Low water absorption GPO-3 sheet used in Switch cabinet
Product Introduction:
GPO-3 laminated sheet was made of fiberglass and polyester resin the fiberglass was impregnated in polyester resin with the aluminium hydroxide material and then press under the high temperature & pressure by machine. It has the performance of very low water absorption , the water absorption is below 0.005% .
As we known , water will caused insulation performance lower . It will damage the electrical equipments once the insulation material with higher water absortion . For example , metro is always underground . Underground means humidity range is widely . If the property of absorption resistance is not good enough , it will be very easy fault and even scrap for the whole electrical equipment . As soon as we know , the main filler material of GPO-3 sheet are calcarea carbonica or aluminium hydroxide . Our GPO-3 material uses aluminium hydroxide as the filler material although production cost is higher than calcarea carbonica , but the warter absorption is lower , it will more safety when the equipment running In This Working Environment .
Feature of product:
Application of product:
As we know , it is very important to rail traffic of the safety , Railway traffic is a highly intensive place for people , arc performance is very very important , is the arc is not good enough , the material will be break down by the arc , it will cause the fire hazard . In other way , the low smoke , non-poisonous and good fire resistance are top important performance to ensure safety running. Actually , most of the train manufacturers in China have already contacted with us to supply this material , we have so rich experiences on it .