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The chains are important facility to safty operation of ship. Please use them in limitations safely.
Regulation of Ship facility regulate them as follows;
This regulation has been revised on July 1st 1998.
The size of chain which is thinning,should be decide as mean diameter at the most thinning.
Regulation of Ship facility Article 9 Added table 4
Original diameter | Thinned | Original diameter | Thinned | Original diameter | Thinned |
Diameter | Diameter | Diameter | |||
mm | mm | mm | mm | mm | mm |
12.5 | 11.5 | 40 | 36 | 70 | 62.5 |
14 | 12.5 | 42 | 37.5 | 73 | 65 |
16 | 14 | 44 | 39 | 76 | 68 |
17.5 | 15.5 | 46 | 41 | 78 | 70 |
19 | 17 | 48 | 43 | 81 | 72.5 |
20.5 | 18.5 | 50 | 44.5 | 84 | 75 |
22 | 19.5 | 52 | 46.5 | 87 | 78 |
24 | 21.5 | 54 | 48 | 90 | 80.5 |
26 | 23 | 56 | 50 | 92 | 82.5 |
28 | 25 | 58 | 52 | 95 | 85 |
30 | 27 | 60 | 53.5 | 97 | 86.5 |
32 | 28.5 | 62 | 55.5 | 100 | 89 |
34 | 30 | 64 | 57 | 102 | 91 |
36 | 32 | 66 | 59 | 105 | 94 |
38 | 34 | 68 | 61 | 107 | 95.5 |