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GB/T 18802.321-2007 English PDF

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US$274.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 18802.321-2007: Components for low-voltage surge protective devices -- Part 321: Specifications for avalanche breakdown diode (ABD)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 18802.321-2007	274	Add to Cart	3 days	Components for low-voltage surge protective devices -- Part 321: Specifications for avalanche breakdown diode (ABD)	Valid

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Basic data

Standard ID: GB/T 18802.321-2007 (GB/T18802.321-2007)
Description (Translated English): Components for low-voltage surge protective devices -- Part 321: Specifications for avalanche breakdown diode (ABD)
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K49
Classification of International Standard: 29.080.99
Word Count Estimation: 14,150
Date of Issue: 2007-06-21
Date of Implementation: 2008-02-01
Quoted Standard: IEC 60068; IEC 60364; IEC 60364-3-1993; IEC 60721; IEC 60747-2-2000; IEC 60749-1996
Adopted Standard: IEC 61643-321-2001, IDT
Regulation (derived from): GB Notice 2007 No. 6 (No. 106 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 surge protective devices avalanche breakdown diode. Design and manufacture of surge protection and low-voltage distribution systems, transmission systems, communication networks connected to the system. This section applies to a single test specifications across ABD. ABD can be packaged in a tube a plurality of housing parts as a single diode. This component of each diode can be tested under this section. This section contains a series of electrical properties for ABD test methods. This part of the test method used to verify or measure specific package design ABD ratings and property value.

GB/T 18802.321-2007: Components for low-voltage surge protective devices -- Part 321: Specifications for avalanche breakdown diode (ABD)

---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.
Components for low-voltage surge protective devices Part 321. Specificatoins for avalanche breakdown diode (ABD) ICS 29.080.99 K49 National Standards of People's Republic of China GB/T 18802.321-2007/IEC 61643-321.2001 Low-voltage surge protective devices Part 321. avalanche breakdown diode (ABD) specification (IEC 61643-321.2001, IDT) Posted 2007-06-21 2008-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms, definitions and symbols 1 4 avalanche breakdown diode structure and basic note 3 5 5 Operating Conditions 6 standard test methods and procedures 5 7 failures and failure modes 9 Figure 1 unidirectional avalanche breakdown diode structure, biased state and Vp -I characteristic 4 Figure 2 clamping voltage Vp C, and peak pulse current IPP rated forward surge current test circuit 5 IFSM Figure 3 Maximum operating voltage Vp WM, standby current ID and the maximum operating voltage rms Vp WMrms test circuit 6 Figure 4 (avalanche) breakdown voltage Vp BR test circuit 6 5 Forward Surge voltage Vp FS test circuit 7 Figure 6 avalanche breakdown diode derating curve 8 7 overshoot voltage, response time, overshoot duration curve shown 9 8 pulse current waveform 9 GB/T 18802.321-2007/IEC 61643-321.2001

Foreword

GB/T 18802 "Low Voltage Surge Protector (SPD)" series of standards structure and name are expected as follows. --- Low-voltage distribution systems with a surge protector (SPD) - Part 1. Performance requirements and test methods (GB 18802.1-2002 / IEC 61643-1.1998); --- Low-voltage distribution systems with a surge protector (SPD) - Part 12. Guidelines for selection and use; --- Low-voltage surge protective devices - Part 21. telecommunications and signaling networks using low-voltage surge protection device (SPD) --- Performance requirements and tests The method (GB/T 18802.21-2004/IEC 61643-21.2000); --- Low voltage surge protector Part 22. telecommunications and signaling networks using low-voltage surge protection device (SPD) --- selection and use Guidelines; --- Voltage surge protective devices - Part 311. Gas Discharge Tubes (GDT) specification; --- Voltage surge protective devices - Part 321. avalanche breakdown diode (ABD) specification (GB/T 18802.321-2007 / IEC 61643-321.2001); --- Voltage surge protective devices - Part 331. varistor (MOV) specification; --- Voltage surge protective devices - Part 341. thyristor surge suppression (TSS) specification. This section identical with IEC 61643-321.2001 "low-voltage surge protection device avalanche breakdown diode specification." In the technical content And the structure of the text and IEC 61643-321.2001 same. IEC 61643-321.2001 Normative standards listed in the document, although some parts of the country have been transformed into national standards, but conversion Complexity, inconvenience references, so this part is still using the IEC standard. For ease of use, this section made the following editorial changes. a) with a decimal point '. 'Instead of a comma as the decimal point,' '; b) Remove the preface to international standards. This part is proposed by the China Electrical Equipment Industrial Association. This part of the National Standardization Technical Committee arrester (SAC/TC81) centralized. This section is drafted. Ceramic Institute, Xi'an, Xi'an Power Electronics Research Institute. The main drafters of this section. Sang Jianping, Qin Yin Man, Zhu Jiaxi, Shao Xiaoping. GB/T 18802.321-2007/IEC 61643-321.2001 Low-voltage surge protective devices Part 321. avalanche breakdown diode (ABD) specification

1 Scope

This section applies to surge protective devices (abbreviated SPDC) avalanche breakdown diode (ABD). Design and manufacture of surge protectors And low-voltage distribution systems, transmission systems, communication network connected to the system. This section applies to a single test specification ends ABD. ABD can be packaged in a plurality of the envelope as a single diode unit Member. The components of each diode can be tested in accordance with this section. This section contains a series of test methods for electrical properties of ABD. This part of the test method used to verify or measure specific package Ratings and characteristics of the design value of ABD.

2 Normative references

The following documents contain provisions which, through reference in this text, constitute provisions of this part. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to this part of the research agreement Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this section. Environmental testing IEC 60068 (all parts) Electrical installations of buildings IEC 60364 (all parts) IEC 60364-3.1993 Electrical installations of buildings - Part 3. General features Assessment Classification of environmental conditions IEC 60721 (all parts) IEC 60747-2.2000 Semiconductor devices - Discrete devices and integrated circuits - Part 2. Rectifier diodes IEC 60749.1996 Semiconductor devices - Mechanical and climatic test methods 3 Terms, definitions and symbols The following terms, definitions and letter symbols apply to this section. Note. This chapter applies to the definition of the SPDC ABD, having symmetrical and asymmetrical voltage - current (Vp -I) characteristics. This chapter defines the terms for a one-way device (See Figure 1), in consideration of bidirectional ABD, concerning the definition of the third quadrant is applicable to both directions Vp -I characteristic curve. 3.1 Used to suppress transient voltage and surge current shunt device. It may also be encapsulated together by a plurality of devices having a common terminal Both ends of the diode. 3.2 Vp C When applying a predetermined peak pulse current IPP waveform, ABD peak voltage measured across. Note. Due to the heat, the reaction force or other effects, peak voltage and peak pulse current position does not have to coincide in time. Also represented by Vp CL. 3.3 IPPM It can be applied without causing failure of the diode peak pulse current IPP rated maximum. Note. Unless otherwise specified, the surge waveform for the diode characteristics of 10/1000μs. GB/T 18802.321-2007/IEC 61643-321.2001 ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 18802.321-2007_English be delivered?

Answer: Upon your order, we will start to translate GB/T 18802.321-2007_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 18802.321-2007_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 18802.321-2007_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.