Electrical Installation Inspection
Guardian Middle East LLC delivers UAF-accredited third-party electrical installation inspection in Qatar under ISO/IEC 17020:2012 (Type A — third-party independent). Inspections cover low-voltage installations (per IEC 60364 series), high-voltage installations >1 kV (per IEC 61936), earthing systems, lightning protection (per IEC 62305), hazardous-area electrical installations (per IEC 60079), and periodic verification per applicable codes and Kahramaa requirements. Reports issued under TNV Global Limited’s UAF-Accredited Inspection Body Certificate 5241222IB04. Guardian Middle East LLC is the local representative in Qatar (QFC Licence 03870).
Accreditation Chain
Issuing Inspection Body: TNV Global Limited. Accreditation: UAF — Inspection Body Certificate 5241222IB04. Validity: 28 December 2024 – 27 December 2028. Standard: ISO/IEC 17020:2012 (Type A — third-party independent). Local representation in Qatar: Guardian Middle East LLC (QFC Licence 03870). The applicable accreditation framework explains the TNV inspection body role and Guardian’s local representation in Qatar.
Electrical installation inspection reports are issued under TNV Global Limited’s name and UAF-accredited mark. See Inspection page for the full accreditation framework, partnership model, and engagement model that governs all inspection scopes.
Installation Categories Covered
Category | Description & Code Framework |
Low-Voltage (LV) Installations | Installations operating at voltages up to 1000 V AC / 1500 V DC. Covers commercial buildings, industrial facilities, residential complexes, infrastructure projects. Reference: IEC 60364 series — Electrical Installations of Buildings. Includes initial verification and periodic verification activities. |
High-Voltage (HV) Installations | Installations operating above 1 kV AC. Covers HV substations, transformer rooms, switchgear, distribution networks within facilities. Reference: IEC 61936 — Power Installations Exceeding 1 kV AC. |
Earthing Systems | Earthing electrodes, earth grids, equipotential bonding, equipment earthing. Reference: IEC 60364-5-54 (LV earthing), IEC 61936 (HV earthing), BS 7430-aligned approaches where applicable, manufacturer specifications. |
Lightning Protection Systems (LPS) | External LPS (air termination, down conductors, earth termination), internal LPS (surge protection), bonding. Reference: IEC 62305 series (Parts 1–4) — Protection against lightning. |
Hazardous Area (Ex) Installations | Electrical installations in potentially explosive atmospheres — Zone 0/1/2 (gas), Zone 20/21/22 (dust). Reference: IEC 60079 series — Explosive Atmospheres. Specialist competence required (CompEx-aligned). Ex electrical inspection is often relevant in process plant context (Ex installations). |
Switchgear & Transformers | Inspection of LV and HV switchgear, distribution boards, motor control centres, power transformers — including factory acceptance testing (FAT) and site acceptance testing (SAT) witness. For crane systems, inspection may also include crane electrical control inspection. |
Cabling & Wiring Systems | Power cables (LV and HV), control cables, instrument cables — installation inspection, continuity testing, insulation resistance testing, partial discharge testing where commissioned. |
Renewable Energy Installations | Solar PV installations (where the electrical installation is part of the inspection scope), grid-connection inspection, applicable Kahramaa interconnection requirements. |
Specific scopes outside this list — for example, marine electrical installations, traction systems, specialized industrial control systems — may be accommodated on request.
Inspection Activities
Initial Verification (New Installations)
Per IEC 60364-6 (LV) and equivalent provisions for HV. Activities:
- Visual inspection — installation method, equipment selection, conductor identification, connections, accessibility, marking, signage, and overall installation quality.
- Continuity testing — protective conductor continuity, ring final circuit continuity, equipotential bonding continuity.
- Insulation resistance testing — between live conductors and between live conductors and earth.
- Polarity testing — verification of correct polarity of single-phase circuits.
- Earth electrode resistance testing — measurement of resistance of earthing electrodes against design values.
- Earth fault loop impedance testing — verification of disconnection time compliance for protective devices.
- RCD operation testing — verification of residual current device operation at rated trip current and trip time.
- Functional testing — operation of switching devices, control circuits, interlocks, and protection.
