Quality Assurance per IEC 61439

Factory Acceptance Testing (FAT) & Technical Inspection

Comprehensive Electrical and Mechanical Verification Before Shipment

Every switchboard at TPS Electrical undergoes rigorous Routine Factory Acceptance Tests (FAT). We offer full transparency and welcome onsite witness testing by your engineers or independent Third-Party Inspection (TPI) agencies such as SGS, Bureau Veritas (BV), and TÜV to ensure strict compliance with project specifications.

Factory Acceptance Test (FAT) Protocols

Standard routine testing performed in accordance with international low-voltage and industrial switchgear standards

Insulation Resistance (Megger Test)

Measurement of insulation resistance between phases, phase-to-neutral, and all conducting poles against the enclosure/earth using a calibrated Megohmmeter at 500V and 1000V DC.

Min. resistance per IEC: > 100 MΩ

Dielectric (Hi-Pot) Test

Application of high-voltage power-frequency test (Hi-Pot 50Hz for 1 minute) to ensure insulation integrity of insulators, busbars, and protection against transient voltage failure.

Ui testing at 2.5kV for 60 seconds

Control Circuit & Logic Verification

Functional testing of all relays, contactors, control switches, fault trip scenarios, mechanical/electrical interlocks, and programmed PLC logic.

Line-by-line verification against As-Built drawings

Torque Verification (Busbar Connections)

Precision tightening of all main and sub-busbar bolts and connections using calibrated digital torque wrenches, finished with torque seal marking.

Nm torque applied per Grade 8.8 steel standards

Mechanical & Visual Inspection

Comprehensive physical check of enclosure integrity, IP rating sealing, paint quality, component placement, and alignment to engineering specifications.

Verification of mechanical assembly

Final Documentation & QC Release

Submission of the final dossier including Routine Test Certificate, QC inspection reports, As-Built drawings, and maintenance operation manuals.

Signed by Quality Control Manager

FAT Inspection & Witness Session Process

We welcome client representatives and Third-Party inspectors to our testing facilities

1

Internal Pre-FAT (QC)

Before client invitation, all panels are internally verified by our QC engineers to ensure zero-defect readiness.

2

Witness Testing (Client/TPI)

Official invitation for client/consultant witness or Third-Party Inspection (e.g., SGS, BV) to conduct live scenario load testing.

3

Final Sign-off & Shipping

Signing of final inspection certificates, industrial-grade packaging, and release of shipping/loading permits.

Need to Schedule an Onsite FAT Inspection?

Our testing facility and QC laboratory welcome clients, consultants, and third-party inspectors to ensure full project compliance.

Have a project in mind?

Contact our experts to receive free professional consultation, review plans, and get a quote. We are ready to build the best solution for you.

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