The grip force of the wire clamp is 10 bigger than the break force of the lead.t comply with GB2314-1997.
Temperature rise performance:
Under the condition of big current,the temperature rise of connector is less than thatof connection lead.
Heat circle performance:
200 times per second,100A/mm2 big current overload,the change of connection resistance is less than 5%.
Waterproof 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 ultravioletradiation,dry and moist expose it with change of temperatureand heat impulse for six weeks.
Low temperature installation test:
Connector and cable cooled down in a freezeror cdimate chamber below10'C screw the nut untlcontact occurs.
Mechanical strength test of body:
Bol is tighteneduntil the nut shear of in the defned limits and the value will be recorded change theinsert in the electronically torque moment key to a bigger one ,tighten the bolt with more than 1times of the max.Torque moment the bodyshould not crack.
Arrester Routine Tests:
Physical lnspection:Every molded ubber part block.wrap module,brackets and completed unit is visually examined to reject defectiveproducts.
AC Reference Voltage Test:This test measures the voltage once a predetermined maximum peak current is reached.Partal DischargeTest: This test ensures that the partial discharge level of the arrester does not exceed a levelof 10 pC.
Tested on individual blocks.
Arrester Type Tests:
Testing Compliant with GB/T8952-2005. lncludingInsulation withstand tests on housing Residual voltage tests Long-duration current impulse withstand Operating votage testsShort circuit current tests Internal partial discharge tests.
Higher interrupt capacities:
By using a copper arc-shortening rod attached to the dome nut inside the top of the fuse tube,lowering the fuse link, higher interrupt ratingsare obtainable.lt is necessary to use fuse links with removable button heads when using an arc-shortening rod.
Cutouts are available for use under various pollution conditions.Units are available in 245mm to 870mm,other creepage distance areavailable on request.
Extra Corrosion protection:
All cutouts are available with components made from stainless steel and plated copper ally,to offer greater corrosion resistance forseverely aggressive environments where corrosion can become a major factor.