The full name of IEC 61000-4-5-2014 is ELECTROMAGNETIC COMPATIBILITY (EMC) –Part 4-5: Testing and measurement techniques Surge immunity test. This part of International Standard has been prepared by subcommittee 77B: High frequency phenomena, and IEC technical Committee 77: Electromagnetic compatibility. The following is the original content of IEC 61000-4-5-2014. This part of IEC 61000 relates ...
The full name of IEC60335-1 is Household and similar electrical appliances-Safety. This part of international standard IEC 60335-1 has been prepared by IEC technical committee 61: Safety of household and similar electrical appliances.The following is the original content of IEC60335-1- General Requirements. Scope This International Standard deals with the safety of electrical appliances for househ...
The full name of IEC 60695-11-3 is Test flames – 500 W flames –Apparatus and confirmational test methods. It has been prepared by IEC technical committee 89: Fire hazard testing. We will introduce the IEC 60695-11-3 4.4.1 Requirements. Requirements A standardized 500 W nominal test flame, according to this method, is one that is produced– using hardware according to Figures A.1 and A.2,– s...
The full name of CIE 177_2007 is Color Rendering of White LED Light Sources. It was prepared by CIE Technical Committee 1-62 of Division 1 “Vision and Colour” and has been approved by the Board of Administration of the Commission Internationale de I’Eclairage for studty and application, Now We will introduce the CIE 177_2007 Summary. This Technical Report reviews the applicability of the ...
Application Field: The salt spray test machine is also called the salt spray test chamber, the full name is the salt spray test chamber, which is mainly used to test the corrosion resistance of the samples. At present, it is widely used in the aerospace industry, automotive electronics, electronics and electrical, mobile phone digital, plastic products, metal materials and other industries to test...
Many customers have purchased LISUN GDJS Walk-in environmental chamber , but they will not use them frequently after purchase. It often needs to be idle for a period of time after the test, and continue to be used when they need to do test. Therefore, how to maintain the high and low temperature humidity test chamber when it is idle for a long time? The high and low temperature test chamber that h...
ISO is the worldwide union of national standards. The international standard ISO 9227 has been developed by the ISO/TC 156 Metals and Alloys Corrosion Technical Committee. There are many factors affecting metal corrosion. A single salt spray resistance cannot replace the performance of other media, so this standard cannot be used as a direct guide to the corrosion resistance of the tested material...
The oscilloscope is divided into a digital oscilloscope and an analog oscilloscope. With the development of technology, the requirements for test accuracy have been improved, and the analog oscilloscope has gradually been eliminated. Digital oscilloscopes basically support multi-level menus and can provide users with multiple choices. Also with storage, the most important indicator of a digital os...
1. Introduction of flicker parameter Flicker (light source flicker) means that the light output of the lighting source fluctuates with a certain frequency. At present, the international research results on strobe include IEEE std1789, IEC TR61547, CIE TN 006, etc. 1.1. Flicker percentage and flicker index in IEEE std1789 The flicker index refers to the area above the average light output line in a...
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