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GB/T 24273-2009 English PDF

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GB/T 24273-2009: Test method for electrical properties of electrical contact materials
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PDF similar to GB/T 24273-2009


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Basic data

Standard ID GB/T 24273-2009 (GB/T24273-2009)
Description (Translated English) Test method for electrical properties of electrical contact materials
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard K14
Classification of International Standard 29.120.99
Word Count Estimation 8,866
Date of Issue 2009-06-19
Date of Implementation 2010-02-01
Regulation (derived from) Announcement of Newly Approved National Standards No. 9, 2009 (No. 149 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 low-voltage electrical contact material in the DC electricity 100 V or less, AC 400 V or less, an electric current is 30 A less wear and tear, electrical life, contact resistance, temperature and other electrical properties of test methods. This standard applies to the same experimental conditions between materials of different electrical contact performance comparison.

GB/T 24273-2009: Test method for electrical properties of electrical contact materials

---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.
Test method for electrical properties of electrical contact materials ICS 29.120.99 K14 National Standards of People's Republic of China Electrical contact materials electrical performance test method Posted 2009-06-19 2010-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard proposed by China Electrical Equipment Industrial Association. This standard by the National Standardization Technical Committee for Electrotechnical alloy (SAC/TC228) centralized. This standard is drafted by. Guilin Electrical Apparatus Research Institute, Fuda Alloy Co., Ltd. Wenzhou pagoda silver contacts. Participated in the drafting of this standard. Ginger Guilin Electrical and Electronic Materials Technology Co., Ltd., and Greece Alloy Co., Ltd., Guangzhou-chi Electrical Alloy Co., Ltd., Wenzhou Hongfeng Electrical Alloy Co., Ltd., Foshan Electrical Precision Alloy Co., Ltd. Zhejiang Le silver alloy. Drafters of this standard. Xie Yongzhong, Chen Jingsheng, Bai Xiaoping, Ma tuba. Participate drafters of this standard. Zheng Yuanlong, Wu Xinhe, Reallize Zhang Xiaohui, Li Heng, Houyue Bin, WANG Yong-shun, Chen Jing. Electrical contact materials electrical performance test method

1 Scope

This standard specifies the electrical low-voltage electrical contact material in the following DC 100V AC 400V or less, the following current 30A electric mill Standard Test Method for damage, electrical life, contact resistance, temperature and other electrical properties. This standard applies to the performance comparison between the different electrical contact materials under the same test conditions.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 2900.4 Electrotechnical terminology - Electrical Alloy GB/T 2900.18 Electrotechnical term low-voltage electrical

3 Terms and definitions

In addition to using this standard GB/T 2900.4 and GB/T 2900.18 in terms, but also by the following terms. 3.1 Under the given test conditions, the electrical contacts through several of the cut by the electric arc, mechanical and chemical effects and loss of quality. 3.2 Under the given test conditions, test the electrical contacts can not be reliably breaking (welding, bite), or move, when the pressure drop static contact contact therebetween More than 10% of the main circuit supply voltage. 3.3 Under the given test conditions, test to breaking number of electrical contacts at failure.

4 Test Equipment

4.1 Power and mechanical transmission 4.1.1 General 4.1.1.1 dynamic and static contact relative motion can be pneumatic, or electromagnetic force pushing push cam and other ways, Either way, Shall meet the requirements of 4.1.2 ~ 4.1.4. 4.1.1.2 Test equipment for a pair of contacts both tests, but also for a plurality of pairs (one pair) contacts test, trial when more pairs of contacts, each pair of contacts The test parameters and the difference between the average breaking force, closing force and so shall not exceed ± 5% of the mean. 4.1.2 positioning device Test equipment should position adjustment functions to ensure dynamic and static contact is on contact and will not loose in the test, the shift. 4.1.3 open distance adjusting means It should be able to open from 0.5mm ~ 20mm continuously adjustable within the range of movement of the contacts. 4.1.4 breaking force, closing force adjustment means Breaking force, closing force shall be adjustable, the recommended adjustment range 0.098N ~ 4.9N.

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