JN-LMD-3048 Calibrating Device for
Spark Tester
This device is designed according to standards of
EN50356:2002、
PM 451E/PM 452 E 2007-02-01：
Test Instruction for the Factory
Surveillance of Rubber-insulated Cables according
to DIN VDE
0282 Part 1 and GB/T3048.9、GB/T3048.15 、GB\T 26873-2011 to detect the sensitivity and stability of spark tester.
1、A usual construction of a failure
simulator has a needle tip and a metal plate or a metal base (shoe).
2、One of these elements has been mounted
on the rotating spindle while the other one has been fixed that during the turn
of the spindle a discharge distance develops.
3、The discharge distance between tip and
plate has to be fixed to (0,25 ± 0,05) mm.
4、The measurements of the plate and
turning speed have to be chosen in that way that there is a gap for the
requested maximum period of 0,025 s (at AC) or 0,000 5 s (at DC) having a
maximum repetition rate of 1 s.
5、The needle tip is formed, from a
chromium-plated steel element having a diameter of 1,0 mm and an axis length of
3,75 mm. The radius of the tip is smaller or equal to 0,03 mm.
6、The peak angle is not above 16°.
Calibrating Device for Spark Tester\Calibrating Device for Spark Tester\Calibrating Device for Spark Tester\Calibrating Device for Spark Tester\Calibrating Device for Spark Tester
Leave a message for product