UL 1278 Figure 8.1 PA130A Uninsulated Live Parts Test Probe

The UL 1278 Figure 8.1 PA130A Uninsulated Live Parts Test Probe is a precision-engineered safety verification instrument designed specifically for compliance testing of portable electric tools, including drills, grinders, and similar equipment. This probe incorporates a conductive brass tip to detect the presence of uninsulated live components, a critical function for assessing whether hazardous energized parts remain inaccessible under standard test conditions. The probe is equipped with an insulating nylon handle to ensure operator safety during testing procedures. It applies a calibrated 10N thrust force to simulate potential accidental contact scenarios. Manufactured in strict accordance with UL 1278 specifications, this probe demonstrates exceptional durability and dimensional stability, serving as an essential tool for manufacturers to verify product safety and achieve compliance with U.S. market regulations under UL 1278 and harmonized IEC 60745 standards.

Technical Specifications:
• Probe Type: UL 1278 Figure 8.1 Uninsulated Live Parts Test Probe (for portable electric tools)
• Probe Tip Material: Brass (high conductivity for reliable detection of live parts; corrosion-resistant)
• Handle Material: Nylon (fully insulating, heat-resistant, non-slip grip for safe operation)
• Key Dimensions:
– Probe Tip Diameter: 4.8 mm ± 0.1 mm
– Effective Probe Length: 63.5 mm ± 0.2 mm
– Handle Length: 115 mm ± 0.5 mm
– Total Length: 178.5 mm ± 0.5 mm
• Applied Test Force: 10N ± 0.5N (simulates accidental user contact with tool apertures as per standard)
• Core Function: Verifies the inaccessibility of uninsulated live parts in portable electric tools in compliance with UL 1278 and IEC 60745 standards.

Standardized Test Procedure:
• Conduct a preliminary inspection of the probe assembly (verify tip integrity, handle condition, and secure connections).
• Energize the portable electric tool under test and allow it to reach its normal operating state.
• Securely grip the insulating handle and position the brass probe tip at designated tool openings (e.g., ventilation slots, switch apertures).
• Apply a steady 10N thrust force to the probe in the direction of potential uninsulated live parts.
• Determine whether the probe establishes electrical contact with any energized component (verified via appropriate test instrumentation or visual confirmation).
• Document the test outcome against the specified safety requirements (pass/fail criteria).

Primary Applications:
• Safety compliance testing of handheld electric drills and impact drills.
• Verification of angle grinders and sanders for conformance to uninsulated live part accessibility requirements.
• Safety assessment of portable circular saws and jigsaws for U.S. market entry.
• Quality assurance testing during the manufacturing of electric screwdrivers and rotary tools.
• Post-production audit testing of both corded and cordless portable electric tools to validate compliance with UL’s live part accessibility standards (UL 1278).

UL 1278 Figure 8.1 Uninsulated Live Parts Test Probe

Tags：SMT-PA130A , UL 1278 , UL 982