HTW Lab - we can meet regulatory requirements and ensure your household appliance products' safety, especially for the hair care equipment. Hair care household appliances include hair straightener, hair dryer, hair clipper/hair trimmer, electric shaver etc. Most of these products contain electric motors and heating devices. In the process of product safety testing, the warning requirements for heating and motor rolling locked rotor are strict.
HTW Lab is an IECEE CB Scheme Test Laboratory (CBTL), participating in IECEE CB Scheme. The CB Scheme is an international program created by the International Electrotechnical Commission for Electrical Equipment (IECEE).
Standards We Test To
HTW Testing and Certification Solutions.
CMA, CNAS (17025), AQSIQ, IEC CBTL, US UL, A2LA, FCC, TIMCO, CEC, DOE, Germany TUV, EMCC, Japan VCCI, Norway DNV, NEMKO, UK ITS, Canada IC, Hong Kong EMSD and other qualifications have been obtained.
1. The reason of radiation test failed
There are many reasons for EMC radiation test failed according to the standard, such as interface filtering, cable design, grounding, shielding etc.
Generally speaking, it is the problem of PCB design.
For TCB, a multilayer board is a recommended choice, as it can reduce impedance.
The circuit on the PCB board is required to be straight and short.
2. The problems of product information
Label, Schematic, User manual, CDF/BOM, PCB layout
Test items (Safety)
Input Current Test
Label Wiping Test
Energy Level Test
Current-Limiting Circuit Test (LCC)
Power-Limiting Test (LPS)
Ground Continuity Test
Temperature And Humidity Test
Impact And Other Mechanical Stress Tests
Ball Pressure Test
Normal Temperature Rise Test
Touch Current Test
Withstand Voltage Insulation Test
Component Failure Test, etc.
Test items (EMC)
Voltage Fluctuations And Flicker Test
Static Electricity Test
Power Frequency Magnetic Field Test
Voltage Sag Test, etc.
Test items (others)
1. For external power supply:
ERP, CEC, DOE, NRcan, MPES, China Energy efficiency
2. For battery charger:
Electromagnetic Compatibility (EMC)
CISPR 14-1 / EN 55014-1; EMC emission requirements for household appliances, electric tools and similar apparatus
CISPR 14-2 / EN 55014-2; EMC immunity requirements for household appliances, electric tools and similar apparatus
IEC/EN 61000-3-2; harmonic current emissions
IEC/EN 61000-3-3; Fluctuations and Flickers
EN 50428; household building controllers