UL1278 PA160 Hazardous Moving Parts Test Probe
1,The rotor of a motor, a pulley, a belt, a gear, a fan, or other moving parts shall be enclosed or guarded to reduce the risk of injury to persons.
2,A fan blade shall be constructed of a material and in such a manner to reduce the risk of its breakage or its release of parts that could cause a risk of injury to persons.
3,The portion of a fan blade that can cause a risk of injury to persons shall be guarded so that the probe shown in Figure 9.1 cannot touch the part when inserted with a force of 1 lb (4.4 N) through any opening in the guard.
Exception: This requirement does not apply to a part or portion of a part that must be exposed to enable a heater to perform its intended function
Total Length :88.9mm(3.5 inch)
Head Length :25.4mm(1 inch)
Head Radius: R 3.2mm(1/8 inch)
Former Head Diameter:12.7mm(1/2 inch)
Tail Diameter :25.4mm(1 inch)
Reference standards: UL1278 figure 9.1 (PA160)