ELECTRICAL INSTALLATIONS IN SHIPS - PART 503: SPECIAL FEATURES - A.C. SUPPLY SYSTEMS WITH VOLTAGES IN THE RANGE OF ABOVE 1 KV UP TO AND INCLUDING 15 KV
International Electrotechnical Committee
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
3.1 AC voltages
3.2 Earthed neutral systems
3.3 Insulation
4 General requirements
4.1 Voltage and frequency
4.2 Warning notices
4.3 Access
4.4 Insulation level
4.5 Clearances and creepage distances
4.5.1 Clearance distance
4.5.2 Creepage distance
4.6 Earthing
4.7 Distribution systems
4.7.1 Divided system
4.7.2 Auxiliary circuits
4.7.3 Busbars of main switchboards
4.7.4 Generator circuits
4.7.5 Outgoing circuits
4.7.6 Power-transformer circuits
4.7.7 Shore-connection circuits and circuits to
other units
4.7.8 Control and instrumentation circuits
4.8 Generator and transformer neutrals
4.8.1 Generator neutrals interconnected
4.8.2 Disconnection
4.9 Electrical protection
4.9.1 General
4.9.2 Generator protection
4.9.3 Motor protection
4.9.4 Power-transformer protection
4.9.5 Voltage-transformer protection
4.9.6 Overvoltage protection
4.9.7 Earth-fault monitoring
5 Equipment
5.1 AC generators and motors
5.1.1 Enclosures
5.1.2 Performance
5.1.3 De-excitation
5.1.4 Mechanical characteristics
5.2 Transformers
5.2.1 Enclosures and installations
5.2.2 Accumulation of moisture and condensation
5.2.3 Transient voltage conditions
5.2.4 Current inrush
5.3 Switchgear and controlgear assemblies (switchboards)
5.3.1 Design and construction
5.3.2 Passageways
5.4 Switchgear and controlgear and fuses
5.5 Cables
5.5.1 General
5.5.2 Installation
5.5.3 Conductors and terminations
5.5.4 Current rating
5.5.5 Testing
5.5.6 Socket-outlets
Applies to a.c. supply systems with voltages from 1 kV up to and including 15 kV.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 18 |
