UL 1017 Figure 3 Straight Test Probe

The UL 1017 Figure 3 Straight Test Probe is a precision-engineered safety verification instrument designed for compliance testing of household cleaning and finishing appliances according to UL 1017 safety standards. This specialized tool simulates accidental user access to hazardous components, including rotating mechanical parts and live electrical elements, through its standardized straight configuration with defined dimensional parameters.

Manufactured from corrosion-resistant stainless steel to ensure dimensional stability and durability throughout repeated testing cycles, the probe maintains strict compliance with UL 1017 specifications. Its precision construction enables reliable verification that dangerous components remain inaccessible during normal operation, preventing potential user injuries and ensuring regulatory compliance for manufacturers and testing laboratories.

Technical Specifications

• Probe Type: Straight Test Probe compliant with UL 1017 Figure 3 requirements for cleaning and finishing machine safety testing
• Material: Durable stainless steel construction (maintains dimensional accuracy, resists deformation)
• Total Length: 101.6 mm (4.0 inches)
• Head Diameter: 12.7 mm (0.5 inches)
• Head Radius: 6.4 mm (0.25 inches) – smooth surface to prevent damage to appliance enclosures
• Tail Diameter: 19.1 mm (0.75 inches) – provides stable handling during testing procedures
• Primary Function: Verification of hazardous mechanical and electrical component inaccessibility in vacuum cleaners, blower cleaners, and floor finishing machines
• Applied Force: Minimal force application simulating light, accidental user contact

Standardized Testing Protocol

1. Inspect the test probe for any physical damage (e.g., bent body, dented head) that could compromise measurement accuracy.
2. Power the appliance (vacuum cleaner, floor finishing machine) and allow it to reach normal operating conditions.
3. Grasp the probe by its tail section and align the head with potential access points (e.g., brush guards, ventilation openings).
4. Gently guide the probe toward internal hazardous components without applying appreciable force.
5. Document whether the probe contacts any dangerous components during the procedure.
6. Record compliance status according to UL 1017 safety requirements (pass/fail determination).

Application Scope

• Safety compliance testing of household vacuum cleaners per UL 1017 standards
• Regulatory verification for blower cleaners to prevent access to rotating impeller assemblies
• Compliance assessment of electric floor finishing machines (e.g., buffer polishers, floor scrubbers)
• Quality control verification in manufacturing environments
• Third-party laboratory safety certification testing