5 Common Mistakes That Lead to RETIE Audit Rejection

From poor grounding to unlabeled panels — these are the most frequent findings and how to avoid them before your audit.

1Mistake 1: Incomplete or Outdated Documentation

The most frequent mistake is presenting electrical drawings that do not reflect the current state of the installation. Drawings must be up to date and signed by a licensed electrical engineer, including calculation notes, single-line diagrams, and floor plans.

2Mistake 2: Inadequate Grounding

Many installations fail certification due to inadequate grounding systems. Resistance values must be within the limits established by RETIE for the corresponding voltage level. It is crucial to take measurements with calibrated equipment before applying for certification.

3Mistake 3: Undersized Protections

Breakers and fuses must be properly coordinated with the conductor capacity and the loads they serve. An undersized protection system not only invalidates certification but poses a real risk of fire or equipment damage.

4Mistake 4: Missing Signage and Labeling

RETIE requires clear signage on all electrical panels, circuit identification, electrical hazard warning signs, and demarcation of safety zones. Missing signage is one of the most common non-conformities.

5Mistake 5: No Expert Advisory

Attempting to manage certification without expert guidance leads to delays and additional costs. Certicheck offers a free pre-audit that identifies non-conformities before the official site visit, ensuring a successful first-time certification.