How to Perform a QA/QC Audit Review for Electrical Compliance

Purpose

This task is designed to help learners:

• Examine a sample QA/QC audit or inspection report for a real-world electrical installation.
• Identify gaps, non-conformities, and areas of improvement in quality and safety compliance.
• Develop analytical, reflective, and decision-making skills for vocational QA/QC tasks.
• Link audit findings to UK legislation, electrical codes, and industry standards.
• Produce evidence demonstrating understanding of QA/QC practices in electrical systems, installation safety, and compliance monitoring.

Vocational Competency Focus:

• Auditing electrical installations against UK standards such as BS 7671:2018 Wiring Regulations and EAWR 1989.
• Identifying non-conformities in safety, documentation, and installation practices.
• Recommending corrective and preventive actions.
• Documenting audit findings in a clear, professional QA/QC format.
• Understanding legal and ethical responsibilities in electrical QA/QC roles.

Vocational Scenario

You are assigned to review a QA/QC audit report for a commercial building electrical installation in London. Key points from the report include:

1. Visual Inspection:
   • Some circuits in the main distribution board are improperly labelled.
   • Cable routing is too close to hot water pipes in some areas.
2. Testing:
   • Insulation resistance testing was incomplete for two sub-circuits.
   • Earth continuity tests were performed but not documented fully.
3. Documentation:
   • Risk assessments for newly installed switchgear were missing.
   • Certificates and test forms were partially filled.
4. Safety Compliance:
   • An electrician was observed working without gloves and insulated tools on live circuits.
   • Minor housekeeping hazards (cables left on floor) noted.
5. Standards & Regulations:
   • Deviations from BS 7671:2018 observed.
   • Some actions could contravene Electricity at Work Regulations 1989 (EAWR) and Health and Safety at Work Act 1974 (HSWA).

Step-by-Step Audit Review Guidance

Step 1: Review the Audit Report

• Carefully read all points in the audit report.
• Identify the areas not in compliance with standards or safety practices.
• Note any missing documentation or incomplete tests.

Vocational Tip: Pay attention to minor details like labelling, PPE usage, and documentation completeness, as these often indicate systemic QA/QC issues.

Step 2: Identify and Classify Non-Conformities

Critical: High risk to life or major legal non-compliance.

• PPE violation on live circuits
• Incomplete insulation resistance testing

Major: Safety or compliance deviations that need correction.

• Cable routed near hot water pipes
• Missing risk assessments

Minor: Small procedural issues, can be corrected without immediate hazard.

• Improper labelling of circuits
• Minor housekeeping hazards

Step 3: Analyze Causes

• Why did non-conformities occur? Consider:
  • Lack of training or awareness
  • Poor supervision or QA oversight
  • Pressure to meet deadlines
  • Ineffective documentation systems

Example Analysis:

Observation	Cause Analysis	Implication
Improper labelling	Installer not following BS 7671 labeling section	Reduced traceability, potential for errors in future maintenance
Cable near water pipe	Lack of supervision and QA check	Increased fire and shock risk
Missing risk assessment	Incomplete documentation	Non-compliance with ISO 9001 and EAWR 1989
PPE violation	Worker complacency / insufficient enforcement	High risk of injury, legal liability
Incomplete insulation test	Oversight / deadline pressure	Potential for latent electrical faults

Step 4: Link to UK Standards & Regulations

Observation	Relevant Standard / Law	Explanation
Improper labelling	BS 7671:2018, Section 514.4	Circuits must be identifiable to prevent operational errors and facilitate safe maintenance.
Cable routing near water	BS 7671:2018, Section 521.10	Conductors must have proper insulation and safe clearance from water sources.
Incomplete insulation test	BS 7671:2018 Section 611	Ensures circuits are electrically safe; incomplete tests risk faults or fire.
Missing risk assessment	EAWR 1989 / ISO 9001:2015	Legal requirement to assess hazards; protects workers and compliance status.
PPE violation	HSWA 1974 / EAWR 1989	Legal duty to protect personnel; failure may result in injury or prosecution.

Step 5: Recommend Corrective Actions

Practical Actions:

• Re-label all circuits per BS 7671:2018.
• Re-route cables near water sources with proper insulation.
• Complete missing insulation tests and earth continuity checks.
• Conduct risk assessments for all unassessed switchgear immediately.
• Enforce PPE rules strictly; provide training and supervision.
• Update documentation to ensure ISO 9001 compliance.
• Re-inspect site and record corrective action completion.

Step 6: Implement Follow-Up & Verification

• Plan re-inspections after corrective actions.
• Verify compliance with BS 7671, EAWR 1989, HSWA 1974.
• Document evidence (photos, checklists, reports).
• Ensure auditable QA/QC records are kept for future inspections.

Reflective & Analytical Questions

• Which non-conformity posed the highest safety risk, and why?
• How does linking observations to UK standards and legislation prevent future incidents?
• Why is documenting causes and corrective actions critical in QA/QC practice?
• How could missing risk assessments impact both safety and project compliance?
• What strategies can ensure PPE compliance and safe working practices?
• How do minor issues (labelling, housekeeping) influence long-term quality and safety?
• How can QA/QC audit reviews contribute to continuous improvement in electrical projects?
• What improvements would you suggest for the audit process itself to avoid recurring non-conformities?

Learner Task

• Review the sample audit report in the scenario.
• Identify all non-conformities and classify them as critical, major, or minor.
• Link each non-conformity to relevant UK standards, codes, or legislation.
• Recommend corrective actions for each non-conformity, with justification.
• Explain how your actions prevent incidents and ensure compliance.
• Prepare a summary table linking observation → non-conformity → standard → corrective action → verification.
• Submit the task with reflections on improvements and QA/QC lessons learned.