Section 11 Electrical equipment for the process plant
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Ships, July 2022 - Part 7 Other Ship Types and Systems - Chapter 2 Ships with Installed Process Plant for Chemicals, Liquified Gases and Related Products - Section 11 Electrical equipment for the process plant

Section 11 Electrical equipment for the process plant

Parent topic: Chapter 2 Ships with Installed Process Plant for Chemicals, Liquified Gases and Related Products

11.1 Design of installation

11.1.1 Installations are to be designed in accordance with Pt 6, Ch 2 Electrical Engineering, or with a recognised National or International Standard or Code of Practice.

11.1.2 Attention must be given to any relevant statutory regulations of the National Authority of the country in which the ship is to be registered or in which the process plant is to be operated.

11.2 Equipment suitability for environment

11.2.1 Electrical equipment is to be constructed so that it is suitable for use in the environmental conditions envisaged, e.g. in areas of high ambient temperature, derating may be necessary.

11.3 Hazardous zones

11.3.1 Where flammable gases and vapours are involved, the defining of hazardous zones is to be in accordance with a National or International Standard or Code of Practice.

11.4 Certified safe-type equipment

11.4.1 Where safe-type equipment is permitted in hazardous zones, e.g.:

  • Intrinsically-safe (symbol i),
  • Flameproof (symbol d),
  • Increased safety (symbol e),
  • Pressurised enclosure (symbol p),

such equipment is to be certified for the gases and vapours involved. The construction and type testing are to be in accordance with IEC 60079: Electrical Apparatus for Explosive Gas Atmospheres, or an equivalent National Standard.

11.5 Survey and testing

11.5.1 All electrical equipment is to be installed and tested to the Surveyor's satisfaction.

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