125 Grounding Contact Test 125.1 Grounding receptacles having a 5-15R,5-20R，6-13R，6-20R，7-15R，14-15Ror 15-15R configuration are to be subjected to the tests in this section. GNGPL SB1609A_AL 125.2 Previously untested devices are to be used. Each device is to be mounted in a flush device box, or as otherwise intended, with its face in a vertical plane. A nonmetallic faceplate is to be insta...
The ipx4 Swing Pipe Water Spray Test Equipment is a waterproof performance testing equipment widely used in electronic and electrical engineering, communication, lighting, automobile and other fields. It is designed and manufactured based on the test requirements of the international standard IPX4. This equipment is mainly used to test the waterproof performance of various product shells, verify w...
We know that there is a corresponding system for each instrument, and the colorimeter is no exception. The color measurement system of the colorimeter is also called the color system or color system, which is actually the way people organize and represent colors. In general Chinese literature, “color system” is used to be called color system. So far, there are two main methods for colo...
With the increasing awareness of environmental protection, there has been a growing concern about hazardous substances in electronic products. In order to protect consumer health and promote sustainable development, the European Union has introduced the Restriction of Hazardous Substances Directive (RoHS), which restricts the use of specified hazardous substances in electronic and electrical equip...
The spectrophotometer has high accuracy and uses the setting of the pre-positioning board, which eliminates the need to use the standard blackboard and whiteboard in the calibration process of the traditional colorimeter and colorimeter. The built-in software has powerful functions, including all necessary color equations, standard light sources suitable for different tasks, and a large number of ...
SOCKET-OUTLET CONTACTS Material Contacts shall be of a corrosion resisting metal with sufficient rigidity and durability for the intended application. Construction Contacts shall be such that they make and maintain, under normal service conditions, satisfactory electrical and mechanical contact with the pins of the appropriate type of plug. For socket-outlets intended to accommodate plugs with fla...
In the modern society where waterproofing is ecoming more ubiquitous, more manufacturers are developing consumer products with various waterproof testing equipment. The purpose is to meet the product requirements of consumers. However, what kind of waterproof testing can effectively ensure the accuracy of the products? In fact, there is not only one type of IP waterproofing, it is divided into man...
119 Retention of Plugs Test (Repeated) 119.1 General Test Pin A of UL 498 Figure 119.1 119.1.1 After completion of the Overload Test, Section 117, and the Temperature Test, Section 118, the contacts of a 1-15R.5-15R.5-20R,6-15R or 6-20R configuration receptacle, other than the flush or self-contained type, shall retain an attachment plug so that when tested as described in this section: a) A force...
General Iron or steel, plated or unplated, shall not be used for parts that are depended upon to carry current. Exception No. 1:Stainless steel may be employed for a part not subject to arcing. Exception No. 2: A steel that is corrosion-resistant (stainless) or is protected against corrosion by cadmium plating, zinc plating, or an equivalent protective coating, may be used for wire-binding nuts an...
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