Periodic Verification (In-Service Installations)
Per IEC 60364-6 and applicable Qatari/Kahramaa frameworks. Periodic frequency depends on installation type, environment, regulatory framework, and prior verification history. Typical frequencies:
- Industrial installations — typically every 3 years.
- Commercial buildings — typically every 5 years.
- Construction sites — every 3 months (active sites).
- Hazardous-area installations — typically annual or per IEC 60079-17.
Specialised Inspection Activities
- Earth resistance and earthing system survey — comprehensive earthing system inspection including soil resistivity considerations, electrode resistance, equipotential bonding.
- Lightning Protection inspection — visual inspection of air termination, down conductors, earth termination per IEC 62305-3; periodic LPS inspection.
- Hazardous-area Ex inspection — initial inspection per IEC 60079-14, periodic inspection per IEC 60079-17 (close inspection at defined intervals).
- Thermographic survey — infrared thermography of electrical installations to identify hot-spots, loose connections, overloaded circuits — where commissioned as a separate activity or integrated with periodic verification.
- Insulation testing campaigns — high-voltage cable insulation testing including DC withstand, VLF, and partial discharge testing where commissioned.
- Power quality assessment — voltage, current, harmonics, transients — where the inspection scope includes power quality evaluation.
Standards & Codes Framework
Standard / Code | Application |
IEC 60364 series | Low-voltage Electrical Installations — multi-part series including: Part 1 (fundamental principles), Part 4 (protection for safety), Part 5 (selection and erection of equipment), Part 6 (verification), Part 7 (special installations). |
IEC 61936-1 | Power Installations Exceeding 1 kV AC — Part 1: AC. Covers HV substations, switchgear, earthing requirements. |
IEC 62305 series | Protection against lightning — Part 1 (general principles), Part 2 (risk management), Part 3 (physical damage to structures and life hazard), Part 4 (electrical and electronic systems within structures). |
IEC 60079 series | Explosive Atmospheres — Part 14 (electrical installations in hazardous areas), Part 17 (inspection and maintenance of electrical installations in hazardous areas), and equipment-specific parts. |
IEC 60099 | Surge arresters — covering selection, application, and testing of surge protection devices. |
IEC 60909 | Short-circuit currents in three-phase AC systems — referenced for protection coordination. |
BS 7671 / BS 7430 | UK Wiring Regulations / Earthing Code — referenced where contractually applicable, particularly in projects with UK-aligned specification. |
Kahramaa Requirements | Qatar General Electricity & Water Corporation (Kahramaa) requirements for connection to public supply, distribution standards, metering, grounding requirements. Where the installation interfaces with Kahramaa supply. |
Qatari Electrical Regulations | Applicable Qatari regulatory frameworks — particularly for new construction commissioning and periodic verification of public-facing facilities. |
NFPA 70 / 70E | US National Electrical Code (NEC) and Standard for Electrical Safety in the Workplace — referenced where US-specification compliance is contractually required. |
Manufacturer Specifications | Equipment manufacturer requirements (transformers, switchgear, motors, drives) — part of the inspection reference framework alongside code requirements. |
Inspector Competence & Engagement Model
Inspector Competence
Electrical installation inspectors deployed under TNV Global Limited’s UAF accreditation hold relevant qualifications:
- Electrical engineering background with installation inspection experience.
- Code-aligned competence — IEC 60364 series, IEC 61936, IEC 62305 — matched to engagement requirements.
- Certified Electrical Inspector qualifications where contractually required.
- CompEx certification — for hazardous-area (Ex) installation inspection per IEC 60079.
- Authorised Person — HV qualifications where applicable (for inspectors operating in HV switchroom environments).
- Lightning Protection specialist qualification — for IEC 62305 inspection.
- Thermographic certification — Level I/II/III thermographer qualifications where thermography is in scope.
- Working-at-height and confined-space training — for inspections requiring access to high or confined locations.
- Site-specific safety induction — Permit-to-Work, Lock-out/Tag-out (LOTO) training, electrical safety in the workplace.
Engagement Model (Inherited from Hub)
Electrical installation inspection follows the standard 5-step engagement model (/inspection/ §16). Electrical-specific deliverables include:
- Electrical Installation Condition Report — for periodic verification, with installation classification (satisfactory/unsatisfactory) and observation classification (C1/C2/C3/FI per IEC 60364-6 framework).
