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Are
designed for checking the quality of PVC coated wires during
manufacturing at shop floor. The PVC wire is passed through brass ball chains
which carry high voltage. If any pin hole comes in PVC, a spark develops
and electro magnetic counter counts the fault. The spark tester is
necessary for every cable manufacturing unit.
The
equipment uses a high frequency oscillator circuit for rising frequency
to search the fault at low leakage current and signifies that as a
fault, he fault is displayed to the operator by means of a visual
indicator and audible. The equipment can test a variety of cable at
various voltages for which KV setting & sensitivity setting is
provided.
The
different Spark Testers manufactured are of
Power
Frequency (50Hz)
High
Frequency (500 Hz/3000Hz-5000Hz)
The
Power Frequency Spark Tester is a Conventional Spark tester, being used
by wire and cable manufacturers, since the start of cable manufacturing.
These spark testers hold the efficiency gradient of approximately 85%.
They leave a burn mark on the cable/wire at the point of fault, which
makes it easier to locate and isolate / mend the fault.
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