What is electrical safety testing? Common standards for safety regulation test items

Date：2022-12-29 16:02:28Views：678

Electrical product safety detection is one of the key components of product safety detection in modern society. Electrical safety testing is not only to meet the new recognized standards, but also to protect the product design object and its use environment. The equipment used to certify and verify the electrical safety of products has also changed over time. This technology improves the performance, accuracy, reliability, operator protection and data capture of test results and key product information. The improvement of testing equipment makes safety testing simpler and more effective for manufacturers.

What is electrical safety testing (safety regulation testing)?

The purpose of testing the electrical safety of electrical and electronic products is to identify potential risks of electric shock to users. Assessing the electrical safety of products usually includes the following tests:

1. High voltage test (dielectric withstand test) - to measure the ability of electrical products to withstand the high voltage applied between the product circuit and the ground.

2. Leakage current test - to evaluate whether the current flowing between AC power supply and ground exceeds the specified limit.

3. Insulation resistance test - quality of electrical insulation used for calibration.

4. Ground continuity test - ensure a smooth path between all exposed metal surfaces and power system ground.

In addition to pre market testing and certification, manufacturers of electronic and electrical products must also conduct production line testing. Depending on the certification requirements, line testing may include some or all of the tests required for certification.

Common standards for electrical safety testing:

1. UL 60335-1 and IEC 60335-1: Safety of Household and Similar Electrical Appliances

"This International Standard relates to the safety of household and similar electrical appliances. The rated voltage of its single-phase electrical appliances does not exceed 250 V, and the rated voltage of other electrical appliances does not exceed 480 V. Equipment that is not suitable for ordinary household use but may pose a danger to the public, such as appliances used by laymen in shops, light industries and farms, fall within the scope of this Standard. Examples of such appliances are catering equipment, industrial and commercial cleaning appliances, and hairdressers Appliance. To the extent practicable, this standard deals with common hazards caused by appliances encountered by all people inside and outside the home. “

2. UL60950 and IEC60950-1: General Requirements for Security of Information Technology Equipment (ITE)

"This standard is applicable to information technology equipment powered by main power supply or battery, including electrical commercial equipment and related equipment, with rated voltage not exceeding 600 V. It is installed in accordance with Canadian Electrical Code, CSA. C22.1; CSA C22.2 No. 0; National Electrical Code, NFPA 70; and National Electrical Safety Code, IEEE C2“

ITE is one of the commonly used products today. All of these products are sometimes associated with voltage potentials that may present a risk of electric shock. When connected to a voltage high enough to cause danger to the operator, they must be certified and verified for safety. Some of the tests required for certification and verification are dielectric withstand tests (high voltage tests), insulation resistance tests and leakage current tests.

3. IEC 60065-1: General safety requirements for video/audio equipment

"This International Safety Standard applies to electronic devices designed to receive, generate, record or reproduce audio, video and related signals from power sources, power supply devices, batteries or remote power feeds, respectively. It also applies to devices specifically used in combination with the above devices. This standard mainly covers devices used for household and similar general purposes. It also includes commercial and professional devices, which can also be used for public gatherings Places such as schools, theaters, places of worship and workplaces. Specialized equipment intended to be used as described above will also be covered unless specifically falling within the scope of other standards and can be evaluated in accordance with the requirements of this standard or UL 1419. This standard only covers the safety aspects of the above equipment; It does not involve other matters, such as style or performance. This standard applies to the above equipment if it is designed to be connected to a telecommunications network or similar network, such as through an integrated modem.

4. IEC 60601-1: General safety requirements for medical electrical equipment

"This standard is applicable to the safety of medical electrical equipment (as defined in 2.2.15). Although this standard mainly relates to safety, it contains some reliable operation requirements related to safety. Safety hazards caused by the expected physiological functions of the equipment covered by this standard are not considered. Unless explicitly stated in the text, the appendix in this standard is not mandatory“

The company has been developing more electronic devices to support the medical industry due to the extended life span, global diseases and continuous research on new treatments and procedures. These products must be evaluated for use. Some medical devices can be used near patients, and some devices can actually be electrically connected to patients, such as EKG and EEG monitors.

The above is the relevant content of the "electrical safety test" brought about by the Chuangxin test. I hope it can help you. We will bring more wonderful content later. The company's testing services cover: testing and verification of electronic components, IC authenticity identification, product design material selection, failure analysis, functional testing, factory incoming material inspection, tape weaving and other test items. Welcome to call Chuangxin Testing, we will serve you wholeheartedly.