Section 3 Plans and information to be submitted

3.1.1 The following plans and information are to be submitted for approval:

1. A rigging plan clearly indicating the layout of the swinging derricks, heavy lifts derricks or union purchase systems and the position of the individual items of loose gear.

2. A diagram of forces for each derrick rig and, in the case of union purchase working, the working range and data specified in Ch 2 Derrick Systems.

3. Scantling plans of masts and derrick posts and stays where fitted. (Note that these are classification items where the ship is classed with LR.)

4. Scantling plans of derrick booms including head and heel fittings.

5. Details of goosenecks, span and cargo swivels, guy eyeplates, and similar fittings.

6. A list of blocks, chains, shackles, hooks, etc. indicating material, safe working load (SWL), proof load (PL) and the standard to which they have been manufactured.

7. A list of steel wire and fibre ropes giving size, construction, finish and certified breaking loads.

8. The material specification for steels to be used in the masts, derrick booms and associated fittings.

3.2.1 The following scantling plans are to be submitted for examination:

1. A general arrangement.

2. A reeving arrangement.

3. Davit arm structural drawings.

4. Details of hydraulic cylinders.

5. Trackway, stool or ‘A’ frame structural drawings.

6. Heel or rollerpin details (as applicable).

7. Winch drawings including details of gears, brakes, clutches, other torque transmitting components and support arrangements.

8. Loose gear details, including all sheaves and shafts.

9. Material specifications.

10. Designer’s calculations.

3.2.2 In addition, each submission for approval is to state clearly the:

1. Weight of the empty lifeboat/rescue boat and equipment;

2. Weight of survival craft/rescue boat with full complement of passengers and equipment;

3. Longitudinal centre of gravity of each lifeboat/rescue boat;

4. Weight and centre of gravity of each davit arm;

5. Final angle of list in damaged condition (only if exceeding 20°, see Ch 3, 1.2 Survival craft davits 1.2.15);

6. Embarkation position (applied only to passenger ships);

7. Hoisting and lowering speeds;

8. Maximum outreach of davit from ship’s side;

9. Ship’s Flag Administration.

3.3.1 The following plans and calculations are to be submitted for approval:

1. Calculations (or equivalent) clearly indicating the basis of design, operating criteria, rated capacities, weights and centres of gravity of the crane parts, and relevant National Standards.

2. Scantling plans of all main structural items comprising the crane, including the jib, tower, platform, gantry, bogies, slewing ring, pedestals, rails and stowage arrangements.

   Note Pedestals and rails permanently attached to the vessel are classification items where the ship is classed with LR.

3. Scanting plans and details of hydraulic cylinders.

4. Details of sheaves, axles, pivot pins, wheels, slewing ring, slewing ring bolts, and similar items.

5. Details of blocks, chains, shackles, hooks, spreader beams and other loose gear, indicating material, safe working load (SWL), proof loads (PL) and the standard to which they have been manufactured.

6. The size, construction, finish and certified breaking loads of steel wire ropes.

7. The material specification for steels to be used in the crane and pedestal construction.

3.3.2 In the case of diving systems covered by this Section, additional information is to be submitted with respect to approval of the winches and electrical and control systems. This information is detailed in LR’s Rules and Regulations for the Construction and Classification of Submersibles and Diving Systems (hereinafter referred to as Rules for Submersibles), see also Ch 9 Machinery and Ch 10 Electrotechnical Systems.

3.3.3 Plans as listed in Ch 1, 3.7 Mechanical, electrical and control aspects are to be submitted for classed cranes/systems.

3.4.1  Structural aspects. The following plans are to be submitted for approval:

1. Structural plans of the platform.

2. Structural plans of the transfer system if it is required that this is to be included in the certification or class of the installation.

3. Upper and lower sheave housings.

4. Winch bedplate.

5. Rope or chain specification.

6. The material specification for steels used in the construction.

3.4.2 In addition, the following plans and information are required for reference purposes:

1. Calculations clearly indicating the basis of design, nominal lifting capacity, maximum distributed load weights and centres of gravity of the component parts and any other relevant design criteria.

2. Platform assembly.

3. Arrangement of decking.

4. Rail arrangement and details.

5. Hoist and rigging arrangements.

6. Cradle and block arrangements.

7. Welding specifications.

3.4.3  Mechanical, electrical and control aspects. The plans as listed in Ch 1, 3.7 Mechanical, electrical and control aspects are to be submitted for approval, see also Ch 9 Machinery and Ch 10 Electrotechnical Systems.

3.5.1 The following plans are to be submitted for approval:

1. All main structural plans.

2. Details of sheaves and sheave supports.

3. Calculations clearly indicating the ratings, vehicle loads, wheel centres, tyre prints, working range and angles, design specification, weights and centres of gravity of the component parts.

4. Particulars of hydraulic rams and operating system, if fitted.

5. Reeving arrangements.

6. The size, construction, finish and certified breaking loads of ropes and chains.

7. The material specification for steels to be used in the construction.

8. Stowage arrangements.

3.5.2 In addition to the foregoing, the following information is required with respect to lifts:

1. Typical layout including car construction and guide rail details.

2. Typical entrances.

3. Loading door fire test certificate.

4. Works test certificates for motors.

5. Typical wiring and explanatory diagrams including safety devices.

3.6.1 Fully detailed and dimensioned engineering drawings are to be submitted for appraisal, indicating the length, thicknesses, diameters and material specifications of the main elements, including cylinder tube, piston, piston rod, end caps and eye plates, glands, welding, bolting, etc. Additionally, a copy of the designer’s calculations (stress and buckling) are also required.

3.6.2 Details of the maximum working, design and test pressures are to be submitted. The maximum push and/or pull forces for which the cylinder has been designed are to be indicated.

3.6.3 A performance curve indicating the maximum permitted push load versus the associated piston rod extension is to be supplied by the manufacturer.

3.6.4 Plans of the hydraulic cylinder are to be submitted together with plans of the lifting or life-saving appliance to which it will be fitted. However, where this is not practicable, details of the appliance to which the hydraulic cylinder will be fitted are to be submitted including the anticipated operating and interface conditions, e.g. dynamic axial forces, type of the appliance, etc.

3.7.1 The following plans are to be submitted for approval, see also Ch 9 Machinery and Ch 10 Electrotechnical Systems.

1. Diagrammatic plan of hydraulic or pneumatic systems, where fitted.

2. Plans of winch gearing, shafts, clutches, brakes, coupling bolts, welded drums, and similar items and their materials and stresses.

3. Plans of circuit diagram of electrical system, showing load currents and ratings of all electrical equipment, types and sizes of cables, rating type and make of all protecting devices.

4. Arrangement plan and circuit diagram of switchboard.

5. General arrangement of control centre.

6. Schematic diagrams of control panels.

7. Details of alarms and protection circuits.

3.7.2 In addition, the following information is required for reference purposes: calculations of short-circuit currents and main busbars, sub-switchboard busbars and the secondary side of transformers.