YD/T 939-1997Transmission equipment with a DC power distribution box (English PDF)
传输设备用直流电源分配列柜
YD/T 939 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| YD/T 939-2014 | Power distribution cabinet for transmission equipment | Valid |
| YD/T 939-2005 | Power distributing file cabinet for transfer equipment | Obsolete |
| YD/T 939-1997 | Transmission equipment with a DC power distribution box | Obsolete |
YD/T 939-1997 is obsolete. It has been replaced by YD/T 939-2005. This page sells the obsolete edition, for projects and contracts that still cite it.
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Level / Type
National · Recommended
Issue date
December 18, 1997
Implementation date
May 1, 1998
Scope
YD/T 939-1997 is the English-translated version of 传输设备用直流电源分配列柜.
YD/T 939-1997 is the Chinese industry standard "Transmission equipment with a DC power distribution box". It was issued on December 18, 1997, and took effect on May 1, 1998. It is obsolete: it has been replaced by YD/T 939-2005.
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Document preview — YD/T 939-1997
Contents
- Document data
1 Document data
Sector: Telecom (industry standard).
Date of issue: 1997-12-18.
Date of implementation: 1998-05-01.
Status: obsolete, replaced by YD/T 939-2005.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
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YD/T 939-1997
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