Standards

GB/T 12145-2008 Quality criterion of water and steam for generating unit and steam power equipment

This standard specifies the water and steam quality indicators for thermal power generators and steam power equipment during normal operation and when starting up standby units.
This standard applies to thermal power generators and steam power equipment with a boiler main steam pressure of not less than 3.8 MPa (atmospheric pressure).

Publish Date: 2008-09-24

GB/T 14048.10-2008 Low-voltage switchgear and controlgear—Part 5-2:Control circuit devices and switching element—Proximtiy switches

Publish Date: 2008-09-24

GB/T 14048.11-2008 Low-voltage switchgear and controlgear—Part 6-1:multiple function equipment—Transfer switching equipment

This section applies to transfer switch equipment (TSE) with a rated voltage of no more than 1,000V AC or 1,500V DC. TSE is used to interrupt the power supply to the load in the conversion process.

Publish Date: 2008-09-24

GB/T 14286-2008 Live working—Terminology for tools,equipment and devices

This standard specifies some important terms related to live-line work, which involve the main aspects of live-line work technology.
This standard is applicable to the formulation and revision of live-line work standards and procedures, the compilation and translation of professional literature, teaching materials, and books and periodicals. Other fields related to live-line work technology can also refer to and use it for reference.

Publish Date: 2008-09-24

GB/T 14598.27-2008 Measuring relays and protection equipment—Part 27:Product safety requirements

Publish Date: 2008-09-24

GB/T 14824-2008 High-voltage alternating-current generator circuit-breaker

This standard specifies the operating environmental conditions, terms and definitions, rated values and required capabilities, design and structure, type tests, factory tests, selection guidelines, and on-site acceptance tests for high-voltage AC generators' circuit breakers.
This standard applies to all high-voltage AC generator circuit breakers installed between generators and step-up transformers with a rated voltage of 12 kV to 36 kV and a rated frequency of 50 Hz.
Circuit breakers installed between generators and plant power transformers can also refer to this standard.

Publish Date: 2008-09-24

GB/T 15145-2008 General specification for transmission line protection equipment

This standard specifies the technical requirements, test methods, inspection rules, and requirements for marking, packaging, transportation, and storage of relay protection devices for transmission lines. This standard applies to relay protection devices for transmission lines of 110 kV and above with a directly grounded neutral point (hereinafter referred to as the device), and serves as a basis for research, design, manufacturing, testing, inspection, and application of such devices.

Publish Date: 2008-09-24

GB/T 15148-2008 Technical specification of power load management system

This standard specifies the technical requirements for power load management systems.
This standard applies to the manufacture and use of power load management systems.

Publish Date: 2008-09-24

GB/T 15166.2-2008 High-voltage alternating-current fuses—Part 2:Current-limiting fuses

This part applies to all types of high-voltage current-limiting fuses used indoors and outdoors in AC power systems with a nominal voltage of 3 kV and above and a frequency of 50 Hz.
Some fuses are equipped with indicating devices or impactors. These fuses fall within the scope of this part, but the correct operation of the impactors in combination with the trip mechanisms of the switch devices is not within the scope of this part. For details, please refer to GB 16926.

Publish Date: 2008-09-24

GB/T 15166.3-2008 High-voltage alternating-current fuses—Part 3:Expulsion fuses

This part applies to indoor or outdoor injection-type fuses in AC power systems with a nominal voltage of 3 kV or higher and a frequency of 50 Hz. According to different transient recovery voltages (TRV), injection-type fuses are divided into Class A, Class B, and Class C. This part only deals with the performance of fuses. Each fuse is composed of a fuse base, a fuse carrier, and a fuse element that have passed the tests specified in this part. The performance of other combinations is not included in this part. This part also applies to non-injection-type fuses that naturally open at the zero point of current.

Publish Date: 2008-09-24

GB/T 15166.4-2008 High-voltage alternating-current fuses—Part 4:Fuses for external protection of shunt power capacitors

This section applies to high-voltage fuses for protecting single or grouped parallel capacitors in AC power systems with a nominal voltage of 3 kV or higher and a frequency of 50 Hz.

Publish Date: 2008-09-24

GB/T 15166.5-2008 High-voltage alternating-current fuses—Part 5:Specification for high-voltage fuse-links for motor circuit applications

This section specifies the time-current characteristics of the fuse elements of high-voltage fuses used in motor circuits, the requirements for pulse withstand tests, and guidelines for their selection. This section applies to fuse elements used in motors directly started in AC power systems with a nominal voltage of 3 kV and above and a frequency of 50 Hz. The fuse elements must withstand normal operating conditions and the starting pulses of the motors, and they should meet the requirements of GB/T 15166.2—2008.

Publish Date: 2008-09-24