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Database: 189759 (19 Oct 2025)
GB/T 51242-2017 English PDF
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Standard Title (Description)
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GB/T 51242-2017
English
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Code for Engineering Design of Synchronous Digital Hierarchy (SDH) Optical Fiber Transmission System
Valid
GB/T 51242-2017
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Basic data
Standard ID
GB/T 51242-2017 (GB/T51242-2017)
Description (Translated English)
Code for Engineering Design of Synchronous Digital Hierarchy (SDH) Optical Fiber Transmission System
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
P76
Word Count Estimation
135,158
Date of Issue
2017-05-27
Date of Implementation
2018-01-01
Regulation (derived from)
Housing and Urban-Rural Development Bulletin 2017 No. 1572
Issuing agency(ies)
Ministry of Housing and Urban-Rural Development of the People's Republic of China; General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China