YD/T 940-1999 English PDF

US$489.00 · In stock
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YD/T 940-1999: Semiconductor arrester for The over_voltage protection of telecommunications installations

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YD/T 940-1999	489	Add to Cart	3 days	Semiconductor arrester for The over_voltage protection of telecommunications installations

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Basic data

Standard ID: YD/T 940-1999 (YD/T940-1999)
Description (Translated English): Semiconductor arrester for The over_voltage protection of telecommunications installations
Sector / Industry: Telecommunication Industry Standard (Recommended)
Classification of Chinese Standard: M40
Word Count Estimation: 14,135
Date of Issue: 4/24/1999
Date of Implementation: 3/11/2000
Older Standard (superseded by this standard): YD/T 940-1997
Adopted Standard: ITU-T K.28-1993, NEQ
Summary: This standard specifies the communication device over-voltage protection is defined semiconductor, product type, technical requirements, test methods and inspection rules and signs, packaging, transportation, storage and other rules. This standard applies to communications switching system in the first stage overvoltage protection semiconductor use, the user can also refer to the use of the terminal. This standard does not involve semiconductor dimensions.

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