GB/T 7676.4-2017Direct acting indicating analogue electrical measuring instruments and their accessories—Part 4: Special requirements for frequency meters (English PDF)
直接作用模拟指示电测量仪表及其附件 第4部分：频率表的特殊要求
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 7, 2017
Implementation date
April 1, 2018
Scope
GB/T 7676.4-2017 is the English-translated version of 直接作用模拟指示电测量仪表及其附件 第4部分：频率表的特殊要求.
GB/T 7676.4-2017 is the Chinese standard "Direct acting indicating analogue electrical measuring instruments and their accessories—Part 4: Special requirements for frequency meters".
Its scope clause reads: This section GB/T 7676 specifies the direct role of analog electrical measurement frequency meter terms and definitions, classification, grading, common technology Requirements, information, signs and symbols, packaging and storage and inspection rules.
This section applies to direct the role of analog frequency table instructions. This section also applies to a combination of frequency tables and accessories when an attachment is used with a frequency meter and adjusted in combination.
This section also applies to the frequency meter with electronics in its measurement and/or auxiliary circuits. This section does not apply to the corresponding national standards for special-purpose frequency table.
Its clauses include terms and definitions; classification, grading and compliance.
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Document preview — GB/T 7676.4-2017
National Standard of the People's Republic of China
- ICS
- 17.220.20
- Classification
- N 21
- Replacing
- GB/T 7676.4-1998
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Classification, grading and compliance
1 Scope
This section GB/T 7676 specifies the direct role of analog electrical measurement frequency meter terms and definitions, classification, grading, common technology
Requirements, information, signs and symbols, packaging and storage and inspection rules.
This section applies to direct the role of analog frequency table instructions.
This section also applies to a combination of frequency tables and accessories when an attachment is used with a frequency meter and adjusted in combination.
This section also applies to the frequency meter with electronics in its measurement and/or auxiliary circuits.
This section does not apply to the corresponding national standards for special-purpose frequency table.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 7676.1-2017 Direct acting analogue indicating electrical measuring instruments and their accessories Part 1. Definitions and general requirements
GB/T 7676.9-2017 Direct acting analogue indicating electrical measuring instruments and their accessories Part 9. Recommended test methods
3 Terms and definitions
GB/T 7676.1-2017 defined terms and definitions apply to this document.
4 Classification, grading and compliance
4.1 Classification
4.1.1 by the working methods and characteristics of classification
Frequency table divided into. Analog frequency meter and vibrating spring frequency meter.
4.1.2 by the use of classification
According to GB/T 7676.1-2017 in the provisions of 4.1.2.
4.1.3 Classified by environmental conditions
According to GB/T 7676.1-2017 in the provisions of 4.1.3.
4.1.4 classified by mechanical conditions
According to GB/T 7676.1-2017 in the provisions of 4.1.4.
4.1.5 according to the classification of enclosure protection
According to GB/T 7676.1-2017 in the provisions of 4.1.5.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of GB/T 7676.4
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 7676.4-2017 | Direct acting indicating analogue electrical measuring instruments and their accessories—Part 4: Special requirements for frequency meters | current edition | Current |
| GB/T 7676.4-1998 | Direct acting indicating analogue electrical measuring instruments and their accessories—Part 4: Special requirements for frequency meters | previous edition | Superseded |
This page sells the current edition, GB/T 7676.4-2017. Earlier editions are listed for reference only.
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Related Standards
GB/T 7676.1-2017 — Direct acting indicating analogue electrical measuring Instruments and their accessories - Part 1: Definitions and general requirements common to all parts
GB/T 7676.2-2017 — Direct acting indicating analogue electrical measuring instruments and their accessories—Part 2: Special requirements for ammeters and voltmeters
GB/T 7676.3-2017 — Direct acting indicating analogue electrical measuring instruments and their accessories—Part 3: Special requirements for wattmeters and varmeters
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GB/T 7676.4-2017
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