GB 1984-2014
High-voltage alternating-current circuit-breakers (English Version)

Standard No.

GB 1984-2014

Language

Chinese, Available in English version

Release Date

2014

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB 1984-2014

Replace

GB 1984-2003

Scope

This standard applies to AC circuit breakers designed to be installed indoors or outdoors and operating in systems with a frequency of 50 Hz and a voltage of 3 000 V and above. This standard applies only to three-pole circuit breakers in three-phase systems and single-pole circuit breakers in single-phase systems. Two-pole circuit breakers used in single-phase systems and for frequencies below 50 Hz shall be subject to agreement between the manufacturer and the user. This standard also applies to the operating mechanism of the circuit breaker and its auxiliary equipment. However, this standard does not relate to circuit breakers that rely solely on manual operation of the closing mechanism, because it cannot specify the rated short-circuit making current, and from a safety point of view, this method of manual operation alone should not be advocated. See GB/T 30846-2014 for circuit breakers with predetermined inter-pole asynchrony; circuit breakers with single-pole automatic reclosing function are included in the scope of this standard. This standard does not deal with circuit breakers in mobile power stations for electric traction equipment, which are included in IEC 60077 [1] ¹⁾. Generator circuit breakers installed between the generator and the step-up transformer are also excluded from the scope of this standard. Inductive load switching is included in GB/T 29489-2013. Refer to this standard for self-tripping circuit breakers with mechanical tripping devices or devices that cannot be disabled. Circuit breakers used as bypass switches in parallel with line series capacitors and their protective devices are not included in the scope of this standard. They are included in GB/T 28565-2012 and IEC 60143-2 [3].

GB 1984-2014 Referenced Document

• GB 1985-2004 High-voltage alternating-current disconnectors and earthing switches
• GB 2536-2011 Fluids for electrotechnical applications.Unused mineral insulating oils for transformers and switchgear
• GB 4208-2008 Degrees of protection provided by enclosure(IP code)
• GB 7674-2008 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5kV and above
• GB/T 11022-2011 Common specifications for high-voltage switchgear and controlgear standards
• GB/T 12022-2006 Sulphur hexafluoride for industrial use
• GB/T 14598.7-1995 Electrical relays. Part 3: Single input energizing quantity measuring relays with dependent or independent time
• GB/T 16927.1-2011 High-voltage test techniques.Part 1:General definitions and test requirements
• GB/T 2 Fasteners.Ends of parts with external thread*， 2016-02-24 Update
• GB/T 2900.20-1994 Electrotechnical terminology.High-voltage switchgear
• GB/T 2900.50-2008 Electrotechnical terminology.Generation,transmission and distribution of electricity.General
• GB/T 2900.57-2008 Electrotechnical terminology.Generation,transmission and distribution of electricity.Operation
• GB/T 311.2-2013 Insulation co-ordination.Part 2:Application guide
• GB/T 4109-2008 Insulated bushings for alternating voltages above 1000V
• GB/T 4473-2008 Synthetic testing of High-voltage alternating current circuit-breakers
• GB/T 762-2002 Standard current ratings
• GB/T 8905-2012 The guide for management and measuring SF<下标6> gas in electrical equipment

GB 1984-2014 history

• 2014 GB 1984-2014 High-voltage alternating-current circuit-breakers
• 2003 GB 1984-2003 High-voltage alternating-current circuit-breakers
• 1987 GB/T 7675-1987 The capacitor banks switching tests for A.C. high-voltage circuit-breaker