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Section 1 General
101. General and Application 【See Guidance】
1. The requirements in this chapter apply to equipment and installation for anchoring and mooring.
2. All craft, according to the equipment number given in Sec 3, are to be provided with anchors, chain cables, ropes, etc. which are not less than given in Table 4.3.2.
3. Anchors, chain cables, ropes, etc. for crafts having an equipment number of less than 30 or more than 500 are to be as determined by the Society.
4. The bower anchors given in Table 4.3.2 are to be connected to their cables and stored on board ready for use.
5. The anchors, chain cables and ropes (equipment) which are to be tested and inspected for craft classed with this Society are to comply with the requirements of this chapter.
6. All craft are to be provided with suitable appliances for the handling of anchors.
7. The inboard end of chain cable is to be secured to the hull through a strong eye plate by means of shackle or by other equivalent means.
8. Provisions not mentioned in this chapter are to comply with Pt 4, Ch 8. of Rules for the Classification of Steel Ships or are to be in accordance with the Guidance.
102. Materials
The materials for equipment specified in this chapter are to comply with each section and Pt 2, Ch 1. of Rules for the Classification of Steel Ships.
103. Process of manufacture
The process of manufacture for equipment specified in this chapter is to comply with the require- ments in each section.
104. Tests and inspections
1. All equipment described in this chapter is to be tested and inspected in the presence of the Society's Surveyor in accordance with the requirements of this chapter and are to comply with the requirements for the tests and inspections.
2. Where equipment having characteristics differing from those described in this chapter are to be test- ed and inspected according to the approved specification other testing.
3. The tests and inspections for equipment may be dispensed with when they have appropriate certifi- cates accepted by the Society.
105. Execution of tests and inspections
1. The manufacturers shall provide the Surveyor with all necessary facilities and access the parts of the works necessary to verify that the approved process is adhered to.
2. All tests and inspections of equipment are to be carried out at the manufacturing site prior to delivery.
106. Marking of accepted equipment
Equipment which satisfactorily complies with the requirements in this chapter are to be stamped in accordance with the provisions in each section.
Pt 4 Hull Equipment
Ch 3 Equipment Number and Equipment Pt 4, Ch 3
107. Towing
1. Towing arrangements shall enable the craft to be towed in worst conditions.
2. The design towing force is given by the following formula :
N
: towing horsepower at n knots (nmin = 5Kn, nmax = 10Kn)
3. Stresses for towing bollards are normally to give equivalent stress not exceeding 160/
N mm . The equivalent stress, for bollards in combined bending and shear may be taken
N mm
: bending stress (N mm
: ). shear stress (N mm
).
4. The towing arrangements and all bollards, eyebolts, fair leads and bitts should be constructed and attached to the hull that in the event of their damage, the watertight integrity of the craft is not impaired.