IEC 60298:1990

Section one - General
1 Scope
Section two - Service conditions
2 Normal and special service conditions
Section three - Terms and definitions
3 Definitions
Section four - Rated characteristics
4 Rating
4.1 Rated voltage
4.2 Rated insulation level
4.3 Rated frequency
4.4 Rated normal current and temperature rise
4.5 Rated short-time withstand current
4.6 Rated peak withstand current
4.7 Rated duration of short circuit
4.8 Rated supply voltage of closing and opening devices and
       auxiliary circuits
4.9 Rated supply frequency of operating devices and
       auxiliary circuits
4.10 Rated pressure of compressed gas supply for operation
4.101 Rated filling pressure (of gas-filled compartments)
Section five - Rules for design and construction
5 Design and construction
5.1 Requirements for liquids in switchgear and controlgear
5.2 Requirements for gases in switchgear and controlgear
5.3 Earthing
5.4 Auxiliary equipment
5.5 Dependent power closing
5.6 Stored energy closing
5.7 Operating of releases
5.8 Low and high pressure interlocking devices
5.9 Nameplates
5.101 Degree of protection and internal fault
5.102 Enclosure
5.103 Partitions and shutters
5.104 Pressure relief of gas-filled compartments
5.105 Disconnectors and earthing switches
5.106 Interlocks
5.107 Provisions for dielectric tests on cables
Section six - Rules for type tests
6 Type tests
6.1 Dielectric tests
6.2 Radio interference voltage (RIV) tests
6.3 Temperature-rise tests
6.4 Measurement of the resistance of the main circuit
6.5 Short-time and peak withstand current tests
6.101 Verification of making and breaking capacities
6.102 Mechanical operation tests
6.103 Verification of the IP-coding
6.104 Pressure withstand test for gas-filled compartments
6.105 Gas tightness tests of gas-filled compartments
6.106 Measurement of leakage currents
6.107 Weatherproofing test
6.108 Arcing due to internal fault
6.109 Mechanical impact tests
Section seven - Rules for routine tests
7 Routine tests
7.1 Power-frequency voltage tests on the main circuit
7.2 Dielectric tests on auxiliary and control circuits
7.3 Measurement of the resistance of the main circuit
7.101 Partial discharge measurement
7.102 Mechanical operation tests
7.103 Pressure tests of gas-filled compartments
7.104 Gas tightness tests of gas-filled compartments
7.105 Tests of auxiliary electrical, pneumatic and hydraulic
       devices
7.106 Verification of correct wiring
7.107 Tests after erection on site
7.108 Measurement of gas condition after filling on site
Section eight - General information
8 Guide to the selection of switching devices for service
9 Information to be given with enquiries, tenders for
       service
9.101 Information with enquiries and orders
9.102 Information with tenders
10 Rules for transport, storage, erection and maintenance
10.1 Conditions during transport, storage and erection
10.2 Erection (mounting)
10.3 Maintenance
Figure
1 Standard test finger
Annexes
AA (normative) Internal fault
BB (normative) Method for calculating the cross-sectional
       area of bare conductors with regard to thermal stresses
       due to currents of short duration
CC Deleted
DD (normative) Guide to voltage tests after erection on
       site
EE (normative) Rated insulation level for Series II
FF (normative) Partial discharge measurement
GG Gas tightness specifications and tests

This publication completes IEC 60694 as regards a.c. metal-enclosed switchgear and controlgear and applies also to gas-filled compartments used in metal-enclosed switchgear and controlgear. Defines service conditions, applicable terms and rated characteristics. Specifies rules for design and construction and rules for type tests and routine tests. Also provides general information on the selection of devices, tenders, transport, erection and maintenance, etc.The contents of the corrigenda of April 1995 and May 1998 have been included in this copy.