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The application of electromagnetic compatibility test in GB4706.1 is analyzed

Release time:

2010-06-24 00:00

Source:

1. Introduction

The safety of household and similar electrical appliances - the general standard IEC60335-1:2001+A-1:2004 has been implemented internationally since 2004, with the use of IEC special standards have been published more than 70. Since August 2006, China will begin to enforce GB4706.1-2005(IEC60335-1:2001+A1:2004) "Household and similar electrical appliances safety general requirements". The new version of the national standard has made significant changes in many chapters, but as far as its test and verification methods are concerned, the most significant change is the addition of electromagnetic compatibility anti-interference degree test to verify the product safety characteristics in Chapter 19.

In standard GB4706.1-2005, Clause 19.11.4 (one of "Abnormal Operation" in Chapter 19 of the Region) stipulates that the following three types of appliances shall be tested against seven electromagnetic compatibility anti-interference standards.

The three types of appliances are:

1. Appliance with a switch to obtain the disconnection position by electronic disconnection;

2. Appliances with standby switch;

3. Appliances equipped with protective electronic circuits.

The standard states that "tests shall also be carried out on appliances fitted with IEC60730 electronic controls". This means that due to the IEC60730 involved in the test items, test grade, qualification grade and the whole machine assessment requirements are different, even if the electronic controller in accordance with the IEC60730 standard to pass the assessment, Also need to be assembled in the whole machine in accordance with GB4706.1-2005(IEC60335-1:2001+A1:2004) test assessment.

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