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IEC 60092-502 : 5.0

ELECTRICAL INSTALLATIONS IN SHIPS - PART 502: TANKERS - SPECIAL FEATURES

International Electrotechnical Committee

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Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope<br>2 Normative references<br>3 Definitions<br>4 Area classification<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.2 Tankers carrying flammable liquids other than<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;liquefied gases having a flashpoint not <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;exceeding 60 degree C, for example crude oil, <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;oil products, chemical products<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.3 Tankers carrying flammable liquids having a <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;flashpoint exceeding 60 degree C<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.4 Tankers carrying flammable liquefied gases<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.5 Tankers carrying cargoes (for example acids) <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;reacting with other products/materials to <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;evolve flammable gases<br>5 Electrical systems<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.1 Sources of electrical power<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.2 Distribution systems<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3 Electrical protection<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.4 Equipotential bonding<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.5 Static electricity<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.6 Lightning protection<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.7 Cathodically protected metallic parts<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.8 Electromagnetic radiation<br>6 Electrical equipment<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.2 Selection of electrical equipment<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.3 Certified safe type equipment<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.4 Electrical equipment of the type 'n' and that <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;which ensures the absence of sparks and arcs <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;and of 'hot spots' during its normal operation<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.5 Electrical equipment in hazardous areas<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.6 Movable equipment<br>7 Installation<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2 Selection of apparatus<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.3 Wiring system - general<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.4 Cable wiring systems<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.5 Connection of cables<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.6 Cable joints<br>8 Ventilation and pressurisation<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.2 Design principle<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.3 Ventilation related to area classification<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.4 Protection by over-pressure<br>9 Inspection and maintenance<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9.2 Inspection and testing<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9.3 Isolation of apparatus<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9.4 Maintenance<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9.5 Qualifications of personnel<br>10 Documentation<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.1 Area classification<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.2 Equipment<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.3 Installation<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.4 Maintenance<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.5 Administration of the documentation<br>Annex A (informative) Examples of hazardous area <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;classification - Basic principles<br>Annex B (informative) Examples of hazardous area <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;classification - Tankers carrying <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;flammable liquids other than liquefied<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;gases having a flashpoint not <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;exceeding 60 degree C for example, <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;crude oil, oil products, chemical <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;products<br>Annex C (informative) Examples of hazardous area <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;classification - Tankers carrying <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;flammable liquids having a flashpoint<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;exceeding 60 degree C - Unheated <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cargoes and cargoes heated to <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;temperature (TH) below, and not within<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;15 degree C of, their flashpoint (FP)<br>Annex D (informative) Examples of hazardous area <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;classification - Tankers carrying <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;flammable liquefied gases<br>Annex E (informative) Examples of hazardous area <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;classification - Tanker carrying <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cargoes (for example acids) reacting <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;with other products/materials to <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;evolve flammable gases

Abstract

Deals with the electrical installations in tankers carrying liquids which are flammable, either inherently, or due to their reaction with other substances, or flammable liquefied gases.

General Product Information

Document Type Standard
Status Current
Publisher International Electrotechnical Committee
Committee TC 18