers
7.3.1 Line wire: General
7.3.2 Attachment of line wires to straining posts
7.3.3 Attachment of line wire to intermediate posts
37 7.3.4 Droppers
7.3.5 Line wire tension
7 Installation of mild steel wire mesh fences
7.1 Level
7.2 Posts and struts
7.3 Strained wire and mesh
7.3.1 Rectangular wire mesh
7.3.1.1 General
7.3.1.2 Attachment to straining posts
7.3.1.3 Attachment to intermediate posts
7.3.2 Hexagonal wire netting
7.3.2.1 General
38 7.3.2.2 Attachment of line wire to straining posts
7.3.2.3 Attachment of line wire to intermediate posts
7.3.2.4 Attachment of netting
7.3.3 Barbed wire
8 Materials for general pattern wire mesh fences [see Figure 3d)]
8.1 Wire
8.1.1 General
8.1.2 Rectangular wire mesh
8.1.3 Hexagonal wire netting
8.1.4 Stirrup wire
39 8.1.5 Tying wire
8.1.6 Barbed wire
8.1.7 Line wire
8.2 Concrete components
8.2.1 General
8.2.2 General construction
41 8.2.3 Fence posts and struts
42 8.3 Steel components
8.3.1 Materials and protective treatment
8.3.2 Tolerances on size
43 8.3.3 General construction
8.3.4 Fence posts and struts
8.3.5 Base plates and dowels
8.3.6 Welding
8.4 Timber components
8.5 Fittings
8.5.1 Eye bolt strainers
8.5.2 Winding brackets
8.5.3 Stretcher bars
8.5.4 Netting rings
8.5.5 Hog rings
8.5.6 Staples
44 8.5.7 Bolts, nuts, washers and nails
8.6 Concrete surrounding bases of posts and struts
8 Installation of dropper pattern fences
9 Installation of general pattern wire mesh fences
9.1 Line
9.2 Posts and struts
45 9.3 Strained wire and mesh
9.3.1 Rectangular wire mesh and hexagonal wire netting with 3 ply selvedges
9.3.1.1 General
9.3.1.2 Attachment to straining posts
9.3.1.3 Attachment to intermediate posts
46 9.3.2 Hexagonal wire netting without 3-ply selvedges
9.3.2.1 General
9.3.2.2 Attachment to straining posts
9.3.2.3 Attachment to intermediate posts
9.3.2.4 Netting
47 9.3.3 Barbed wire
129 Statement of conformity
12.19.1 Fence manufacturer
12.29.2 Fence installer
12.39.3 Certificate
12.49.4 Statement
10 Materials for spring steel and high tensile mesh fences
10.1 Wire
10.1.1 General
10.1.2 Barbed wire
10.1.3 Line wire
48 10.1.4 High tensile rectangular wire mesh
10.2 Timber components
10.3 Fittings
10.3.1 General
10.3.2 Wire connectors
10.3.3 Preformed lashing rods used to attach rectangular wire meshes to line wires
10.4 Concrete surrounding bases of posts
11 Installation of spring steel and high tensile mesh fences
11.1 Line
11.2 Posts and struts
11.2.1 General
11.2.2 Straining posts, turning posts and contour posts (see Figure 5)
49 11.2.3 Struts
11.2.4 Intermediate posts (stakes)
11.3 Strained wire and mesh
11.3.1 Line wires
11.3.1.1 General
50 11.3.1.2 Straining posts
11.3.1.3 Contour posts, turning posts and intermediate posts
11.3.2 Mesh and netting
51 11.3.3 Barbed wire
52 Annex A (informative)
A.1 General
A.2 Moisture meter method
A.2.1 Apparatus
A.2.2 Sample selection
A.2.3 Procedure
53 A.3 Oven-dry method
A.3.1 Apparatus
A.3.2 Sample selection
A.3.3 Procedure
54 Annex B (normative)
B.1 Material form
B.2 Material grades
55 B.3 Protective treatment
Annex AAnnex C (normative)
A.1C.1 Materials
A.1.1C.1.1 Cement
A.1.2C.1.2 Aggregate
56 A.1.3C.1.3 Admixtures
A.1.4 Chloride content
A.1.5C.1.4 Reinforcement
A.2C.2 Moulds
A.3C.3 Manufacture
A.3.1C.3.1 Mixing, placing and compaction
A.3.2 Placing and compaction
A.3.3C.3.2 Location of reinforcement
57 A.3.4C.3.3 Protection from freezing
A.3.5C.3.4 Maturing
A.4C.4 Surface characteristics
A.4.1 Surface finish as cast
A.4.2 Surface finish as treated
A.5C.5 Tests
A.6C.6 Product information
58 Annex D (informative)
Measuring line wire tension
59 Annex E (informative)
E.1 General
E.2 Site conditions
60 E.3 Construction of rectangular wire mesh and hexagonal wire netting fence
61 E.4 Construction of line wire fence with or without droppers
E.5 Other considerations
62 Bibliography
Standards publications
Other publications
67 Foreword
69 Introduction
1 Scope
2 Normative references
70 3 Terms and definitions
71 4 Materials
4.1 Wire for fencing
Table 1 — Typical spacings for strained line wire fences
72 Table 2 — Typical applications and dimensions of strained wire and wire mesh netting fences
4.2 Posts and struts
73 Table 3 — Typical sawn timber fence posts and struts
74 Table 4 — Typical round timber fence posts and struts
75 Table 5 — Typical steel fence posts and struts
77 Table 6 — Typical dimensions of concrete fence posts and struts
4.3 Fittings
79 4.4 Concrete surrounding bases of posts and struts
5 Installation
5.1 General
80 Figure 1 — Wire mesh netting fence
5.2 Level
5.3 Posts and struts
81 Figure 2 — Example positions of straining/turning posts at changes of direction (not to scale)
82 5.4 Strained line wire
83 5.5 Barbed wire
6 Installation of high-tensile mesh fences
6.1 Level
6.2 Posts and struts
84 7 Installation of mild steel wire mesh fences
7.1 Level
7.2 Posts and struts
7.3 Strained wire and mesh
86 8 Installation of dropper pattern fences
9 Statement of conformity
9.1 Fence manufacturer
9.2 Fence installer
9.3 Certificate
9.4 Statement
87 Annex A (informative)  Determination of moisture content for timber
88 Table A.1 — Determination of moisture content of timber to be treated for use in fencing
89 Annex B (normative)  Steel components and protective treatment
Table B.1 — Recommended steel grades
90 Annex C (normative)  Concrete components
92 Annex D (informative)  Measuring line wire tension
Figure D.1 — An example of a wire tension gauge
93 Annex E (informative)  Specifying a strained wire fence
96 Bibliography

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BS 1722-2:2020 - TC
$217.84