Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

YD/T 637-2024 English PDF

YD/T 637: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
YD/T 637-2024RFQ ASK 3 days (DC-DC conversion equipment for communication) Valid
YD/T 637-2006719 Add to Cart 3 days DC-DC Conversion Equipment for Telecommunication Obsolete
YD/T 637-1993399 Add to Cart 3 days (Communication with the DC - DC conversion equipment) Obsolete


Basic data

Standard ID: YD/T 637-2024 (YD/T637-2024)
Description (Translated English): (DC-DC conversion equipment for communication)
Sector / Industry: Telecommunication Industry Standard (Recommended)
Date of Issue: 2024-12-10
Date of Implementation: 2025-04-01
Older Standard (superseded by this standard): YD/T 637-2006
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the composition, classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of DC-DC conversion equipment for communications. This standard applies to DC-DC conversion equipment for communications with an input voltage of less than 1000V. For products with specific standards, refer to their specific standards. For DC-DC conversion equipment with voltage levels not listed in this standard, it can be used as a reference.
Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of YD/T 637-2024_English be delivered?

Answer: Upon your order, we will start to translate YD/T 637-2024_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 637-2024_English with my colleagues?

Answer: Yes. The purchased PDF of YD/T 637-2024_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 637-2024?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YD/T 637-2024 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.