8. Protection of Users-Accessibility of Uninsulated Live Parts and Moving Parts-and User Servicing 8.1 The requirements in 8.2-8.17 apply only to low voltage parts that are accessible to the user and are isolated from medium voltage circuits. See 8.18 for requirements for medium voltage parts and low voltage parts that are not isolated from medium voltage circuits. For protection of service person...
Lighting fixtures play a crucial role in the field of lighting. To ensure the lighting effect and quality of the fixtures, it is necessary to test and evaluate their light intensity distribution. This article will introduce the methods and steps of using a Goniophotometer for luminous intensity measurement and ies testing. A goniophotometer is the main measuring device for testing the photometric ...
With the increasing number of incidents of interior material combustion in cars, ensuring the safety of the interior has become an important issue. This article introduces an advanced Flammability Test Apparatus for Burning Tests and Flammability Tests to ensure the safety and reliability of automotive interior materials. In recent years, incidents of interior material combustion in cars have occu...
Probe Test A tamper-resistant receptacle shall not permit contact to be made between the probe shown in Figure 139.1 and Figure 139.2 and any live part of the receptacle through the outlet slots when tested as described in this section. Twelve previously untested devices are to be used for this test. The probe shown in Figure 139.1 is to be applied to each of the outlet slot openings of the recept...
With the popularity of smart devices and increasing demands for waterproof and dustproof features in devices like smartphones and watches, waterproof and dustproof technologies have received more and more attention. In the market, the commonly seen waterproof and dustproof ratings are IP68 and IP65. In this article, we will explore the differences between IP68 waterproof and dustproof tests and IP...
Colorimeter, also known as chroma meter or portable colorimeter, is a color measurement device used to measure color differences in objects, capture and evaluate colors, and plays an important role in color control programs. Brands and designers use them to specify and communicate colors, while manufacturers use them to monitor color accuracy throughout the entire production process. Chromatic ab...
General conditions for type testing All tests shall be type tests Unless otherwise specified in this part of BS 1363 the socket-outlets shall be tested as delivered by the manufacturer or responsible vendor and under normal conditions of use, at an ambient temperature of 20 °℃ ±5 °℃, after being conditioned at normal laboratory temperature and humidity levels for at least 4 days. Unless oth...
Introduction An integrating sphere is a spherical device used to measure the optical properties of materials. It is a hollow sphere coated with a highly reflective material on the inside surface. The sphere is designed to uniformly distribute light from a source to the sample and collect the reflected light from the sample. Integrating sphere are used in a wide range of applications, including lig...
The ozone aging test chamber is suitable for temperature resistance testing of non-metallic materials, as well as ventilation aging testing and inspection of electronic component parts and molten goods. It can be used to vulcanize rubber products such as rubber materials, thermosetting plastic vulcanized rubber, cable insulation sheaths, and other products, exposed to closed type under static ten...
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