How to use Megohmmeter correctly Measure insulation resistance Measure the insulation resistance with a megohmmeter. Pay attention to the following points: (1) Before testing, remove the resistance of the tested power cable and all outbound wires, ground them and discharge them. The discharge time ....

GC9790II series gas chromatograph is a new generation product developed by Fuli Company. It optimizes the structure and performance on the basis of GC9790 gas chromatograph. It adopts computer control system and large screen display in English and Chinese to achieve control and analysis on ....

Problems that may be encountered when installing the distribution box 1 Incorrect selection or improper selection according to the drawings. 2 The iron of the distribution box box is too thin, and the rigidity is poor, causing serious deformation of the shell and the facade, and the closing gap is ....

Recently, the Water Supply and Drainage Division of the District Water Affairs Bureau learned that water complaints were basically concentrated in the southwest of Tongzhou, such as Xinhualian and Tsui Ping. This is because Tongzhou District's water resources are located in the north, ....

Replace brake pads by mileage. Brake pads and brake discs (drums) have a service life and must be replaced when they are worn to a certain degree. Normal use in normal city driving, their life span is about 50,000 kilometers, and the life of brake pads is a ....

Recently, in the joint efforts and efforts of the local marine affairs department of Pingjiang County and the vocational and technical schools of Pingjiang County, the Hunan Provincial Maritime Safety Administration officially approved the Pingjiang County Vocational and Technical School to carry o ....

Shengda and Energy Technology Services (ESCO) and lighting operators announced the launch of the new Intelligent Lighting Control and Management System (LCMS), which flexibly adjusts the lighting system for medium and large lighting locations, including street lighting, parking lot lighting, storag ....