GB/T 33708-2017Static meter for direct current energy (English PDF)
静止式直流电能表
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 12, 2017
Implementation date
May 12, 2017
Scope
GB/T 33708-2017 is the English-translated version of 静止式直流电能表.
GB/T 33708-2017 is the Chinese standard "Static meter for direct current energy". Issued on 2017-05-12.
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Document preview — GB/T 33708-2017
Contents
- 1 Scope
- 2 Normative References
- 3 Terms and Definitions
- 4 Standard Electric Quantity Value
- 4.1 Standard Reference Voltage
- 4.2 Standard Reference Current
- 4.3 Maximum Voltage
- 4.4 Maximum Current
- 5 Mechanical Requirements and Tests
- 5.1 General Mechanical Requirements
- 5.2 Enclosure
- 5.2.1 Requirements
- 5.2.2 Tests
- 5.2.2.1 Spring hammer test
- 5.2.2.2 Shock test
- 5.2.2.3 Vibration test
- 5.3 Electric Clearance and Creepage Distance
- 5.4 Category II Instrument Encapsulated with Protective Insulation
- 5.5 Heat Resistance and Flame Retardance
- 5.6 Dust Prevention and Waterproofing
- 5.7 Display of Measured Value
- 5.8 Output Device
- 5.9 Mark of Instrument
- 5.10 Appearance Inspection
- 6 Climate Conditions
- 6.1 Temperature Range
- 6.2 Relative Humidity
- 6.3 Climate Environment Influence Test
- 7 Electrical Requirements
- 7.1 Voltage Influence
- 7.2 Power Consumption
- 7.3 Short-term Overcurrent Influence
- 7.4 Self-heating Influence
- 7.5 Temperature Rise
- 7.6 Insulation Resistance
- 7.7 AC Voltage Test
- 7.8 Impulse Voltage Test
- 7.9 DC Ripple Influence Test
- 7.10 Reversed Polarity Connection of Voltage Circuit
- 8 Accuracy
- 8.1 Test Reference Condition
- 8.2 Intrinsic Error
- 8.3 Intrinsic Error Limit under Reference Voltage
- 8.4 Intrinsic Error Limit under Reference Current
- 8.5 Error Change Caused by Influence Quantity
- 8.6 Start and Creeping
- 8.7 Instrument Constant
- 8.8 Clock Timing Error
- 8.9 Power Supply Voltage Change
- 9 Electromagnetic Compatibility (EMC)
- 9.1 Radio Interference Rejection
- 9.2 Fast Transient Burst Immunity Test
- 9.3 Radio-frequency Electromagnetic Field Radiation Immunity Test
- 9.4 Immunity Test of Conducted Disturbances Induced by Radio-frequency Field
- 9.5 Electrostatic Discharge Immunity Test
- 9.6 Surge Immunity Test
- 9.7 External Constant Magnetic Induction Influence Test
- 9.8 External Power Frequency Magnetic Field Influence Test
1 Foreword
GB/T 33708-2017 was issued by State Administration for Market Regulation; Standardization Administration of the PRC on 12 May 2017.
It is one of 4 parts of the GB/T 33708 series.
2 Scope
This standard specifies the terms, requirements and test methods and inspection rules of static meter for direct current energy (hereinafter referred to as instrument). This standard is only applicable to the newly manufactured instrument with input voltage not greater than 1000V. This standard is not applicable to the following conditions: ——instrument with input voltage greater than 1000V; ——DC standard instrument; ——portable instrument.
3 Normative references
GB/T 4798.1-2005 — Environmental Conditions Existing in the Application of Electric and Electronic Products - Section 1: Storage
GB/T 4798.2-2008 — Environmental Conditions Existing in the Application of Electric and Electronic Products - Section 2: Transportation
GB/T 13384-2008 — General Specifications for Packing of Mechanical and Electrical Product
GB/T 16935.1-2008 — Insulation Coordination for Equipment within Low-voltage Systems - Part 1: Principles Requirements and Tests
GB/T 17215.211-2006 — Electricity Metering Equipment (a.c.) - General Requirements, Tests and Test Conditions - Part 11: Metering Equipment
GB/T 17215.301-2007 — Particular Requirements for Multi-function Electricity Meters
GB/T 17215.321-2008 — Electricity Metering Equipment (a.c.) - Particular Requirements - Part 21: Static Meters for Active Energy (Classes 1 and 2)
GB/T 17215.421-2008 — Electricity Metering Equipment (a.c) - Tariff and Load Control - Part 21: Particular Requirements for Time Switches
GB/T 17626.11-2008 — Electromagnetic Compatibility - Testing and Measurement Techniques - Voltage Dips, Short Interruptions and Voltage Variations Immunity Tests
GB/T 17626.29-2006 — Electromagnetic Compatibility(EMC) - Testing and Measurement Techniques - Voltage Dips Short Interruptions and Voltage Variations on d.c. Input Power Port Immunity Tests
GB/T 17627.1-1998 — High-voltage Test Techniques For Low-voltage Equipment Part 1: Definitions, Test and Procedure Requirements
QC/T 413-2002 — Technical Specification for Electronic Equipment for Automobiles
IEC 61010 — -1: 2010 Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements
4 About this standard
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
English translation: about 15 pages (approximate)
5 Related standards
Other parts of this standard:
GB/T 33708.1-2025 — Electrictity metering equipment(DC) - Part 1: General requirements
GB/T 33708.2-2025 — Electricity metering equipment (DC) - Part 2: Indirect-connected static meters (classes 0.2, 0.5 and 1)
GB/T 33708.3-2025 — Electricity metering equipment (DC) - Part 3: Direct-connected static meters (classes 0.5 and 1)
6 Classification and status
Chinese Standard Classification (CCS): N 22
Prefix GB/T: recommended standard.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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Related Standards
GB/T 33708.1-2025 — Electrictity metering equipment(DC) - Part 1: General requirements
GB/T 33708.2-2025 — Electricity metering equipment (DC) - Part 2: Indirect-connected static meters (classes 0.2, 0.5 and 1)
GB/T 33708.3-2025 — Electricity metering equipment (DC) - Part 3: Direct-connected static meters (classes 0.5 and 1)
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GB/T 33708-2017
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