Introduction Electronics are very important to a variety of marine pursuits, including navigation, communication, propulsion, and a variety of other on-board operations. However, the sea environment has its own unique challenges when it comes to electromagnetic compatibility (EMC). Electromagnetic interference, often known as EMI, poses a risk to the equipment on board a ship since it may be broug...
Portable fans and window fans Other than as described in 9.2.2, a moving part that causes a risk of injury to persons shall be guarded or enclosed. A moving part such as a rotating grille, rotating air deflector driven by an airstream, or an impeller is not required to be guarded when the moving part complies with all of the following applicable requirements: a) When motor driven, the impeller: 1)...
Assembly Security Test A flush receptacle having a 5-15R,5-20R,6-15R, or 6-20R configuration is to be mounted in the test fixture described in Figure 124.1, and 50 lbf (220 N) is to be applied, as shown in Figure 124.2, for a period of 10 s by means of a push-out tool inserted into the slots of the receptacle. The push-out tool required for configuration 5-15R is to be as shown in Figure 124.3. Re...
Introduction Electronic components are often put through their paces in today’s fast-paced technological world, where they are exposed to a wide range of environmental conditions that might have an effect on their performance and dependability. Vibration is one such phenomenon that may result from anything from traveling to operating machines. Manufacturers and researchers use environmental ...
Introduction Vehicles’ resistance to wear and tear, security, and efficiency are all negatively impacted by corrosion, making it a major problem for the auto industry. Due to the wide range of environments to which automotive parts are subjected, comprehensive corrosion testing is essential before they can be relied upon. Corrosion resistance of automotive materials and coatings may be deter...
Lighting is an indispensable part of human life. It can not only provide light, but also has an important role in shaping the environment, improving work efficiency, and promoting human health. In order to ensure that the quality and performance of lighting products meet international standards, Lighting Research Center has formulated a series of lighting standards, including the LM-82 standard. T...
8.4 Limitation of voltage, current or energy of IEC60601-1 8.4.1 PATIENT CONNECTIONS intended to deliver current The limits specified in 8.4.2 do not apply to currents that are intended to flow through the body of the PATIENT to produce a physiological effect during NORMAL USE. SMT 1213C_AL 8.4.2 ACCESSIBLE PARTS and APPLIED PARTS a) The currents from, to or between PATIENT CONNECTIONS shall not e...
Introduction Goniophotometry is a powerful method that accurately measures and characterizes the distribution of light inside a specific interior environment because to its ability to measure light scattering. Goniophotometry is helpful for illuminance mapping, which involves the measurement and depiction of the lighting conditions in different regions of a given location. This may be accomplished...
Introduction The use of RFID systems, which use radio waves to identify and track objects, has spread across many sectors because of the advantages they provide. The performance and operating range of RFID systems, however, may be severely impacted by electromagnetic interference (EMI). Here, we’ll discuss how EMI test receivers may help improve RFID systems’ efficiency and reach. Thes...
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