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Testing of AC/DC Power Supply Equipment



KETOP offers comprehensive testing services covering all types of AC and DC power supply products.


Applicable Product Types


DC power supply equipment of power projects、Power supply equipments for telecommunications、UPS、Inverter、AC/DC Integrated System、Battery、Insulation Monitoring Device etc.

  Testing Capability   

Environmental testing

 ■ It is capable of performing a diverse range of mechanical tests, including vibration testing, shock testing, impact testing, and drop testing, among others.

 ■ It is outfitted with environmental testing apparatus, including high-and-low temperature-humidity chambers, low-pressure chambers, dust and water ingress protection (IP) test setups, salt mist test chambers, and noise test chambers.

 ■ It is competent to perform safety-related testing items encompassing electrical clearance, creepage distance, and fire hazard testing, among others.

 ■ It is outfitted with a dedicated highly accelerated life test (HALT) chamber, which offers an ambient temperature span of -100℃ to 200℃ and a controllable temperature ramp rate with an upper limit of 100℃ per minute; additionally, it is capable of generating six-orthogonal-axis broadband random vibration, with a vibration magnitude ranging from 5 Grms to 75 Grms (inclusive).


Electromagnetic Compatibility (EMC) Testing

 ■ It is capable of performing tests including radiated emission, conducted emission, damped oscillatory wave immunity, electrostatic discharge (ESD) immunity, conducted disturbance immunity induced by radio-frequency fields, radio-frequency electromagnetic field radiation immunity, electrical fast transient/burst immunity, surge immunity, power frequency magnetic field immunity, damped oscillatory magnetic field immunity, voltage dips and short interruptions immunity, and supply voltage dips/rises testing.

New Energy Testing

 ■ It is capable of performing tests on DC power supply systems, UPS power supply systems, telecommunication power supply systems, integrated power supply systems, DC power supply modules, UPS power supply modules, telecommunication power supply modules, AC power distribution cabinets, power system monitoring devices, lead-acid batteries, insulation monitoring devices, among others.

Scope of Testing Capabilities


Environmental testing

Environmental Testing – GB/T 2423 Series

GB/T 29309-2012 Accelerated stress testing procedures for electric and electronic products-Guidance for highly accelerated life test

GB/T 2689.2-1981 Life test and acceleration life test charts--Evaluation of their Weibull distributions

Fire Hazard Testing for Electrical and Electronic Products – GB/T 5169 Series

GB/T 4208-2017 Degrees of protection provided by enclosure(IP code)

GB/T 15153.2-2000 Elecontrol equipment and systems Part 2: Operating conditions Section2: Environmental conditions (Climatic,mechanical and other non-electrical influences)

Electromagnetic Compatibility (EMC) an/ New Energy Testing

GB/T 19826-2014 General specification and safety requirements for DC power supply equipment of power projects

GB/T 7260.3-2024 Uninterruptible Power Systems(UPS)-Part 3:Method of specifying the performance and test requirements

GB/T 16821-2007 General test methods of power supply equipments for telecommunications  

DL/T 459-2017 DC power supply equipment for power system

DL/T 1074—2019 Integrated uninterruptible power supply equipment of DC and AC for power system  

DL/T 781—2021 High frequency switching rectifier module for power system

DL/T 637—2019 Stationary valve-regulated lead-acid batteries for electric power

DL/T 856-2018 Monitoring device of DC power supply and integrated power supply for electric power

DL/T 857-2004 Specification of rectification inversion equipment for battery of power plant and substation

YD/T 731-2018 48V rectifier for telecommunications

YD/T 1058-2015 High frequency switch-mode power supply for communications

YD/T 1095-2018 AC uninterruptible power systems for telecommunications(UPS)

Business Inquiries   

Contact                                        

Ming Chen 

                                   

Telephone                                        

0374-3212775/3212185 

                                     

Email                                       

chenming@ketop.cn        










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