- Initial Verification Certificate — for new installation handover.
- Test results sheet — continuity, insulation resistance, earth electrode resistance, earth fault loop impedance, RCD operation.
- Earthing system survey report — where earthing inspection is in scope.
- Lightning Protection inspection report — per IEC 62305-3.
- Hazardous-area Ex inspection report — per IEC 60079-17.
- Thermography report — with thermal images, hot-spot identification, severity classification.
- Recommended next inspection date — based on installation type and observations.
Typical Use Cases
- New construction handover inspection — initial verification of LV and HV installations at commissioning, supporting Kahramaa connection and project handover.
- Periodic verification — periodic in-service inspection of industrial, commercial, and residential installations per IEC 60364-6 frequencies and applicable regulatory requirements.
- Construction site inspection — periodic verification of temporary electrical installations on construction sites — typically 3-monthly during active construction phases.
- Hazardous-area Ex inspection — initial and periodic inspection of electrical installations in hazardous areas per IEC 60079-14/-17 (oil & gas, petrochemical, fuel handling facilities).
- Earthing system survey — comprehensive earthing inspection — particularly for new substations, after lightning damage, or before commissioning of safety-critical systems.
- Lightning Protection inspection — periodic LPS inspection per IEC 62305 — typically annual or after lightning events.
- Switchgear FAT/SAT witness — third-party witness during factory acceptance testing or site acceptance testing of new switchgear installations. New switchgear projects may require FAT/SAT witness for new switchgear.
- Thermographic survey — infrared thermographic inspection of electrical installations to identify thermal anomalies indicating loose connections, overloads, or impending faults.
Why Choose Guardian for Electrical Inspection
- UAF-accredited reports under TNV Global Limited’s Inspection Body Cert 5241222IB04.
- Type A independence — required for inspection reports relied on by regulators (Kahramaa), insurers, project owners.
- Multi-domain competence — LV (IEC 60364), HV (IEC 61936), lightning (IEC 62305), hazardous-area (IEC 60079) — comprehensive electrical scope.
- Local Qatar presence — Guardian Middle East LLC operates as a QFC-licensed firm with Kahramaa-aware inspector deployment for projects requiring public supply interface.
- Specialist sub-scopes — earthing system survey, thermographic inspection, hazardous-area Ex inspection — through certified inspectors.
- Code-flexibility — IEC framework primary, BS 7671 and NFPA 70 accommodated where contractually specified.
- Integrated with construction & civil scope — see inspection construction-civil — for combined building electrical + civil inspection.
- Absolute non-consultancy commitment — Guardian does not design electrical installations, develop remedial designs, or supervise client implementation.
GET STARTED — CONTACT GUARDIAN
Guardian Middle East LLC | Serving the Middle East
QFC Licence 03870 · Doha, Qatar
Location: Abo Hamour Area, Doha, Qatar
P.O. Box: 23277, Doha, Qatar
Mobile: +974 7770 2602 | +974 7213 7770
Email: info@guardian.qa
Website: www.guardian.qa
Or submit an enquiry: → Contact
Compliance Notes
Electrical installation inspection services are delivered under TNV Global Limited’s UAF-Accredited Inspection Body Certificate 5241222IB04 (valid 28 December 2024 – 27 December 2028) under ISO/IEC 17020:2012 (Type A — third-party independent). Guardian Middle East LLC is the local representative in Qatar (QFC Licence 03870). Inspection reports are issued under TNV’s UAF-accredited mark and are recognised under the IAF MLA Inspection arrangement where applicable. Categories covered: low-voltage installations (IEC 60364), high-voltage installations >1 kV (IEC 61936), earthing systems (IEC 60364-5-54, IEC 61936), lightning protection systems (IEC 62305 series), hazardous-area Ex installations (IEC 60079 series), switchgear, transformers, cabling and wiring systems, renewable energy installation interface.
