Power Frequency Spark Test Machine Wire And Cable Testing EquipmentI-suntop wire and cable Testing machine20220301.pd... 1.Description of Power Frequency Spark Test Machine Wire And Cable Testing Equipment The power frequency spark tester is actually a kind of cable
or wire weak point detection instrument. It periodically loads the
set voltage value on the insulated wire according to a certain
rule, and the conductor part is grounded, thus forming a voltage
difference between the conductor and the insulating surface.
Therefore, it is possible to detect whether the insulating layer is
defective. The tested cable passes through the high voltage pole of
the bead chain, and the test voltage is generated by the power
frequency high voltage transformer. When there is a defect in the
cable insulation, a breakdown occurs, that is, a high-voltage
sparkover short circuit occurs in the output of the high-voltage
transformer. The short-circuit current forms a loop from the output
end of the high-voltage transformer via the electrode-insulation
defect, the cable core, and the earth-high-voltage transformer.
Therefore, both the spark tester and the wire core must be well
grounded, otherwise the short-circuit current will not be able to
form a loop, and may result in a dangerously high voltage on the
spark tester housing or the cable core.2.Features for Power Frequency Spark Test Machine Wire And Cable Testing EquipmentThis series of products are beautiful in appearance, easy to use,
compact in structure, strong in mechanical load, and equipped with
mechanical grounding and safety protection springs. The key part of the high-pressure chain is made of stainless steel,
full copper beads, more durable and anti-corrosion Excellent breakdown performance, no error in breakdown times, high
sensitivity, strong anti-interference, obvious breakdown point,
automatic counting and alarm when breakdown The high-voltage transformer adopts epoxy resin footnote, which has
the characteristics of moisture-proof, anti-interference, etc. It
can carry water detection and has a self-checking device. Sound and light alarm function, can set remote online control, stop
the test after the breakdown and alarm, connect 3s breakdown, stop
the test and alarm
3.Technical of Power Frequency Spark Test Machine Wire And Cable Testing Equipment | Output voltage AC | diameter | Electrode lengths | Testing speed | sensitivity | | 0 ~ 15KV | 30 | 600MM | GB / BS5099: no more than720m/min；UL1581/2556: no more than150m/min | GB/BS5099/VDE: ≤600uA； UL: ＜4mA | | 0 ~ 25KV | 30 | 600MM | | | | 0 ~ 30KV | 60 | 600MM | | | | 0 ~ 35KV | 60 | 600MM | | |
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