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12/30260078 DC BS EN 60092-502. Electrical installations in ships. Part 502. Tankers. Special features, 2012
- 18_1253e_CD.pdf [Go to Page]
- 1253 annex.pdf [Go to Page]
- 1 Scope
- 2 Normative references
- 3 Definitions
- 4 Area classification [Go to Page]
- 4.1 General [Go to Page]
- 4.1.1 Basic principles
- 4.1.2 Substances capable of creating an explosive gas atmosphere
- 4.1.3 Sources of release
- 4.1.4 Separation by gastight boundaries
- 4.1.5 Openings, access and ventilation conditions affecting the extent of hazardous area
- 4.2 Tankers carrying flammable liquids other than liquefied gases having a flashpoint not exceeding 60 °C, for example crude oil, oil products, chemical products [Go to Page]
- 4.2.1 General
- 4.2.2 Hazardous areas zone 0
- 4.2.3 Hazardous areas zone 1
- 4.2.4 Hazardous areas zone 2
- 4.3 Tankers carrying flammable liquids having a flashpoint exceeding 60 °C [Go to Page]
- 4.3.1 Unheated cargoes and cargoes heated to temperature (TH) below, and not within 10 °C, of their flashpoint (FP) [Go to Page]
- 4.3.1.1 General
- 4.3.1.2 Hazardous areas zone 2
- 4.3.2 Cargoes heated to temperature (TH) above their flashpoint (FP) and cargoes heated to temperature within 10 °C of their flashpoint: TH FP –10 °C
- 4.4 Tankers carrying flammable liquefied gases [Go to Page]
- 4.4.1 General
- 4.4.2 Hazardous areas zone 0
- 4.4.3 Hazardous areas zone 1
- 4.4.4 Hazardous areas zone 2
- 4.5 Tankers carrying cargoes (for example acids) reacting with otherproducts/materials to evolve flammable gases [Go to Page]
- 4.5.1 General
- 4.5.2 Hazardous areas zone 1
- 4.5.3 Hazardous areas zone 2
- 5 Electrical systems [Go to Page]
- 5.1 Sources of electrical power
- 5.2 Distribution systems
- 5.3 Electrical protection
- 5.4 Equipotential bonding
- 5.5 Static electricity
- 5.6 Lightning protection
- 5.7 Cathodically protected metallic parts
- 5.8 Electromagnetic radiation
- 6 Electrical equipment [Go to Page]
- 6.1 General
- 6.2 Selection of electrical equipment [Go to Page]
- 6.2.1 General
- 6.2.2 Area classification
- 6.2.3 Location on the ship
- 6.2.4 Selection with respect to ignition temperature of the gas or vapour
- 6.2.5 Selection with respect to the classification of gas or vapour
- 6.2.6 External influences
- 6.2.7 Ambient temperature
- 6.3 Certified safe type equipment
- 6.4 Electrical equipment of the type “n” and that which ensures the absence of sparks and arcs and of “hot spots” during its normal operation
- 6.5 Electrical equipment in hazardous areas
- 6.6 Movable and hand held equipment
- 7 Installation [Go to Page]
- 7.1 General
- 7.2 Selection of apparatus
- 7.3 Wiring system – general
- 7.4 Cable wiring systems
- 7.5 Connection of cables
- 7.6 Cable joints
- 8 Ventilation and pressurisation [Go to Page]
- 8.1 General
- 8.2 Ventilation conditions [Go to Page]
- 8.2.1 General
- 8.2.2 Natural ventilation
- 8.2.3 Artificial ventilation
- 8.2.4 Pressurisation by means of artificial ventilation
- 8.2.5 No ventilation
- 8.3 Ventilation for personnel protection
- 8.4 Opening between spaces
- 8.5 Other spaces
- 8.6 Design principles
- 8.7 Ventilation related to area classification
- 8.8 Protection by over-pressure
- 9 Inspection and maintenance [Go to Page]
- 9.1 General
- 9.2 Inspection and testing
- 9.3 Isolation of apparatus
- 9.4 Maintenance
- 9.5 Qualifications of personnel
- 10 Documentation [Go to Page]
- 10.1 Area classification
- 10.2 Equipment
- 10.3 Installation
- 10.4 Maintenance
- 10.5 Administration of the documentation
- Annex A (informative)Examples of hazardous area classification –Basic principles
- Annex B (informative)Examples of hazardous area classification –Tankers carrying flammable liquids other than liquefied gaseshaving a flashpoint not exceeding 60 °C, for example,crude oil, oil products, chemical products
- Annex C (informative)Examples of hazardous area classification –Tankers carrying flammable liquids having a flashpoint exceeding 60 °C –Unheated cargoes and cargoes heated to temperature (TH) below, and not within 10 °C, of their flashpoint (FP): TH < FP –10 °C
- Annex D (informative)Examples of hazardous area classification –Tankers carrying flammable liquefied gases
- Annex E (informative)Examples of hazardous area classification –Tankers carrying cargoes (for example acids) reacting with other products/materials to evolve flammable gases
- Bibliography [Go to Page]
