Sales slip insulation pad manufacturers shipped Hebei force into high-voltage electrical equipment Limited mainly adapted to many industries in aerospace, aviation, automotive, marine, tunnels, bridges, buildings, stadiums reach of electronic, electrical, pharmaceutical, chemical, mining substation . I supply a variety of insulation pads, special requirements for acceptable custom. Factory direct supplier obvious price advantage, you and the power of choice colleagues procurement. Our products are in strict accordance with national standards, inspection every year, can provide quality inspection report. Well-known brand, the customer is assured products. Contact: Li Tel: 0311-68070362 Mobile: 13315996116 QQ: 918797219 welcome to inquire! li678cheng insulation pads Quality: Appearance: scarring or uneven, the depth or height must not exceed the pad thickness tolerance; Bubble: per square meter, the area is not in 1cm2 of air bubbles not more than 5, between any two bubbles is not less than 40mm ; impurities: The depth and length does not exceed the pad thickness not less than 40mm; edge uneven or spongy: width not exceeding 10mm, a length of no more than 1/10 of the total length of the pad; crack: not allowed insulation pads Specifications (1 ) in accordance with the voltage level: 5kv insulation pads, 10kv insulation pads, 15kv insulation pads, 20kv insulation pads, 25kv insulation pads, 30kv insulation pads, 35kv insulation pads; (2) be divided by color: black insulation pads, red insulation pads, insulation pads (3) can be divided according to the thickness: 3mm insulation pads, 5mm insulation pads, 6mm insulation pads, 8mm insulation pads, 10mm insulation pads, 12mm plastic insulation mat. Factory test: every piece of insulation pads factory, are in strict accordance with the national electrical safety regulations pressure test. First insulation rubber plate with a damp cloth or metal foil bunk test, and should be small 200mm, continuous and uniform boost to a predetermined voltage value than the measured around the insulation pads, 1min, to observe whether the breakdown phenomenon, if not hit wear, the test passed. Sample segmentation test, two test edge to overlap.