Tiêu chuẩn quốc tế
Số hiệu
Standard Number
ASTM G165-99(2017)
Năm ban hành 2017
Publication date
Tình trạng
A - Còn hiệu lực
Status |
Tên tiếng Anh
Title in English Standard Practice for Determining Rail-to-Earth Resistance
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Chỉ số phân loại Quốc tế (ICS)
By field
45.120 - Thiết bị đường sắt/Xây dựng và bảo vệ dây kéo toa
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Số trang
Page 5
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard 1.1 This practice covers the procedures necessary to follow for measuring resistance-to-earth of the running rails which are used as the conductors for returning the train operating current to the substation in electric mass transit systems. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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