Section 2 Performance requirements
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Naval Ships, January 2023 - Volume 2 Machinery and Engineering Systems - Part 9 Electrotechnical Systems - Chapter 5 Hazardous Areas - Section 2 Performance requirements

Section 2 Performance requirements

Parent topic: Chapter 5 Hazardous Areas

2.1 Performance requirements

2.1.1 In order to facilitate the proper selection and installation of equipment to be used safely in areas where explosive gas or dust atmospheres may occur, such dangerous or hazardous areas are to be identified in accordance with an acceptable National or International Standard.

2.1.2 Hazardous areas shall be divided into zones in accordance with a National or International Standard agreed by the Naval Administration.

2.1.3 Electrical equipment or wiring shall not be installed in hazardous areas unless essential for operational purposes or safety enhancement.

2.1.4 Where electrical or mechanical equipment is installed in hazardous areas, it shall be of a type suitable for the environment in which it will be operated. Equipment shall be selected, installed and maintained in accordance with National or International Standards. Equipment for hazardous areas shall be evaluated and certified by an accredited testing authority or notified body recognised by the Naval Administration.

2.1.5 Where machinery is operated in a potentially flammable atmosphere, a means is to be provided to detect any abnormal parameters which may lead to ignition of the atmosphere.

2.1.6 Any failure that can change the categorisation of a hazardous area shall be indicated by an alert.

2.1.7 The integrity of the boundary of the hazardous area shall be such as not to compromise the safety of the adjacent space.

2.1.8 Suitable indication of the nature of the potential hazards shall be provided at the entrance(s) to the space, and on the equipment where applicable.

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