electrical safety test equipment, environment test equipment, test probes, go not go gauges

For heating appliance and combined appliance: 1. Appliances normally placed on a floor or table in use, are placed on the floor and as near to the wall as possible. 2. Appliances normally fixed on a wall shall fixed on one of the walls, and as near to other wall and floor or ceiling as is likely to occur, taking into account the instructions. 3. Appliance normally fixed to a ceilling shall fixed to the ceilling, and as near to the walls as is likely to occur, taking into account in the instructions. For motor operated appliance: 1. Appliances normally placed on a floor or table in use are placed on a horizontal support. 2. Appliances normally fixed to a wall are fixed on a vertial support. 3. Appliance normally fixed to a ceilling are fixed underneath a horizontal support. Requirement for test corner: The test corner, support and installation of buit-in appliances shall be made by plywood which has about 20mm thick and be coated with dull black paint. Thermocoupl...

The draught-proof enclosure is rectangular, with a double skin on top and on at leat three sides and with a solid base, the double skins are of perforated metal, space approximately 150mm apart, with regular perforations of 1mm to 2mm diameter, occupying about 40% of whole area of each skin. It is applied to thermal test of luminaire under the conditions of normal operation and abnormal operation.  The inernal surface are painted with a matt paint. The three principal internal dimensions are each at least 900mm. There shall be a clearance of at least 200mm between the internal surfaces and any part of the largest luminaire for which the enclosure is designed (If it is required to test two or more luminaires in a large enclosure, be attention to take that radiation from one luminaie can not affect any other). There is a clearance of at least 300mm above the top of the enclosure and around the perforated sides. The enclosure is at a location protected as far as possibl...

IK coding system is to indicate the degrees of protection provided by enclosures for electrical equipment against harmful external mechanical impact, which is given by IEC62262. The code is consisted by codes letters (IK) and characteristic group numbers (00 to 10), and each characteristic group number standards for an impact value, the values as below: IK code IK00 IK01 IK02 IK03 IK04 IK05 IK06 IK07 IK08 IK09 IK10 Impact energy(J) * 0.14 0.2 0.35 0.5 0.7 1 2 5 10 20 In order to give a common standard to electrotechnical equipment, IEC60068-2-75 environmental testing regarding hammer tests mentions three kinds of tool, pendulum hammer , spring hammer , and vertical hammer . To obtain repeatable and reproducible results, the test is more depends on the details of apparatus. The choice of the test apparatus depends on the orientation of the surface to be tested and on the energy level. Not all methods can be used in eve...