Difference between revisions of "Example internal testing methodology"
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# Cover in single layer of surgical cotton over motor clamp. | # Cover in single layer of surgical cotton over motor clamp. | ||
| − | [[File:Motors in enclosed spaces.jpg| | + | [[File:Motors in enclosed spaces.jpg|thumb|motor in test fixture]] |
Measurement details: | Measurement details: | ||
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# Fused on hot leg. | # Fused on hot leg. | ||
| − | [[File:Mesurement equipment.jpg| | + | [[File:Mesurement equipment.jpg|thumb|layout of equipment]] |
Revision as of 16:08, 6 May 2021
UL-507 Section 179 Testing procedure. Fan motors in unattended areas. REV 200826
Motor Thermocouple information (in order of connection at measuring equipment):
- Top Main Lead End
- Top Main Opposite Lead End
- Top Aux Lead End
- Top Aux Opposite Lead End
- Frame
- Ambient
Motor fixture details:
- Motor oriented with thermal protector oriented on the bottom.
- Clamped to testing surface using Unistrut. Move capacitor if applicable.
- Rotor locked.
- Cover in single layer of surgical cotton over motor clamp.
Measurement details:
- Current clamp installed on hot leg, using a pig tail from fusable enclosure.
- Voltage meter leads installed securely.
- Fused on hot leg.
