Iranian Classification Society Rules

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Unless expressly specified otherwise, the requirements in the Guidance apply to ships for navigation in ice for which contracts for construction are signed on or after 1 January 2015.

CONTENTS


CHAPTER

1

STRENGTHENING FOR NAVIGATION IN ICE 1

Section

1

General 1

Section

2

Ice Strengthening 1

Section

3

Engine Output 3

Section

4

Hull Structural Design 7

Section

5

Rudder and Steering Arrangements 17

Section

6

Propulsion Machinery 18

Section

7

Miscellaneous Machinery Requirements 35


CHAPTER


2

SHIPS FOR NAVIGATION IN POLAR WATERS 37

Section

1

Polar Class Descriptions and Application 37

Section

2

Structural Requirements for Polar Class Ships 39

Section

3

Machinery Requirements for Polar Class Ships 58


CHAPTER


3


SHIPS WITH ICE BREAKING CAPABILITY FOR

NAVIGATION IN POLAR WATERS 69

Section

1

General 69

Section

2

Strengthening of Arc class ships and Icebreakers 71

Section

3

Rudder 106

Section

4

Machinery installations 107

Section

5

Subdivision and Stability 121


CHAPTER


4

WINTERIZATION 125

Section

1

General 125

Section

2

Hull Construction 128

Section

3

Equipment and Systems 128

Section

4

Stability due to Ice Accretion 140

Section

5

Design Appraisal, Installation, Testing and Survey 141


ANNEX 1 Strengthening for navigation in ice 143

ANNEX 2 Load cases for propeller and the shape of the propeller ice torque excitation for the ships strengthened for navigation

in ice and polar class ships 147

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CHAPTER 1 STRENGTHENING FOR NAVIGATION IN ICE