Terminal Block Verification Plan
Table
| Step | Description | Equipment | Expected Result | Notes |
|---|---|---|---|---|
| 1 | Visual inspection | Magnifying glass | Clean solder joints; no cracks, voids or bridging | Verify correct orientation and footprint alignment. |
| 2 | Continuity check between terminal and PCB pad | Digital multimeter | <1 Ω between terminal screw and its PCB pad | Test with terminal clamp open and closed. |
| 3 | Isolation check between adjacent terminals | Digital multimeter | OL (open-loop) between neighboring terminals | Ensures no unintended shorting. |
| 4 | Mechanical retention test (tug on inserted wire) | AWG‐appropriate wire | Wire remains securely held; no loosening under 1 N pull | Pull gently but steadily for ~5 s. |
| 5 | Rated‐voltage application | DC power supply | Terminal carries voltage without arcing or sparks | Use project’s nominal voltage (e.g., 12 V). |
| 6 | Rated‐current load test | DC load or electronic load | Voltage drop ≤ specified (e.g., <50 mV at 1 A) | Monitor temperature for ≤30 °C rise after 5 min. |
| 7 | Vibration/shock test | Vibration table / manual tap | No loss of continuity or mechanical failure | Apply light vibration or tap at 1 Hz for 30 s. |
| 8 | Final review | Test report template | All results within specification; sign-off recorded | Document serial no., date, operator initials. |
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