IEC 60092-302:1997 pdf download – Electrical installations in ships -Part 302: Low-voltage switchgear and controlgear assemblies

IEC 60092-302:1997 pdf download – Electrical installations in ships -Part 302: Low-voltage switchgear and controlgear assemblies.
This part of lEG 60092 is applicable to low-voltage switchgear and controlgear assemblies hype-tested assemblies (TTA), partially type-tested assemblies (PTTA) and non type-tested assemblies (NTTA)J. with rated voltages not exceeding 1 000 V a.c. at rated frequencies not exceeding 60 Hz or 1 500 V d.c. for use in ships as a supplement to IEC 60439-1
NOTE — Throughout this standard, the word ASSEMBLY is used for a low-voltage switchgear and controlgear assembly.
This standard also applies to ASSEMBLIES incorporating control andlor power equipment, which operate at higher frequencies. In this case, appropriate additional requirements apply.
Unless otherwise specified in the following clauses, all ASSEMBLIES and their components comply with lEG 60439-1. In case of doubt, lEG 60092 publications shall have preference over lEG 60439-1.
1.2 Normative references
Addition
IEC 60092-101: 1994, Electrical installations in ships — Part 101: Definitions and general requirements
IEC 60092-202: 1994, Electrical installations in ships — Part 202: System design — Protection
IEC 60092-504: 1994, Electrical installations in ships — Part 504: Special features — Control and instrumentation
lEG 60185: 1987, Current transformers
IEC 60363: 1972, Short-circuit current evaluation with special regard to rated short—circuit capacity of circuit-breakers in installations in ships
I EC 60865-1: 1993, Short-circuit currents — Calculation of effects — Part 1: Definitions and calculation methods
2 Definitions
2.1 General
Addition
For the purpose of this part of IEC 60092. the general terms given in IEC 60050(441) and lEG 60439-1, as well as the following definitions apply.
2.1.1 low-voltage swltchgear and controlgear assembly (ASSEMBLY); A combination of one or more low-voltage switching devices together with associated control, measuring, signalling, protective, regulating equipment, etc., completely assembled under the responsibility of the manufacturer with all the internal electrical and mechanical interconnections and structural parts.
2.1.1.1 type-tested low-voltage switchgear and controlgear assembly (TTA): A low-
voltage switchgear and controlgear assembly conforming to an established type or system without deviations likely to significantly influence the performance from the typical ASSEMBLY verified to be in accordance with this standard.
2.1.1.2 partially type-tested low-voltage switchgear and controlgear assembly (PTTA): A low-voltage switch9ear and controlgear assembly. containing both type-tested and non type- tested arrangements provided that the latter are derived (e.g. by calculation) from type-tested arrangements which have complied with the relevant tests.
2.1.1.101 non type-tested low-voltage switchgear and controlgear assembly (NTTA): A low-voltage switchgear and controlgear assembly, which does not belong to 2.1.1.1 or 21.1.2.
2.1.101 maIn swItchboard: A switchgear and controlgear assembly which is directly supplied by the main source of electrical power and is intended to distribute and control electrical energy to the ship’s services.
2.1.102 emergency swItchboard: A switchgear and controlgear assembly which is normally supplied by the main switchboard but in the event of failure of the main electrical power supply system is directly supplied by the emergency source of electrical power or the transitional source of emergency power and is intended to distribute and control electrical energy to the emergency services.
2.1.103 section board: A switchgear and controlgear assembly for controlling and distributing the supply of electrical power to other section boards, distribution boards or final sub-circuits.
2.1.104 distribution board: A switchgear and controlgear assembly for the control and distribution of electrical power to final sub-circuits.
5 Information to be given regarding the ASSEMBLY
In addition to the information required by clause 5 of lEG 60439-1 the following subclauses
shall apply:
5.1 Nameplates
Replacement
C) lEC 60092-302.