Installation Quality Control: Common Mistakes (Topic 4) in Module 5 – Solar-PV-NABCEP-Associate (BG)

Installation Quality Control: Common Mistakes

Quality control (QC) is about preventing problems through consistent checks during and after installation. Many PV failures are traceable to a small set of repeat mistakes.

Examples of issues QC can catch

• Loose terminations
• Damaged conductor insulation
• Misrouted conductors (pinched, under modules, sharp edges)
• Missing/incorrect bonding hardware
• Poor labeling or missing documentation

A disciplined QC process reduces callbacks and improves safety.