Remote-Control Cable Piercing Test for Underground Power Cable Maintenance

In August 2025, a cable piercing test was carried out in Panlongcheng Economic Development Zone for an underground power cable modification project.

Due to local subway construction, the existing cable lines needed to be upgraded and modified. According to safety regulations, the cables had to pass a piercing verification test before cutting to ensure that the cable was safely confirmed before further construction operations.

The construction contractor contacted our company to provide professional cable piercing testing services.

During underground cable modification work, the main challenges included:

• Ensuring the cable was safely identified before cutting
• Preventing accidental contact with potentially energized cables
• Completing testing efficiently without delaying construction schedules
• Providing a safe testing method for field operators

Our engineering team provided the wireless remote-controlled cable piercing tester for the project.

The equipment features a built-in rechargeable battery and remote operation design. During the test, the piercing device was installed with the piercing nail and cartridge, then securely fixed onto the target cable.

After installation, the grounding connection was completed and the device entered the ready state. Engineers used the wireless remote controller to complete the piercing operation from a safe distance, avoiding direct contact with the equipment during triggering.

This remote operation design significantly improved testing safety and field operation efficiency.

During this project:

• 14 piercing tests were completed successfully
• 11 underground cables were tested
• 3 cables required piercing tests at both ends
• All tests were completed quickly with a 100% one-time success rate
• Construction progress was not delayed
• The testing performance received positive feedback from the construction team

The cable piercing tester provided:

• Wireless remote operation for improved operator safety
• Built-in battery design for convenient field use
• Fast and reliable cable verification before cutting
• Suitable for underground cable modification projects
• Reduced risk during power cable maintenance operations