General of insulation piercing connector(IPC) ■　Piercing connector,simple installation,need not strip the cable coat. ■　Moment nut,piercing pressure is constant,keep good electric connection and make no damage to lead. ■　Self-seam frame,wetproof,waterproof,and anti-corrosion,extend the using life of insulated lead and connector. ■　Adopted special connecting tablet,apply to joint of Cu(AI)and Cu(AI) or Cu and AI. ■　Small electric connecting resistance,impulse current can be up to 15kA. ■　Special insulated case body,resistance to illumination and environmental aging,the insulation strength can up to 6kV. ■　Arc surface design,apply to connection with the same(different)diameter,wide commection scope(1.5mm^2-240mm^2). Performance testing ■　Mechanical performance: the grip force of the wire clamp is 1/10 bigger than the break force of the lead. It comply with GB2314-1997. ■　Temperature rise performance: under the condition of big current,the temperature rise of connector is less than that of connection lead. ■　Heat circle performance: 200times per second,100A/mm^2 big current overload,the change of connecting resistance is less than 5%. ■　Wetproof insulation performance: under water for 30cm,input over 3.5kV voltage for 1 min,no break out. ■　Resistance to corrosion performance: under the condition of SO2 and salt fog,it can do three times of fourteen days circle testing. ■　Environmental aging performance: under the circumstance of ultraviolet.radiation,dry and moist,expose it with change of temperature and heat impulse for six weeks.