GB/T 24273-2009Test method for electrical properties of electrical contact materials (English PDF)
电触头材料电性能试验方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 19, 2009
Implementation date
February 1, 2010
Scope
GB/T 24273-2009 is the English-translated version of 电触头材料电性能试验方法.
GB/T 24273-2009 is the Chinese standard "Test method for electrical properties of electrical contact materials".
Its scope clause reads: 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. Its clauses include terms and definitions; test equipment.
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Document preview — GB/T 24273-2009
National Standard of the People's Republic of China
- ICS
- 29.120.99
- Classification
- K 14
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Test Equipment
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.
GB/T 38090-2019 | GB/T 3217-2013 | GB/T 29628-2013 | GB/T 24269-2009 | GB/T 24268-2009 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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