This standard specifies the general specification and safety requirements for DC power supply equipment of power projects as well as the requirements of inspection method, inspection rules, marking, packaging, transportation and storage, etc.
This standard is applicable to DC power supply equipment which is used to power the DC control load and DC power load, etc. in power plant, substation and other power projects of power system (hereinafter referred to as product), and serves as a basis for design, manufacturing, inspection and application of product.
This standard is also applicable to DC power supply equipment used in power projects of metallurgical industry, petrochemical industry and railway industry, etc., and may be referred by other DC power supply equipment uncovered herein.
2 Normative References
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these documents apply. For undated reference, the latest edition applies.
GB/T 2423.4-1993 Basic Environmental Testing Procedures for Electric and Electronic Products—Test Db: Damp Heat, Cyclic (eqv IEC 68-2-30:1980)
GB/T 2900.1 Electrotechnical Terminology—Fundamental Terms (GB/T 2900.1-1992, neq IEC 60050)
GB/T 2900.11 Terminology of (Secondary) Cell or Battery (GB/T 2900.11-1988, eqv IEC 60050(486):1986)
GB/T 2900.17 Electrotechnical Terminology—Electrical Relays (GB/T 2900.17-1994)
GB/T 2900.32 Electrotechnical Terminology—Power Semiconductor Device (GB/T 2900.32-1994)
GB/T 2900.33 Electrotechnical Terminology—Power Electronics (GB/T 2900.33-2004, IEC 60050(551):1998, IDT)
GB 4208-1993 Degrees of Protection Provided by Enclosure (IP Code) (eqv IEC 60529:1989)
GB/T 4365 Electrotechnical Terminology—Electromagnetic Compatibility (GB/T 4365-2003, IEC 60050(161):1990, IDT)
GB/T 7261-2000 Basic Testing Method for Relay and Equipment
GB/T 7267-2003 Series of Basic Dimension of Control and Protective Panels and Cabinet for Secondary Circuit of Power System
GB 9254-1998 Information Technology Equipment—Radio Disturbance Characteristics—Limits and Methods of Measurement (idt CISPR 22:1997)
GB/T 11287-2000 Electrical Relays—Part 21: Vibration, Shock, Bump and Seismic Tests on Measuring Relays and Protection Equipment—Section One: Vibration Tests (Sinusoidal) (idt IEC 60255-21-1:1988)
GB/T 14537-1993 Shock and Bump Tests on Measuring Relays and Protection Equipment (idt IEC 60255-21-2)
GB 17625.1-2003 Electromagnetic Compatibility—Limits—Limits for Harmonic Current Emissions (Equipment Input Current ≤16A per Phase) (IEC 61000-3-2:2001, IDT)
GB/Z 17625.6-2003 Electromagnetic Compatibility—Limits—Limitation of Emission of Harmonic Currents in Low-voltage Power Supply Systems for Equipment with Rated Current Greater Than 16A (IEC 61000-3-4:1998, IDT)
GB/T 17626.2-1998 Electromagnetic Compatibility—Testing and Measurement Techniques—Electrostatic Discharge Immunity Test (idt IEC 61000-4-2:1995)
GB/T 17626.3-1998 Electromagnetic Compatibility—Testing and Measurement Techniques—Radiated Radio-frequency Electromagnetic Field Immunity Test (idt IEC 61000-4-3:1995)
GB/T 17626.4-1998 Electromagnetic Compatibility—Testing and Measurement Techniques—Electrical Fast Transient/Burst Immunity Test (idt IEC 61000-4-4:1995)
GB/T 17626.5-1999 Electromagetic Compatibility—Testing and Measurement Techniques—Surge (impact) Immunity Test (idt IEC 61000-4-5:1995)
GB/T 17626.6-1998 Electromagnetic Compatibility—Testing and Measurement Techniques—Immunity to Conducted Disturbances, Induced by Radio-frequency Fields (idt IEC 61000-4-6:1996)
GB/T 17626.8-1998 Electromagetic Compatibility—Testing and Measurement Techniques—Power Frequency Magnetic Field Immunity Test (idt IEC 61000-4-8:1993)
GB/T 17626.10-1998 Electromagetic Compatibility—Testing and Measurement Techniques—Damped Oscillatory Magnetic Field Immunity Test (idt IEC 61000-4-10:1993)
GB/T 17626.12-1998 Electromagnetic Compatibility—Testing and Measurement Techniques—Oscillatory Waves Immunity Test (idt IEC 61000-4-12:1995)
DL/T 634.5101-2002 Telecontrol Equipment and Systems—Part 5: Transmission Protocols—Section 101: Companion Standard for Basic Telecontrol Tasks (IEC 60870-5-101:2002, IDT)
DL/T 634.5104-2002 Telecontrol Equipment and Systems—Part 5-104: Transmission Protocols—Network Access for IEC 60870-5-101 Using Standard Transport Profiles (IEC 60870-5-104:2000, IDT)
DL/T 5044-2004 Technical Code for Designing DC System of Power Projects
JB/T 5777.2-2002 General Specification for Control and Protection Panel (Cabinet, Desk) of Secondary Circuit of Power System
JB/T 5777.3-2002 Basic Testing Method for Control and Protection Panel (Cabinet, Desk) of Secondary Circuit of Power System
3 Terms and Definitions
For the purposes of this standard, the terms and definitions specified in GB/T 2900.1, GB/T 2900.11, GB/T 2900.17, GB/T 2900.32, GB/T 2900.33 and GB/T 4365 as well as those listed below apply.
3.1
DC power supply equipment
An assembly which is composed of charging unit, storage battery, feed-out circuit, voltage regulator and associated equipment such as control, measurement, signal, protection and regulating units, and integrally assembled with structural components. All the internal electrical and mechanical connections are completed by the manufacturer.
3.2
Charging unit
A type of rectifying device undertaking the charge and/or floating charge tasks of storage battery set.
3.3
Charge
The operating state of charging unit for supplementing capacity to the storage battery in different operating modes.
