Section 2 Information to be submitted
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Linkspans, July 2022 - Part 4 Engineering Systems - Chapter 1 General Requirements for the Design and Construction of Engineering Systems - Section 2 Information to be submitted

Section 2 Information to be submitted

2.1 General

2.1.1 Before work is commenced, plans in triplicate of the information listed in Pt 4, Ch 1, 2.2 Control and safety systems, Pt 4, Ch 1, 2.3 Electrical systems, Pt 4, Ch 1, 2.4 Piping systems, Pt 4, Ch 1, 2.5 Pressure vessels are to be submitted to LR for approval.

2.2 Control and safety systems

2.2.1 Details of the following control systems and safeguards:

  1. Description of operation with explanatory diagrams as appropriate.

  2. Schematic diagrams of control circuits.

  3. Environmental specification of items of control and safety equipment.

  4. Test schedules, including methods of test and required test results.

2.2.2 Items of equipment under control including:

  1. Air compressors used in ballasting.

  2. Bilge and ballast pumps.

  3. Hydraulic pumps and motors for positioning.

  4. Electrical motors for positioning.

  5. Auxiliary engines and ancillary systems.

  6. Winches.

  7. Hydraulic actuators.

  8. Remotely or automatically controlled doors, gates or lifting equipment.

  9. Other automatic or remote means of positioning.

2.3 Electrical systems

2.3.1 Single line diagram of power and lighting systems which is to include:

  1. ratings of machines, transformers, batteries and semi-conductor converters,

  2. all feeders connected to the switchboards,

  3. section boards and distribution boards,

  4. insulation type, size and current loadings of cables,

  5. make, type and rating of circuit breakers and fuses.

2.3.2 Simplified diagrams of generator circuits, if fitted, interconnector circuits and feeder circuits showing:

  1. protective devices, e.g. short circuit, overload, reverse power protection,

  2. instrumentation and synchronizing devices,

  3. preference tripping,

  4. remote stops,

  5. earth fault indication/protection.

2.3.3 Calculations of short circuit currents at switchboards and section boards including those fed from transformers, details of circuit breaker and fuse operating times and discrimination curves.

2.3.4 Schedule of normal and emergency loads on the system estimated for the different conditions expected.

2.4 Piping systems

2.4.1 Venting, sounding and drainage arrangements for all spaces.

2.4.2 The following diagrammatic plans including details of the material and pipe dimensions/thickness:

  1. Bilge and ballast system including the capacities of the pumps on bilge service.

  2. Hydraulic oil and other flammable liquid systems.

  3. Compressed air systems.

  4. Any other system installed which is necessary for the operation of the facility.

2.4.3 Where it is intended to use plastic pipes for Class I, Class II and any Class III systems for which there are requirements in these Rules, details of the following:

  1. Properties of the materials.

  2. Operating conditions.

  3. Intended service and location.

  4. Pipes, fittings and joints.

2.4.4 Design details of the following components:

  1. Flexible hoses.

  2. Sounding devices.

  3. Resiliently seated valves.

  4. Expansion joints.

2.5 Pressure vessels

2.5.1 Plans of pressure vessels where the conditions detailed in Pt 4, Ch 4, 2.1 Design 2.1.1 apply.

2.5.2 Plans of full constructional features of the vessel and dimensional details of the weld preparations for longitudinal and circumferential seams and attachments, together with particulars of the welding consumables and of the mechanical properties of the materials, are to be submitted before construction is commenced.


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