Iranian Classification Society Rules

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Offshore

CONTENTS


CHAPTER

1

GENERAL 1

Section

1

General 1

Section

2

Definitions 3

CHAPTER

2

CLASSIFICATION AND SURVEYS 7

Section

1

General 7

Section

2

Classification 7

Section

3

Surveys 11

CHAPTER

3

CONSTRUCTION, STRENGTH AND MATERIALS 21

Section

1

General 21

Section

2

Access 21

Section

3

Design Loads 22

Section

4

Calculation of Strength 24

Section

5

Surface Type Units 32

Section

6

Self-elevating Units 33

Section

7

Column-stabilized Units 35

Section

8

Towing Arrangements 37

Section

9

Fatigue Analysis 37

Section

10

Materials 38

Section

11

Anti-fouling Systems 40

Section

12

Protective Coatings of Dedicated Seawater Ballast Tanks 40

Section

13

Construction Portfolio 40

Section

14

Welding 41

Section

15

Drainage and Sediment Control 41

Section

16

Ice Strengthening 41

Section

17

Corrosion Control 42

Section

18

Guardrails and Bulwarks 42

Section

19

Temporary or Emergency Mooring Equipment 42

CHAPTER

4

SUBDIVISION, STABILITY AND FREEBOARD 45

Section

1

Inclining Test 45

Section

2

Righting Moment and Heeling Moment Curves 45

Section

3

Intact Stability Criteria 47

Section

4

Subdivision and Damage Stability 49

Section

5

Extent of Damage 51

Section

6

Watertight Integrity 52

Section

7

Freeboard 55

CHAPTER

5

MACHINERY INSTALLATIONS OF ALL TYPES OF UNITS 59

Section

1

General 59

Section

2

Machinery Installations 61

CHAPTER

6

ELECTRICAL INSTALLATIONS FOR ALL TYPES OF UNITS 71

Section

1

General 71

Section 2

Section 3

Electrical Installations 72

Alarms and Internal Communication 78

CHAPTER 7 MACHINERY AND ELECTRICAL INSTALLATIONS IN

HAZARDOUS AREAS 81


Section 1

Section 2

Section 3

Section 4

Section 5

Section 6

General 81

Extent of Hazardous Area 81

Ventilation 83

Emergency Shutdown for Electrical Equipment 84

Electrical Installations in Hazardous Areas 84

Machinery Installations in Hazardous Areas 87

CHAPTER 8 MACHINERY AND ELECTRICAL INSTALLATIONS FOR

SELF-PROPELLED UNITS 89

Section 1

Section 2

Section 3

Section 4

Section 5

Section 6

Section 7

Section 8

General 89

Means of Going Astern 89

Steam Boilers and Boiler Feed Systems 90

Machinery Controls 90

Steering 91

Communication between the Navigating Bridge and the Engine Room 93

Engineers’ Alarm 93

Main Source of Electrical Power 93

CHAPTER 9 PERIODICALLY UNATTENDED MACHINERY SPACES FOR

ALL TYPES OF UNITS 95


Section 1

Section 2

Section 3

Section 4

Section 5

Section 6

Section 7

General 95

Fire Protection and Fire Fighting 95

Protection against Flooding 96

Bridge Control of Propulsion Machinery 97

Communication and Alarm System 97

Special Provisions for Machinery, Boiler and Electrical Installations 98

Safety Systems 98

CHAPTER 10 FIRE PROTECTION, MEANS OF ESCAPE AND

FIRE EXTINCTION 99


Section 1

Section 2

Section 3

Section 4

Section 5

Section 6


CHAPTER 11

Section 1

Section 2

Section 3

Section 4

Section 5

General 99

Fire Protection and Means of Escape 99

Fire Extinction 105

Fire Extinguishing Systems for Helicopter Facilities 111

Gas Cylinders 113

Other Operational Requirements 113

LIFTING DEVICES, PERSONNEL AND PILOT TRANSFER 115

Cranes 115

Lifting and Hoisting Equipment 116

Personnel Lifts 116

Personnel and Pilot Transfer 116

Drilling Derricks 116

CHAPTER 12 HELICOPTER FACILITIES 117

Section 1

Section 2

Section 3

Section 4

Section 5

Section 6

Section 7

General 117

Definitions 117

Construction 117

Arrangements 121

Visual Aids 121

Motion Sensing System 125

Exemptions 126

Ch 1 General Ch 1

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CHAPTER 1 GENERAL