Section 1 General
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Inland Waterways Ships, July 2022 - Part 5 Main and Auxiliary Machinery - Chapter 1 General Requirements for the Design and Construction of Machinery - Section 1 General

Section 1 General

Parent topic: Chapter 1 General Requirements for the Design and Construction of Machinery

1.1 Machinery to be constructed under survey

1.1.1 In ships built under Special Survey, all important units of equipment are to be surveyed at the manufacturer’s works. The workmanship is to be to the Surveyor’s satisfaction and the Surveyor is to be satisfied that the components are suitable for the intended purpose and duty. Examples of such units are:

  • Main propulsion engines, including their associated gearing, flexible couplings, scavenge blowers and superchargers.
  • Boilers intended for heating of cargo and/or domestic purposes, having working pressures exceeding 0,34 N/mm2 and having heating surfaces greater than 4,65 m2.
  • Auxiliary engines of 110 kW and over, which are the source of power for services essential for safety or for the operation of the ship.
  • Steering machinery.
  • Athwart ship thrust units and Azimuth thrusters of 110 kW and over, their prime movers and control mechanisms.
  • All heat exchangers necessary for the operation of main propulsion and essential machinery, e.g. air, water and lubricating oil coolers.
  • Air compressors, air receivers and other pressure vessels necessary for the operation of main propulsion and essential machinery.
  • Any other unfired pressure vessels for which plans are required to be submitted as detailed in Pt 5, Ch 9, 1.6 Plans.
  • All pumps essential for safety of the ship, e.g. fire and bilge pumps.
  • Valves and other components intended for the installation in pressure piping systems having working pressures exceeding 7 bar.
  • Alarm and control equipment as detailed in Pt 6, Ch 1 Control Engineering Systems.
  • Electrical equipment as detailed in Pt 6, Ch 2 Electrical Installations.

1.2 Survey for classification

1.2.1 The Surveyor is to examine and test the materials and examine the workmanship from the commencement of work until the final test of the machinery under full working conditions. Any defects, etc. are to be indicated as early as possible. On completion, the Surveyor will submit a report and if this is found to be satisfactory by the Committee, a certificate will be granted, and an appropriate notation assigned in accordance with Pt 1, Ch 2 Classification Regulations.

1.3 Alternative system of inspection

1.3.1 Where items of machinery are manufactured as individual or series produced units, the Committee will be prepared to give consideration to the adoption of a survey procedure based on quality assurance concepts utilizing regular and systematic audits of the approved manufacturing and quality control processes and procedures as an alternative to the direct survey of individual items.

1.3.2 In order to obtain approval, the requirements of Pt 5, Ch 1, 7 Quality Assurance Scheme for Machinery are to be complied with.

1.3.3 Where it is proposed to install engines and gears not surveyed at the manufacturer’s works, but of a recognized and approved standard type, these items are to be tested under full working conditions after fitting on board. Installation of such machinery is to be carried out in accordance with the relevant requirements of the Rules. This survey will entitle the machinery to the special notation in accordance with Pt 1, Ch 2 Classification Regulations.

1.4 Deviations from the Rules

1.4.1 Any proposal to deviate from the requirements of the Rules will be specially considered.

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