86 755 2523 4088

service@agccert.com

Domain name:agc-cert.com change to agccert.com;cn.agc-cert.com change to agccert.cn

Can we help you find something?

Testing

Introduction on Power Adapter Safety Test Release Time:2022-01-05

As we all know, power adapter plays an important role in our life. Without it, many devices cannot work normally. Therefore, it is essential to ensure the safety of power supply and provide consumers with a safe and comfortable environment.



Generally, we only pay attention to the appearance of power adapter and whether it can make equipment work normally. We hardly take care of others. However, for power adapter, how can we judge whether it is qualified or unqualified? How do we test its safety capability? What are the test standards and test items for adapters? Here is some detailed information.

 

Common Definition

 

Adaptor

Power adapter is a device equipped with a transformer and an electronic circuit, which convert electrical power into single or multiple power outputs. It also provide power for Class III equipment (includes charging for built-in battery) to make them work normally.

 

Battery Charger

Electronic device used for battery charging.

 

Isolation Transformer

Transformer with protective isolation that is between input winding and output winding.

 

Safety Isolation Transformer

It is isolation transformer which provides SELV (Safety Extra Low Voltage) or PELV (Protection Extra Low Voltage).

 

Safety Extra Low Voltage (SELV)

Ultra-low voltage of a circuit that uses a device like safety isolation transformer to isolate from the grid power supply

 

Test Standards

 

Power   adapters for audio, video, information and communication technology equipment

IEC/EN 62338-1, UL 62368-1

Power   adapter for household appliances

IEC/EN 60335-1

Battery   charger

IEC/EN 60335-2-29

Linear   power supply

IEC/EN 61558-2-6

Toy power   supply

IEC/EN 61558-2-7

Switching   power supply

IEC/EN 61558-2-16

LED   lamps power supply

IEC/EN 61347-2-13

Electronic   power supply for other lamps

IEC/EN 61347-2-2

Measuring   instrument power supply

IEC/EN 61010-1

Medical   equipment power supply

IEC/EN 60601-1

Uninterruptible   power supply (UPS)

IEC/EN 62040-1、UL 1778

Class   II power supply and battery charger

UL 1310

Non   Class II power supply and battery charger

UL 1012

Power   adapter for LED lamps

UL 8750

 

 Test items


Marking   and other information

Electric   shock protection

Input   and output test

Fever

Short   circuit and overload protection

Mechanical   strength

IP   rating test

Insulation   resistance

Dielectric   strength

Leakage   current

Structure

Components

Internal   line

Power   cord test

Protective   grounding

Screws   and connections

Creepage   distance, electric clearance

Heat   resistance, flame resistance and tracking resistance

Anti-rust


 



Recommended Reading

Introduction on Household Appliances Safety Test

Household appliances mainly refer to various electrical and ...

Power battery Test

New energy vehicles is the car to use the power source which...

Electric Portable Bikes Test

Electric Portable Bikes and battery test standards

Energy storage battery Test

In recent years, energy storage and power battery technologi...

Introduction about Tensile Test

Tensile test is a test to determine a series of characterist...

Consult us

Does the article solve your problem

Please select the unresolved reason