10.1 Definitions
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.370(93) – Amendments to The International Code for The Construction and Equipment of Ships Carrying Liquefied Gases In Bulk (IGC Code) – (Adopted on 22 May 2014) - Annex - Amendments to The International Code for The Construction and Equipment of Ships Carrying Liquefied Gases In Bulk (IGC Code) - Chapter 10 — Electrical Installations - 10.1 Definitions

10.1 Definitions

 For the purpose of this chapter, unless expressly provided otherwise, the definitions below shall apply.

  10.1.1 Hazardous area is an area in which an explosive gas atmosphere is or may be expected to be present, in quantities such as to require special precautions for the construction, installation and use of electrical apparatusfootnote.

  10.1.1.1 Zone 0 hazardous area is an area in which an explosive gas atmosphere is present continuously or is present for long periods.

  10.1.1.2 Zone 1 hazardous area is an area in which an explosive gas atmosphere is likely to occur in normal operation.

  10.1.1.3 Zone 2 hazardous area is an area in which an explosive gas atmosphere is not likely to occur in normal operation and, if it does occur, is likely to do so infrequently and for a short period only.

  10.1.2 Non-hazardous area is an area in which an explosive gas atmosphere is not expected to be present in quantities such as to require special precautions for the construction, installation and use of electrical apparatus.


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