Quality inspection checklist for distribution panel production
1. Pre-Production Inspection
2. Assembly Inspection
- Review layout and wiring diagrams thoroughly.
- Check that all connections match the diagrams.
- Ensure wire colors and labels conform to standards.
- Document any discrepancies for further review.
- Examine all components for correct placement.
- Check for alignment with mounting holes and brackets.
- Ensure no components are misaligned or obstructed.
- Look for any signs of mechanical stress or strain.
- Refer to manufacturer specifications for torque values.
- Use a calibrated torque wrench for accuracy.
- Tighten connections to specified torque settings.
- Document torque values for quality assurance.
- Verify that all screws, nuts, and bolts are tight.
- Check for any loose components that could vibrate.
- Inspect mounting hardware for wear or damage.
- Confirm that no components are at risk of falling.
- Inspect each component visually for cracks or dents.
- Check for missing parts or accessories.
- Ensure that all components meet quality standards.
- Remove any damaged components from the assembly area.
- Review placement against design specifications.
- Ensure circuit breakers and fuses are oriented correctly.
- Confirm that critical components are easily accessible.
- Document any misplacements for corrective action.
- Check wire pathways for obstructions or sharp edges.
- Ensure wires are not pinched or overly tight.
- Verify that wires are spaced to prevent contact.
- Use cable ties or clamps to secure loose wiring.
- Ensure proper distance between heat-generating components.
- Check for obstructions that could impede airflow.
- Confirm that components are not overcrowded.
- Document spacing measurements for compliance.
- Inspect labels for clarity and visibility.
- Ensure labels are positioned for easy reading.
- Check that all required markings are present.
- Replace any illegible or missing labels immediately.
- Use a multimeter to measure resistance.
- Verify that all grounding points are secure.
- Check for corrosion or wear on grounding wires.
- Document grounding tests for safety compliance.
- Inspect solder joints for smooth, shiny finishes.
- Check for cold solder joints or bridging.
- Ensure connections are firm and conductive.
- Rework any defective solder joints as needed.
- Check that all covers fit securely without gaps.
- Ensure that enclosures are sealed against dust and moisture.
- Inspect for proper alignment with mounting points.
- Document any installation issues for correction.
- Verify that strain reliefs are installed on all cable entries.
- Check that cables are protected from sharp edges.
- Ensure that reliefs are secured and functional.
- Document any missing strain reliefs for follow-up.
- Verify installation of interlocks and emergency stops.
- Test functionality of all safety features.
- Ensure that safety mechanisms are easily accessible.
- Document functionality tests for compliance.
Use in Manifestly