NEN 1010 • NEN 3140 • Reporting

Testing & Inspection

Periodic NEN inspections for safe electrical installations. Compliant with NEN 1010 (design/commissioning) and NEN 3140 (in-service/periodic).

Certified & recognised: VCA • Licensed installer • Seal rights (Liander)

What do we inspect?

Distribution boards, protective devices, cabling, earthing, RCD/RCBOs, documentation and alignment with actual usage. We assess electrical safety (shock/fire) and functional performance.

Our process

  • Scope & preparation (drawings, previous reports, operations)
  • Visual inspection (build, labelling, IP protection, penetrations)
  • Measurements & tests (insulation, continuity, loop impedance, RCD test, etc.)
  • Reporting with photos and priorities (Pass/Fail)
  • Remediation advice and (optional) quote; re-inspection after fix

Measurements & tests

  • Insulation resistance • PE continuity • Earth resistance
  • Fault loop impedance / prospective short-circuit current • Polarity • Phase sequence
  • RCD test (IΔn, trip time) • Voltage drop (where relevant)
  • Functional tests of protections and emergency systems

Deliverables

  • PDF report with findings, photos and measurement records
  • Defects list with priority (safety/continuity/regulatory)
  • Concrete remediation actions and plan • Re-inspection report
VCA-gecertificeerd NEN 1010 / 3140 Zegelrecht (Liander-gebied)