Heaters are commonly used household appliances in winter. To enter the European and American markets, products need to obtain CE certification. In heater CE certification, the LVD directive (Low Voltage Directive) and EMC directive (Electromagnetic Compatibility Directive) are two important certification requirements, focusing respectively on the electrical safety and electromagnetic compatibility of heaters.

Introduction to CE Certification

CE certification is a pass to enter the EU market, indicating that the product meets the requirements of relevant EU directives and harmonized standards. For electrical products such as heaters, hand warmers, heated clothing, and electric blankets, it is necessary to meet requirements in areas such as EMC (Electromagnetic Compatibility) and LVD (Low Voltage Directive).

EMC Certification (EN55014 Testing)

The EMC directive requires that all electrical and electronic equipment sold in the European Union must meet the basic requirements of electromagnetic compatibility to prevent electromagnetic interference between devices as well as between devices and wireless communication services. For heaters, the EMC directive mainly focuses on the following aspects:

1. Electromagnetic emissions: Limit the electromagnetic radiation generated by the equipment to ensure that it does not interfere with other devices or radio communication services. Relevant standards include EN 55014-1 (Electromagnetic compatibility. Requirements for household appliances, electric tools, and similar apparatus. Part 1: Emission), etc.

2. Electromagnetic immunity: Ensure that the equipment can continue to operate normally when subjected to external electromagnetic interference. Relevant standards include EN 55014-2 (Electromagnetic compatibility - Requirements for household appliances, electric tools, and similar apparatus - Part 2: Immunity - Product family standard), etc.

3. Harmonic currents and voltage fluctuations: For devices with large input currents, they must also comply with standards such as EN 61000-3-2 and EN 61000-3-3 to limit harmonic current emissions and voltage fluctuations.

Test Objective: To ensure that the product can operate normally in its electromagnetic environment without causing intolerable electromagnetic interference to anything in that environment, while also ensuring that the product itself has sufficient immunity to electromagnetic interference from that environment.

Specific Test Items:

Interference Power: Measure the interference power generated by the product to the power grid under normal operating conditions.

Interference Voltage: Detect the interference voltage generated by the product at the power supply terminal and other ports.

Radiated Interference: Assess the intensity of electromagnetic radiation emitted by the product into the surrounding space during operation.

Immunity Tests: Including electrostatic discharge immunity, radiated radio-frequency electromagnetic field immunity, fast transient burst immunity, etc., to check whether the product can operate normally when subjected to various electromagnetic interferences.

LVD Certification (EN60335 Testing)

The LVD Directive is a legal requirement in the European Union for electrical equipment designed for specific voltage limits, aimed at ensuring the safety of these devices during use. For heaters, the LVD Directive mainly focuses on the following aspects:

1. Voltage range: applicable to electrical products with AC voltage between 50V and 1000V and DC voltage between 75V and 1500V.

2. Safety rules: including protection against hazards caused by mechanical factors, as well as the electrical safety performance of the equipment under normal use and fault conditions.

3. Testing standards: heaters usually need to comply with standards such as EN 60335-1 (Safety of household and similar electrical appliances, Part 1: General requirements) and EN 60335-2-30 (Household and similar electrical appliances, Safety, Particular requirements for room heaters). Testing purpose: to ensure safety when using low voltage equipment and to prevent risks such as electric shock or fire caused by poor electrical insulation, improper grounding, and other issues.

Specific Test Items:

Electrical Insulation Performance Test: Check the product's insulation resistance, electrical strength, etc., to ensure that electrical insulation meets safety requirements and prevent the risk of electric shock to users.

Ground Continuity Test: Verify the effectiveness and continuity of the product's grounding device to ensure that current can safely flow to the ground in the event of an electrical fault.

Leakage Current Test: Measure the leakage current of the product under normal operation and fault conditions, keeping the leakage current within a safe range to prevent electric shock to users.

Mechanical Safety Test: Inspect the product's casing, structure, and other mechanical parts to prevent injuries to users caused by loose components or sharp edges.

Temperature Test: Monitor the temperature rise of the product under normal and abnormal conditions to prevent fires or other safety accidents caused by overheating.

Heater/Hand Warmer/Electric Heated Clothing/Electric Blanket CE Certification Process:

Fill out the application form

Send the samples

Sample testing

If the test passes, issue a draft to confirm the information

Issue the official report/certificate