India’s Only Full-Scope NABL-Accredited Testing Laboratory for Power Hardware and Accessories
IAC’s NABL-accredited testing facility is the only full-scope lab in India certified to test power transmission, distribution, and sub-station hardware and accessories under one roof. From mechanical endurance to electrical performance and environmental resilience, every test conducted here ensures that components meet the highest standards of reliability, safety, and longevity.
Comprehensive Testing Capabilities
IAC’s NABL accreditation covers every critical testing domain required for power line, distribution, and sub-station components — mechanical, electrical, metallurgical, dimensional, environmental, and vibration testing — all performed in-house.
Our testing services are trusted by hardware manufacturers, EPC companies, and utilities across India and abroad to verify compliance, quality, and performance before deployment on live power networks. All tests are conducted as per Standard Manufacturing Quality Plans (SMQP) or customer-approved quality plans (MQP). Each stage of testing follows the relevant IS, IEC, BS, and DIN standards.
Mechanical Performance Testing
Evaluates the mechanical strength, load-bearing capacity, and endurance of fittings and accessories used in transmission, distribution, and sub-station applications.
- Tensile / UTS test (ambient & elevated temperature)
- Mechanical Damage / Load test
- Compression and Tension test
- Shear Head Test (IPC)
- Torque & Assembly test (all fittings)
- Bend Test, Wrapping Test, Layer Ratio Test (incl. Steel/ACS wires)
- Mechanical Load Time test (insulators)
- Resilience Test (Spacer Damper)
- Coefficient of Linear Expansion (Composite Core)
- Compression–Tension & Movement/Flexibility Tests (Spacer Damper)
- Slip Strength test (hardware, AB cable fittings, MVCC)
- Mechanical Strength test (Insulator Strings)
- Clamp Bolt Tightening Test
- Sheaves test; Radial Crush test
- Torsional Ductility test
- Lift Load, Side Load, Damage & Failure Load test (MVCC suspension clamp)
- Static, Dynamic, Endurance test (Armour Rod)
- Movement Test, Flexibility Test (Spacer Damper)
- Brittle Fracture Test
- Attachment Tests (Clamp to Messenger Cable, Weight Attachment)
Electrical Performance Testing
Assesses electrical continuity, conductivity, insulation strength, and heat performance under operational and extreme conditions.
- DC Resistance test (conductor, spacer damper)
- Conductivity Test (armour rod; spacer damper)
- Voltage & Water Tightness test (IPC, AB Cable, MVCC)
- Electrical Resistance test (spacer damper)
- Temperature Cycle Test (Ambient & Elevated)
- Creep Test (Ambient & Elevated Temperatures) – Mechanical + Electrical
- Temperature Rise test (clamps & connectors; clamp connector pair)
- Continuity Test (IPC)
- Water Voltage Test
- Magnetic Power Loss test (vibration damper; suspension clamps)
- Heating Cycle Test
- Stress-Strain Test (Ambient & Elevated Temperatures) – Mechanical + Electrical
Metallurgy, Materials & Coatings Testing
Verifies material integrity, metallurgical structure, and surface protection quality to ensure long-term strength and corrosion resistance.
- Chemical Analysis
- Hardness Tests (Vickers, Rockwell, Brinell, Shore A & D)
- Coefficient of Linear Expansion (Composite Core)
- Metallurgical Verification (Grain Size, Grain Flow, Inclusion Rating)
- Galvanizing Tests (Zinc thickness by Elecometer, Uniformity of Coating, Adhesion Test, Mass of Zn Coating)
- Porosity test (Porcelain Insulator) and Brittle fracture test
Dimensional Testing
Ensures precise fitment, geometric accuracy, and defect-free manufacturing of components and assemblies.
- Visual Examination & Dimensional Verification
- Dye Penetration Test
- Porosity Test (Porcelain Insulator)
- MPI Test (Magnetic Particle Inspection)
- Gauge Checking (Ball & Socket Coupling)
Environmental & Durability Testing
Tests the resistance of hardware to corrosion, temperature cycles, and weathering for reliable outdoor performance.
- Heating Cycle test (compression fittings—dead end, midspan joint, repair sleeve, T-connector)
- Weather Proofness Test
- Salt Spray Test
Vibration & Fatigue Testing
Simulates real-world dynamic forces and conductor vibrations to ensure long-term stability and fatigue resistance.
- Aeolian Vibration Test
- Vibration Test on Insulator Strings
- Dynamic & Static Tests (Armour Rod, Dampers)
- Damper Effectiveness / Efficiency Test
- Torsional Slip Test (spacer damper)
- Grading Device Test on Insulator
- Fatigue Test (including Aeolian, Vertical, Longitudinal, Sub-span Oscillation)
- Resonance Frequency Test (Vibration Damper)
- Endurance Test (Armour Rod)
- Log Decrement Test
- Characteristic of Elastic & Damping Test (Spacer Damper)
Specialized Testing
Provides custom validation for unique or project-specific hardware used in power networks.
- Targeted validation for unique components
- Shear Head Test (IPC)
Why IAC’s NABL Lab is the Industry Benchmark
India’s Only Full-Scope Facility
Covering every testing discipline — mechanical, electrical, metallurgical, environmental, and vibration — under one roof
Power Sector Expertise
Specialized in testing for transmission lines, distribution systems, and sub-station hardware and accessories
Trusted by Industry Leaders
Partnering with EPCs, OEMs, and utilities for type, routine, and acceptance testing
International Standards Compliance
Accredited for IS, IEC, BS, and DIN testing protocols
Proven Accuracy
Decades of testing expertise backed by advanced instrumentation and experienced engineers
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