Activities: initial verification (new installations), periodic verification (in-service), specialized inspection (earthing surveys, LPS, Ex, thermography, insulation testing, power quality). Standards: IEC 60364, IEC 61936, IEC 62305, IEC 60079, IEC 60099, IEC 60909, BS 7671 / BS 7430 where applicable, NFPA 70 / 70E where US-spec applies, applicable Kahramaa requirements, Qatari electrical regulations, manufacturer specifications. Inspector competence: Electrical engineering background, code-aligned certifications, CompEx for Ex, Authorized Person — HV qualifications, Lightning Protection specialist, thermographic certification (Level I/II/III). Activities operate under the impartiality framework (ISO/IEC 17020:2012 §4.1), confidentiality framework (§4.2), and an absolute non-consultancy commitment.
Frequently Asked Questions
Initial verification is conducted on a new installation before it is energised — to verify compliance with the design and code requirements. Periodic verification is conducted on an in-service installation at defined intervals — to verify continued safety and compliance. Both follow IEC 60364-6 framework but differ in frequency and depth: initial verification is typically more comprehensive; periodic verification focuses on safety-critical aspects and changes since prior verification.
Kahramaa connection processes typically require evidence of installation compliance with applicable standards. Third-party inspection by an accredited body provides independent verification useful for Kahramaa connection submissions, project handover, and regulatory compliance. Specific Kahramaa requirements vary by installation type and supply level — Guardian's inspection plan accommodates the Kahramaa framework where applicable.
Hazardous-area inspection covers electrical installations in potentially explosive atmospheres (Zone 0/1/2 for gas, Zone 20/21/22 for dust) — common in oil & gas, petrochemical, and fuel handling. Initial inspection per IEC 60079-14 verifies installation compliance with the hazardous-area certification of the equipment. Periodic 'close inspection' per IEC 60079-17 verifies continued integrity. Specialist CompEx-certified inspectors are required.
Yes — infrared thermographic surveys identify hot-spots, loose connections, overloaded circuits, and impending faults — without de-energising the equipment. Surveys are conducted under load and in normal operating conditions. Findings are categorised by severity (typically advisory / monitor / serious / critical) with thermal images documented in the report. Thermography may be part of periodic verification or commissioned as a stand-alone activity.
Per IEC 60364-6 and applicable regulations: industrial installations typically every 3 years; commercial buildings typically every 5 years; construction sites every 3 months during active phases; hazardous-area installations typically annual per IEC 60079-17. Specific frequency depends on installation type, environment, regulatory framework, and prior verification observations.
Yes — HV switchgear inspection per IEC 61936, including new installation inspection (commissioning witness, FAT/SAT) and in-service periodic inspection. HV inspection typically requires Authorised Person — HV qualified inspectors operating under appropriate Permit-to-Work and Lock-out/Tag-out frameworks. Inspection scope is agreed at the inspection plan stage with site-specific safety planning.
LPS inspection per IEC 62305-3 covers external LPS (air termination, down conductors, earth termination) and internal LPS (surge protection, equipotential bonding). Visual inspection plus measurement-based inspection (e.g., earth electrode resistance) — typically annual for in-service systems. Particularly important in Qatar's high-lightning environment for tall structures, fuel installations, and electronic-equipment-rich facilities.
No. Guardian / TNV operate under an absolute non-consultancy commitment. Our inspectors identify non-compliances clearly against applicable code criteria and classify observations (C1 — danger present, C2 — potentially dangerous, C3 — improvement recommended, FI — further investigation required) — but do not specify remedial designs or supervise corrective installation work. Remedial design is the installation owner's responsibility, supported by independent electrical design as required.
Both are wiring regulations frameworks. IEC 60364 is the international (IEC) framework — adopted in many countries including Qatar. BS 7671 (Requirements for Electrical Installations — IET Wiring Regulations) is the UK national framework, broadly aligned with IEC 60364 but with UK-specific provisions. Where contractually specified, Guardian inspects to BS 7671. The default Qatar framework references IEC 60364 unless specifically alternative.
Submit an inquiry via process inquiry-and-quotation — selecting 'Inspection Services' as engagement type and 'Electrical Installation' as scope. Or email inspection@guardian.qa with: installation type (LV / HV / hazardous area / lightning protection), inspection phase (initial verification / periodic), applicable code, location, indicative size of installation, and required completion date. Single-line diagrams help us scope accurately.