Power Frequency Spark Tester for Wire Extrusion Line

Hongli’s Power Frequency Spark Tester is specially built for medium- to low-speed extrusion lines requiring AC 50Hz testing. This tester supports continuous detection of insulation integrity for cables insulated with PVC, XLPE, or LSZH, and is ideal for small- to medium-sized wire production applications.   Its simple interface, automatic calibration, and electrode wear detection ensure consistent output quality. Compatible with all major Power Wire Extrusion Line setups, the system delivers high reliability at low maintenance cost.   Hongli offers full-scale support for cable production—from cable extruder machines to quality control devices—backed by international certifications, on-site commissioning, and spare part stocking for global customers.