GB/T 3928-2008 English PDF

US$294.00 · In stock
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GB/T 3928-2008: D.C. resistive volt ratio boxes
Status: Valid

GB/T 3928: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3928-2008	294	Add to Cart	3 days	D.C. resistive volt ratio boxes	Valid
GB/T 3928-1983	599	Add to Cart	4 days	D. C. resistive volt ratio boxes	Obsolete

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Basic data

Standard ID: GB/T 3928-2008 (GB/T3928-2008)
Description (Translated English): D.C. resistive volt ratio boxes
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N28
Classification of International Standard: 17.220.20
Word Count Estimation: 15,189
Date of Issue: 2008-08-06
Date of Implementation: 2009-03-01
Older Standard (superseded by this standard): GB/T 3928-1983
Adopted Standard: IEC 60524-1997, 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 applies to a fixed rate, the rated input voltage up to 1. 5kV and grade index was 0. 1 [1000ppm (parts per million) ] or better DC resistance partial pressure tank. This standard applies to enclosed or manufacturing unit (or a responsible supplier who) provided partial pressure tank as the main components of all the equipment. This standard does not apply to auxiliary equipment.

GB/T 3928-2008: D.C. resistive volt ratio boxes

---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.
DCresistive volt ratio boxes ICS 17.220.20 N28 National Standards of People's Republic of China GB/T 3928-2008/IEC 60524.1997 Replacing GB/T 3928-1983 DC resistor divider box (IEC 60524.1997, 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 standard is equivalent to using the International Electrotechnical Commission standard IEC 60524.1997 "DC resistor divider box" (in English), its technical content and Structure and IEC 60524.1997 are identical. Since the implementation of this standard replaces GB/T 3928-1983 "DC resistor divider box." This standard compared with GB/T 3928-1983, the main changes are as follows. --- Information and content of the flag, the deletion of the original test voltage signs, increased pollution level requirements. Appendix A of this standard is a normative appendix. The standard proposed by China Machinery Industry Federation. This standard by the National Electrical Instrument Standardization Technical Committee (SAC/TC104) centralized. This standard is drafted by. Shanghai Instrument Research Institute. Participated in the drafting of this standard. Shanghai Factory Zhengyang, the Highland Sting Instrument Research Institute. The main drafters of this standard. Zhangyin Fu, Dong Yafeng. This standard replaces the standards previously issued as follows. --- GB/T 3928-1983. GB/T 3928-2008/IEC 60524.1997 DC resistor divider box

1 Scope

This standard applies to a fixed rate, the rated input voltage up to 1.5kV and rating index 0.1 [1000ppm (parts per million Several)] or better DC resistor divider box. This standard applies to enclosed or manufacturing units (or responsible supplier), provided as part of the partial pressure of the main tank all devices. This standard does not apply to auxiliary equipment.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 Having a fixed ratio to provide an output voltage equal to the input voltage of the device a predetermined fraction of the resistor network composed. Partial pressure tank may have one or several ratios, in the latter case, the input may be a few [FIG. 1A)] or several outputs [Fig. 1b)]. Note. It is often used as a DC potentiometer range multiplier. a) b) Figure 1 2.2 It appears in the partial pressure of the tank voltage grades. 2.3 Rated input voltage and rated output voltage ratio. 2.4 Input voltage and open circuit output voltage ratio applied. 2.5 May be applied to the partial pressure of the tank circuit and the partial pressure of the contact box is not to become the highest voltage to ground, it constitutes the partial pressure of tank insulation from the view point of danger Taking into account that voltage. Note. The auxiliary circuits (if any) may have different wiring insulation voltage (nominal line voltage) value. 2.6 Partial pressure tank can work safely and accurately for additional equipment necessary for measuring the voltage. GB/T 3928-2008/IEC 60524.1997 ......

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