Sector-Specific Solutions
IEC-certified insulation materials engineered for the most demanding industrial environments — from 765kV grid transformers to EV traction motors.
ACC Insulations manufactures and supplies IEC/IS-rated electrical insulation materials for OEMs, EPC contractors, and utility operators across India. Materials cover high-voltage transformer insulation, glass epoxy laminates (FR4/G10/G11), FRP pultruded profiles, glass fiber tubes, densified laminated wood, pressboard, and custom CNC-machined parts.
Every material grade — from Class A to Class H thermal rating — matches a specific voltage level, ambient temperature, and mechanical loading requirement. No guesswork. Just verified material data sheets, traceable to IEC standards, shipped with full certification.
Rapid infrastructure expansion demands electrical systems that deliver both efficiency and long-term resilience. ACC acts as a supply partner beyond just materials — offering engineering consultation to match the right insulation grade to your dielectric strength, thermal class, and mechanical load requirements.
Transformer insulation kraft paper, pressboard, and glass fiber tubes for generator step-up transformers, station service transformers, and HV capacitor banks. Rated IEC 60641 and IEC 60819.
Thermally upgraded paper (155°C) · Pre-compressed pressboard · Epoxy-bonded glass tubes
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HV/EHV insulation barriers and winding spacers for 132kV–765kV power transformers and GIS substations.
Densified pressboard · Nomex barriers · Oil-impregnated cylinders
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High-strength G11 FRP sheets and custom slot wedges for traction motors. NFF/EN fire-smoke-toxicity compliant.
G11 laminates · Slot wedges · Arc chute plates · Epoxy tube sections
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FR4 and G10 glass epoxy laminates built for underground vibration, oil mist, and mechanical impact. Continuous duty rated.
FR4 sheets · G10 rods · Machined insulation blocks
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Corrosion-resistant FRP pultruded profiles for Zone 1/2 hazardous areas. High CTI. Zero halogen options.
FRP angles/channels · Densified wood · CTI 600 laminates
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CNC-precision machined insulation for busbar supports, cable clamps, arc divider plates, and LV/MV control panels.
Phenolic laminates · FR4 · G10 · Press moulded parts
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Moisture-resistant insulation for submersible motors and MCC panels. Resistant to chlorine and effluent chemical exposure.
BMC/DMC compounds · Polyester glass laminates · Moisture-resistant tubes
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UV-stable, thermally cycling-resistant composites for solar string inverters and wind turbine generator windings. Outdoor rated.
UV-stabilised FRP · HVDC phase barriers · Arc-resistant sheets
ExploreEvery grade verified to IEC/IS standards. Full test certificates available on request with every shipment.
| # | Material / Grade | Standard | Thermal Class | Industries | Key Property |
|---|---|---|---|---|---|
| 01 | Glass Epoxy Laminate — FR4 | IEC 60893 / IS 13410 | 130°C (B) | Switchgear Mining Railways | High mechanical strength, flame retardant |
| 02 | Glass Epoxy Laminate — G11 | IEC 60893 | 155°C (F) | Railways Power Wind | Hot strength retention, vibration resistant |
| 03 | Transformer Kraft Paper | IEC 60641 | 105°C (A) | Power Gen Transmission | High dielectric, oil-impregnated |
| 04 | Thermally Upgraded Paper | IEC 60819 | 155°C (F) | Power Gen Transmission | Extended transformer life, low DP degradation |
| 05 | Pressboard (Pre-compressed) | IEC 60641-3 | 105°C (A) | Transmission Power | High compressive strength, oil-stable |
| 06 | FRP Pultruded Profiles | ASTM D5083 | 130°C (B) | Oil & Gas Water Solar | Corrosion-resistant, non-conductive, lightweight |
| 07 | Densified Laminated Wood | IEC 61061 | 90°C (Y) | Transmission Oil & Gas Switchgear | High compressive strength, machinable |
| 08 | BMC / DMC Moulding Compounds | IEC 60335 | 130°C (B) | Water Switchgear Railways | Complex shapes, arc-resistant, moisture-proof |
Renewable Energy
Demand for high-voltage DC (HVDC) insulation climbs alongside India's renewable energy capacity targets. ACC's UV-stabilised composites for solar string and central inverters handle harmonic distortions and thermal cycling inherent in DC-AC conversion. Phase barriers and structural FRP supports maintain dielectric integrity under outdoor UV exposure, temperature swings from −10°C to 55°C, and monsoon humidity.
Wind turbine generator insulation demands Class F or H rated materials. ACC supplies slot liners, wedges, and lacing tubes that survive continuous vibration from rotor imbalance and variable-speed operation.
Railway & Traction
Modern AC traction motors in metro and mainline locomotives demand compact, high-torque designs with tight insulation tolerances. ACC supplies slot wedges, spacers, arc chutes, and winding slot liners that meet NFF 16-101 fire, smoke, and toxicity standards.
Custom CNC-machined parts — including commutator insulation rings and brush holders — support 24×7 urban transit reliability with zero unplanned outages. Lead time: 7–14 working days for machined components.
Hazardous & Harsh Environments
Oil & gas and wastewater sectors expose electrical components to corrosive vapours, H₂S, chlorine, hydrocarbons, and extreme pressures. Standard laminates degrade under such conditions — causing flashovers, tracking, or catastrophic equipment failure.
ACC's glass epoxy laminates and densified laminated wood deliver near-zero moisture absorption (IEC 60893 water absorption <20mg) and CTI 600 tracking resistance.
FRP pultruded sections — angles, channels, I-beams, and round tubes — carry verified arc-extinction ratings critical to preventing explosions in ATEX Zone 1 and Zone 2 classified areas. Advanced vinyl ester and epoxy resin systems resist chemical attack while maintaining structural load capacity at elevated temperatures (up to 180°C continuous service).
Share voltage level, operating temperature, and application. Our engineering team returns a verified material recommendation with a full technical data sheet.
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