Site Safety UAE homepage logo — circular eagle badge with a maple leaf in the eye and red and green halvesSite Safety UAE
Login
Back to Site Electrical Checklist

Inspection & Testing

Initial verification, periodic inspection, and testing requirements for UAE construction site electrical installations — including insulation resistance, continuity, and RCD testing.

Initial Verification

Before any temporary electrical installation is energised on a UAE construction site, it must be inspected and tested by a competent, licensed electrician. The Abu Dhabi DoE EWR 2020 and ADOSH-SF CoP 15.0 both require initial verification to confirm the installation complies with the applicable regulations. An Electrical Installation Certificate (EIC) or equivalent record must be completed.

  • Visual inspection

    Before energisation — all connections, labelling, protection

    critical

  • Insulation resistance test

    ≥1 MΩ between live conductors and earth (500V DC test)

    critical

  • Continuity of protective conductors

    All CPC continuity confirmed — R1+R2 measured

    critical

  • Polarity check

    Correct polarity confirmed at all outlets and equipment

    critical

  • Earth fault loop impedance

    Zs measured — confirm protective device will operate within time limit

    critical

  • RCD test

    Trip time measured with RCD tester at rated current

    critical

  • Functional test

    All protective devices operated — confirm correct operation

    critical

Periodic Inspection Schedule

ADOSH-SF CoP 15.0 requires monthly inspection of all temporary electrical installations on construction sites. The Dubai Municipality Code of Construction Safety Practice requires periodic inspection records to be maintained on site and available for authority inspection. The DEWA checklist for testing and inspection without interconnection provides the standard test schedule for Dubai projects.

Inspection ItemFrequencyStandard
Visual inspection of all DBs, cables, and equipmentWeeklyADOSH-SF CoP 15.0
RCD test button operationMonthlyIEC 61008 / ADOSH-SF CoP 15.0
RCD trip time test (instrument)Every 6 monthsIEC 61008
Insulation resistance testEvery 3 monthsDoE EWR 2020 / BS 7671
Earth continuity testEvery 3 monthsDoE EWR 2020 / BS 7671
Earth resistance test (electrodes)Monthly on active sitesIEC 60364-5-54
Full periodic inspection (EIC)Every 12 months or at project completionDoE EWR 2020 / Dubai Building Code
Generator inspectionMonthly + after any relocationADOSH-SF CoP 15.0

Competency Requirements

All electrical inspection and testing on UAE construction sites must be carried out by a licensed electrician holding a valid UAE authority licence. In Abu Dhabi, ADDC maintains a register of approved electrical contractors. In Dubai, DEWA maintains a register of approved contractors. Unlicensed electrical work is a prosecutable offence under UAE law and invalidates any insurance coverage.

  • Abu Dhabi

    ADDC-approved electrical contractor licence required

    critical

  • Dubai

    DEWA-approved electrical contractor licence required

    critical

  • Sharjah

    SEWA-approved contractor licence required

    critical

  • Northern Emirates

    EtihadWE-approved contractor licence required

    critical

  • Test equipment calibration

    All test instruments must have valid calibration certificates

    critical