GB/T 17215.421-2008 English PDF

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GB/T 17215.421-2008: Electricity metering equipment (a.c.) -- Tariff and load control -- Part 21: Particular requirements for time switches
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 17215.421-2008	214	Add to Cart	3 days	Electricity metering equipment (a.c.) -- Tariff and load control -- Part 21: Particular requirements for time switches	Valid

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Basic data

Standard ID: GB/T 17215.421-2008 (GB/T17215.421-2008)
Description (Translated English): Electricity metering equipment (a.c.) -- Tariff and load control -- Part 21: Particular requirements for time switches
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N22
Classification of International Standard: 17.220.20
Word Count Estimation: 11,121
Date of Issue: 2008-08-06
Date of Implementation: 2009-03-01
Older Standard (superseded by this standard): GB/T 9092-1998
Quoted Standard: IEC 62052-21-2004
Adopted Standard: IEC 62054-21-2004, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 12 of 2008 (No. 125 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the latest manufacturing indoor use and has a working reserve time switch type test special requirements. Time switches commonly used in electricity load control, multi-rate Jidu energy metering equipment and the maximum demand devices.

GB/T 17215.421-2008: Electricity metering equipment (a.c.) -- Tariff and load control -- Part 21: Particular requirements for time switches

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Electricity metering equipment (ac) Tariff and load control Part 21. Particular requirements for time switches ICS 17.220.20 N22 National Standards of People's Republic of China GB/T 17215.421-2008/IEC 62054-21.2004 Replacing GB/T 9092-1998 AC measurement tariff and load control Part 21. Particular requirements for time switches (IEC 62054-21.2004, IDT) Posted 2008-08-06 2009-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This section is equivalent to using the IEC 62054-21 "AC measurements tariff and load control - Part 21. Particular requirements for time switches" 2004 edition. "This part of the preparation of the structure and format is consistent with IEC 62054-21. This Part replaces GB/T 9092-1998 "tariff and load control time switch." This part of GB/T 9092-1998 The main differences are as follows. --- Terminology and definitions, electrical requirements, mechanical requirements, weather conditions, electromagnetic field immunity test DC, AC electromagnetic field immunity Test, test conditions and type tests, radio interference suppression requirements of a direct reference to IEC 62052-21; --- This section increases the timing accuracy testing, electromagnetic field immunity test and fast transient tests done specifically described. Since the implementation of this section, the original national standard GB/T 9092-1998 repealed simultaneously. Appendix A of this section is an informative annex. This part is proposed by China Machinery Industry Federation. This part of the National Electrical Instrument Standardization Technical Committee (SAC/TC104) centralized. This section is drafted. Harbin Institute of Electrical Instrument. The main drafters of this section. Zhang Lihua, Han Guiju, Xu Renheng. This part of the standard replaces the previous editions are. --- GB/T 9092-1998. GB/T 17215.421-2008/IEC 62054-21.2004 AC measurement tariff and load control Part 21. Particular requirements for time switches

1 Scope

GB/T 17215 in the provisions of this part of the latest special type tests made for indoor use and has a working time of the switch to reserve begging. Time switches commonly used in the electric power load control, maximum demand means multi-rate boarding and energy metering equipment. Switches maintain real time, it can save the date, but also be able to handle leap years, when it also supports daylight saving time, that is to say, according to the relevant rules, It can modify the local time and GMT offset. Time switch also has synchronization, switching time of the switch is also stored procedure table, which You can time period, week, or month in the specified date. Time switch according to the time table and stored procedures to control the output unit. This part of the internal structure of the time switch is not required. When the time switch function and multi-function meter function together, the relevant part of this section still apply. This section includes mechanical time having an analog dial or electronic digital display switch. --- Synchronous time switches; --- Crystal-controlled time switch. This section does not include receiver testing and conformance testing, but receives the test given as examples in Appendix A. Reliability requirements with reference to IEC 62059. This part of IEC 62052-21 when used simultaneously, this part of the terms better than IEC 62052-21.

2 Normative references

The following documents contain provisions which, through reference GB/T 17215 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. IEC 62052-21.2004 AC electronic power meter General requirements, tests and test conditions - Part 21. tariff and load control Claim

3 Terms and Definitions

IEC 62052-21 The definitions apply to this section. Standard electrical values \u200b\u200b4 Value given in IEC 62052-21 apply to this section.

5 Mechanical requirements and tests

Requirements given in IEC 62052-21 and tests apply to this section. 5.1 dial For the time has analog mechanical dial switch. --- Dial rotational direction by an arrow mark; --- Hour dial (if any) should be able to read the minutes; GB/T 17215.421-2008/IEC 62054-21.2004 ......

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