Valid

JB/T 12239-2015Energy feedback aging test methods for DC power supplies (English PDF)

直流电源的回馈式老化测试方法

Preview PDF

This is a limited preview

Buy now to download the full PDF (15 pages)

Need quotation for your management?

Get a formal quotation for JB/T 12239-2015 in 30 minutes.

Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

April 30, 2015

Implementation date

October 1, 2015

Scope

JB/T 12239-2015 is the English-translated version of 直流电源的回馈式老化测试方法.

JB/T 12239-2015 is the Chinese machinery industry standard covering energy feedback aging test methods for DC power supplies. It was issued on 30 April 2015 and has been in force since 1 October 2015, as a first edition.

The document is under the responsibility of the Ministry of Industry and Information Technology. This page is published from the official record of the 2015 edition.

The figures, limits and tables the standard contains are those of the document itself, delivered in full with the English translation.

Found what you need?

Document preview — JB/T 12239-2015

National Standard of the People's Republic of China

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

1 Scope
2 Terms and definitions
3 Requirements
3.1 Appearance
3.2 Short circuit protection
3.3 Leakage current
3.4 High and low supply voltage
3.5 Variable electronic load
3.6 Ambient temperature
3.7 High temperature
4 Test methods
4.1 Test conditions
4.2 Test equipment
4.3 Test principle
4.4 Preparation of the test personnel
4.5 Appearance
4.6 Short circuit protection
4.7 Leakage current
4.8 High and low supply voltage
4.9 Variable electronic load
4.10 Ambient temperature
4.11 High temperature
Figure 1 Live ageing test system of the DC power supply
Figure 2 Diagram of the high and low supply voltage test
Figure 3 Diagram of the high temperature test

Document data

International classification (ICS): 27.16.

Chinese classification (CCS): F11.

Estimated length of the Chinese original: 8,898 words.

2 Terms and definitions

3 Requirements

4 Test methods

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Similar standards

GB 20943-2025|GB/T 46266-2025|GB 20943-2013|GB/T 32271-2015|NB/T 10296-2019|NB/T 20442.7-2017

How to Download JB/T 12239-2015

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.