20.5.1 When an anchor mass is more than 30kg,
an efficient mechanical means should be provided for handling the
anchor.
20.5.2 There should be a strong securing point
on the foredeck or equivalent structure and where appropriate a fairlead
or roller at the stem head.
20.5.3
Area of Operation Category 0,1, 2,
or 3
-
.1 A vessel should be provided with at least two
anchors (one main and one kedge or two main) and cables, subject to Section 20.1
and in accordance with the requirements of Table 1.
-
.2 Anchors of equivalent holding power may be
proposed and provided, subject to approval by the Certifying Authority.
20.5.4
Area of Operation Category 4 and
5
A vessel should be provided with at least two anchors (one main and one
kedge or two main), the masses of which may not be less than 90% of the requirements of
Table 1, with corresponding cables and subject to approval by the Certifying
Authority.
20.5.5
Area of Operation Category 6
An anchor of sufficient mass for the size and type of vessel
must be provided, and as a minimum the mass should correspond to that
of a kedge, as illustrated in the table.
Table 20.1 Anchors and
Cables
|
|
Anchor Mass
|
Anchor Cable
Diameter
|
Mean Length
(See note 4)
|
Main
|
Kedge
|
Main Chain Rope
|
Kedge Chain
|
Rope
|
|
| (metres)
|
(kg)
|
(kg)
|
(mm)
|
(mm)
|
(mm)
|
(mm)
|
| 6
|
8
|
4
|
6
|
12
|
6
|
10
|
| 7
|
9
|
4
|
8
|
12
|
6
|
10
|
| 8
|
10
|
5
|
8
|
12
|
6
|
10
|
| 9
|
11
|
5
|
8
|
12
|
6
|
10
|
| 10
|
13
|
6
|
8
|
12
|
6
|
10
|
| 11
|
15
|
7
|
8
|
12
|
6
|
10
|
| 12
|
18
|
9
|
8
|
14
|
8
|
12
|
| 13
|
21
|
10
|
10
|
14
|
8
|
12
|
| 14
|
24
|
12
|
10
|
14
|
8
|
12
|
| 15
|
27
|
13
|
10
|
14
|
8
|
12
|
| 16
|
30
|
15
|
10
|
14
|
8
|
12
|
| 17
|
34
|
17
|
10
|
14
|
8
|
14
|
| 18
|
38
|
19
|
10
|
16
|
8
|
14
|
| 19
|
42
|
21
|
12
|
16
|
10
|
14
|
| 20
|
47
|
23
|
12
|
16
|
10
|
14
|
| 21
|
52
|
26
|
12
|
16
|
10
|
14
|
| 22
|
57
|
28
|
12
|
19
|
10
|
16
|
| 23
|
62
|
31
|
12
|
19
|
10
|
16
|
| 24
|
68
|
34
|
12
|
19
|
10
|
16
|
| Notes: -
1. Chain cable diameter given is for short
link chain. Chain cable should be sized in accordance with EN 24 565:1989
(covering ISO 4565: 1986 and covered by BS 7160:1990 - Anchor chains for
small craft), or equivalent.
2. The rope diameter given is for nylon
construction. When rope of another construction is proposed, the breaking
load should be not less than that of the nylon rope specified in the
table.
3. When anchors and cables are manufactured
to imperial sizes, the metric equivalent of the anchor mass and the cable
diameter should not be less than the table value.
4. For the purposes of this section, mean
length is defined as:-
|