• China AC High Frequency Spark Tester Wire and Cable Default Testing
  • China AC High Frequency Spark Tester Wire and Cable Default Testing
  • China AC High Frequency Spark Tester Wire and Cable Default Testing
  • China AC High Frequency Spark Tester Wire and Cable Default Testing
  • China AC High Frequency Spark Tester Wire and Cable Default Testing
  • China AC High Frequency Spark Tester Wire and Cable Default Testing

China AC High Frequency Spark Tester Wire and Cable Default Testing

After-sales Service: Professional and Technical Personnel
Warranty: 12 Months
Connectors: Depends
Test Mode: Point Test
Usage: Cable Diameter Measuring
Test Region: Forming Cable
Customization:
Gold Member Since 2023

Suppliers with verified business licenses

Tianjin, China
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Basic Info.

Model NO.
ST-25A
Cable Type
Shielded
Certification
CE
Customized
Non-Customized
Color
Blue
Input Voltage
AC220V 380V 415V
Output Voltage
2.0-25.0kv
Detection Sensitivity
<600µa
Cable Diameter
≤55mm
Transport Package
Wooden Box
Specification
585mm× 205mm× 125mm
Trademark
ON LINE
Origin
China
HS Code
9031809090
Production Capacity
100000PCS/Year

Product Description

ST-15/25A Commercial Frequency AC Spark Tester

ST-15/25A Commercial 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.

Technical Parameters

 
Type ST-15A ST-25A ST-25AT
Voltage output 1.0-15.0kV 2.0-25.0kV 2.0-25.0kV
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
Detection resolution 0.05s 0.05s 0.05s
Transient breakdown current 100mA 50mA 50mA
Steady short-circuit current <20mA <20mA <20mA
Detection speed, Max 300m/min 350m/min 350m/min
Overall diameter of tested wire or cable, max ≤30mm ≤55mm ≤95mm
 
China AC High Frequency Spark Tester Wire and Cable Default Testing
China AC High Frequency Spark Tester Wire and Cable Default Testing
China AC High Frequency Spark Tester Wire and Cable Default Testing

 

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