| Customization: | Available |
|---|---|
| After-sales Service: | Available |
| Warranty: | One Year |
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Frequency AC Spark Tester is a special-purpose test apparatus to detect fault of insulation on wire and cable. Integrated with the technology of solid-state AC voltage regulation and single piece microprocessor control, the machine features steady voltage output (unaffected by variation of supply voltage), high sensitivity of fault detection, versatility, user-friendliness, safety and reliability, new construction and beautiful appearance.
The work principle of the spark tester is as follows: Make the tested wire pr cable travel through the high voltage bead-chain electrode having test potential supplied by a commercial frequency HV transformer. If the insulation has fault, breakdown will occur, namely the output of the HV transformer will cause a HV spark short-circuit. The short circuit current flows from the output terminal of the HV transformer through insulation fault-conductor of cable-earth-ground-HV transformer to form a circuit. Therefor both the spark tester and the conductor of cable shall be soundly earth-grounded otherwise the short circuit cannot be formed and the cabinet of the spark tester and conductor of cable may have high voltage.
| Type | ST-15A | ST-25A | ST-25AT |
| Voltage output | 1.0-15kV | 2.0-15kV | 2.0-15kV |
| Voltage indication error | <5% | <5% | <5% |
| Detection sensitivity | <600μA | <600μA | <600μA |
| Stability | Complying with the requirements of GB3048.9-1994 and JB/T 4728.10 | ||
| Dectection resolution | 0.05s | 0.05s | 0.05s |
| Transient breakdown current | 100mA | 50mA | 50mA |
| Steady short-circuit current | <20mA | <20mA | <20mA |
| Detction Speed, Max | 300m/min | 350m/min | 350m/min |
| Overall diameter of tested wire or cable, max | ≤30mm | ≤55mm | ≤100mm |
DC Spark Tester
ST-15D DC Spark Tester is a useful tool for detection of surface damage as well as for spark test for wire and cable with a diameter below 10mm. The DC high voltage tester recommended internationally is characterized by advanced design, new construction, steady voltage output, high sensitivity, adaptability, easy operation, versatile mounting, safety and reliability. It may be used for on-line testing in combination with a pair twister or an extruder as well as for intermediate testing and testing for finished products.| Type | ST-15D |
| Voltage output | DC 0-15000V |
| Effective test voltage | DC 500-15000V |
| AC pulse ratio | <5% |
| Voltage stability | The power supply voltage fluctuates by ±15%, and the output voltage remains unchanged |
| Breakdown sensitivity | <600μA |
| Steady-state short-circuit current | 3-4mA |
| Max.frequency of breakdown counting | 10times/sec |
| Max.diameter of the tested wire | 10mm |
| Max.moving speed of the tested wire | 2800m/min |
Alpha Technical Industrial Co.,Ltd is a collection of scientific research and development and production of wire and cable equipment and a variety of efficient energy-saving extrusion production line of key enterprises, so far, the main product including wire and cable Insulation and Sheathing production Line, TQD series Pneumatic Type belt puller, LF series Portal Type Pay-off, LSP series Portal Type Take-up, Various Wire Accumulator, Capstan Haul-off, Pay-off & Take-up, Cooling Water Trough, and Optical Fiber Equipment, Communication Cable Equipment, Signal Cable Equipment.
− Q: What can we offer our customers?
A: Our professional production and technical personnel can train our customers' employees and ensure the smooth production of customers. And will provide our customers with after-sales service.
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