YD/T 944-2007 English PDF

US$419.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
YD/T 944-2007: Technical Specification and Testing Methods for Surge Protection of Power Supply for Communications

YD/T 944: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YD/T 944-2007	419	Add to Cart	3 days	Technical Specification and Testing Methods for Surge Protection of Power Supply for Communications
YD/T 944-1998	279	Add to Cart	3 days	(Mine technical requirements and test methods of communication power supply)	Obsolete

Similar standards

YD/T 993   YD/T 2165   YD/T 777   YD/T 502   YD/T 939   

Basic data

Standard ID: YD/T 944-2007 (YD/T944-2007)
Description (Translated English): Technical Specification and Testing Methods for Surge Protection of Power Supply for Communications
Sector / Industry: Telecommunication Industry Standard (Recommended)
Classification of Chinese Standard: M41
Classification of International Standard: 91.120.40
Word Count Estimation: 12,121
Date of Issue: 2007-07-20
Date of Implementation: 2007-12-01
Older Standard (superseded by this standard): YD/T 944-1998
Regulation (derived from): MIIT Science [2007] No. 343
Issuing agency(ies): Ministry of Information Industry of the People's Republic of China
Summary: This standard specifies the communication power equipment, lightning definition, classification, technical requirements, test methods and inspection rules. This standard applies to Communications Authority (station) with AC power distribution equipment, oil machine control system, communication with AC uninterruptible power supplies, communications equipment and communications half rectifier rectifier with high-frequency switching devices. Integrated in the system communication power devices can be implemented by reference.

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of YD/T 944-2007_English be delivered?

Answer: Upon your order, we will start to translate YD/T 944-2007_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of YD/T 944-2007_English with my colleagues?

Answer: Yes. The purchased PDF of YD/T 944-2007_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version YD/T 944-2007?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YD/T 944-2007 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.