barrier terminal block content and methods of detection

Current terminals connected technologies, including screw connection, spring connection, fast connection without stripping the three technologies, which represents the development trend of global connectivity technology. Rich variety of products are widely used in various industries on electrical equipment: electric power, petrochemical, automation, machinery, ships, railway transport, communications, building automation and so on. Terminal modular barrier terminal block are combined to form a different wiring from the application technique, should be widely accepted worldwide. There plug in terminal block  are music to analyze common problems on modular terminal inspection job. Modular terminal blocks test content and side 1) flag should model specifications, voltage, and the relevant certificates and other signs, and should be clear and correct. Refer to the model. 2) the appearance of colors to be consistent with the model, color uniformity, there should be no bubbles, scratches, damage, rust and other negative phenomena 3) barrier terminal block structure size measuring its height with a caliper, mounting holes, etc., should be consistent with the model structure size and installation requirements, using the wiring terminal screws must be plated, and subsequently installed smoothly, and can not slip off the screw phenomenon. All metal parts are not allowed to rust oxidation and other undesirable phenomena. Wire connection requires the use of brass studs, available magnet test, you can determine when the two do not attract as brass. 4) barrier terminal block the ability to take an examination (test terminals are specified) single wire diameter and a minimum diameter of the largest trials were within the range of bare 8-10mm, access terminals in the locking screw, use of 15N force could not pull the power cord, and swing up and  WISDOM mini usb connector down or left and right wires 5 batteries will not be cut off at the bottom of the terminal screw threads, wires or removal without incision shaped wire visually.
5) flame test (glow wire test) flame rating of 94UL-V0. Insulating material retaining live parts and external parts of insulating material providing protection against electric shock should be able to withstand the following tests: glow-wire test 650 ℃ in no visible flame, the flame goes out without any ongoing or after removal of the glow-wire in the 30S, combustion or melting, etc. should not fall under the level laid 200mm ± 5mm sample of tissue paper on fire or cause burning pine boards. Each batch sampling 1-3Pcs. 6) Heat test (ball pressure test) Isolation parts of insulating material Insulating material of the outer member and the fixed live parts should have sufficient heat resistance. Test Method: The test conditions for heating the chamber 125 ℃ heat resistance test, the surface should be placed in the test  dvi adapter component level, a steel ball with a diameter of 5mm 20N pressurize the surface of the test piece, if this surface is curved in the test , should be supported in the spherical part of the pressure, the ball is removed from the samples one hour, the sample was immersed in cold water to cool 10S, measurement of the indentation of a diameter not exceeding 2mm. Each batch sampling 3-4Pcs.