Flyaford
Engineered for extreme pollution environments, high-humidity switchgears, and high-reliability renewable energy networks.
In modern electrical distribution, switchgear design, and industrial automation, electrical insulation reliability dictates operational uptime. As power density increases within compact enclosures, electrical equipment faces unprecedented dielectric stress. Under international standards such as IEC 60664-1 and EN 60664-1, the design of standoff insulators must carefully balance clearance distance (the shortest distance through air) and creepage distance (the shortest distance along the surface of the solid insulating material).
Creepage distance is critical for preventing surface tracking—a continuous conductive path formed on the surface of an insulating material due to electrical stress and surface contamination. When moisture, industrial dust, or salt spray deposits accumulate on standard insulators, leakage currents heat the moisture, creating dry bands. The localized high voltage gradient across these dry bands sparks micro-arcs, leading to catastrophic flashover failures.
Zhejiang Flyaford Electron Co., Ltd. utilizes advanced Bulk Molding Compound (BMC), Sheet Molding Compound (SMC), and Epoxy Molding Compound (EMC). These thermosetting composites incorporate unsaturated polyester resin reinforced with short glass fibers and mineral fillers. Unlike traditional thermoplastics, BMC offers non-melting structural integrity, exceptional arc resistance (>180 seconds), and a Comparative Tracking Index (CTI) rating exceeding 600V (Group I).
To achieve high creepage distance without expanding the physical footprint of the insulator, Flyaford’s engineering team designs high-aspect-ratio shed profiles and corrugated surface ribs. This geometry lengthens the surface path along the insulator, interrupting continuous moisture film formation and suppressing electrical tracking across severe industrial pollution degrees (Pollution Degree 3 and 4).
| Material Metric | Thermosetting BMC/DMC (Flyaford) | Traditional Electrical Porcelain | Standard Polyamide (PA66 Nylon) |
|---|---|---|---|
| Comparative Tracking Index (CTI) | CTI ≥ 600 V (Class I) | CTI ≥ 600 V (Fragile under impact) | CTI 175 - 400 V (Class II/III) |
| Mechanical Impact Resistance | High (Glass Fiber Reinforced) | Very Low (Brittle Failure) | Moderate to High |
| Thermal Endurance & Flame Rating | UL94 V-0 Self-Extinguishing | Non-combustible | UL94 V-2 to V-0 (Subject to melting) |
| Dimensional Precision & Inserts | Precision Molded Brass/Steel Inserts | Poor Insert Tolerances | Moderate Dimensional Creep |
| Arc Resistance (ASTM D495) | > 180 Seconds | > 180 Seconds | < 120 Seconds |
Established in 2007, ZHEJIANG FLYAFORD ELECTRON CO., LTD. (located in Jinyi New District, Jinhua City, Zhejiang Province) operates a state-of-the-art 35,000 square meter manufacturing complex. As a certified National High-Tech Enterprise and Zhejiang Provincial "Specialized, Refined, Distinctive, and Innovative" SME, Flyaford bridges advanced polymer engineering with high-volume industrial manufacturing.
Flyaford serves as the designated academic and industrial research partner for prestigious institutions, including Tsinghua University. We maintain the "Jinhua Feifaf High-Performance Insulator Science and Technology R&D Center", advancing zero-defect insulation technologies for next-generation power infrastructure.
Every high creepage distance insulator batch undergoes rigorous empirical testing inside our high-standard laboratory to guarantee zero dielectric breakdown in mission-critical applications:
Securing international market access requires total alignment with global safety regulations. Flyaford maintains comprehensive certified management systems and product compliance frameworks:
Our high creepage distance insulators carry full CE certification, validating compliance with Low Voltage Directive standards (EN 60664-1, EN 61439-1). This guarantees safe insulation distance, dielectric strength, and creepage withstand within panel boards across the European Single Market.
Beyond standard industrial ISO 9001 quality management, Flyaford strictly implements IATF 16949—the stringent international automotive quality management system. This ensures rigorous FMEA, PPAP, and SPC traceability for heavy-duty EV charging stations and transportation infrastructure.
All raw material formulations carry UL flame retardation verification (UL 94 V-0 self-extinguishing). Furthermore, third-party SGS/TÜV inspection reports confirm complete compliance with RoHS 2.0, REACH SVHC, and EcoVadis sustainability benchmarks.

















Global B2B enterprise procurement officers and switchgear OEMs demand a balancing act between strict technical precision, supply security, and unit cost efficiency. Flyaford delivers a superior OEM/ODM sourcing framework backed by China’s world-class industrial cluster advantages:
Equipped with over 60 high-tonnage compression molding presses and digital automated compounding systems, our facility generates over 200,000 high-precision units daily. Automated material feeding and temperature-controlled curing ensure zero volumetric voids or micro-cracks.
We manage the entire lifecycle in-house—from custom resin compounding (BMC/EMC/PF), steel insert knurling, mold design/manufacturing, to automated de-flashing. This vertical integration reduces tooling lead times for custom insulator prototypes to as fast as 10 days.
By leveraging local raw material supply agreements and automated high-yield production (<100 PPM defect rate), Flyaford delivers a 25%–40% cost reduction compared to European or North American domestic component sourcing without sacrificing engineering standards.
Flyaford manufactures a complete range of low to medium voltage standoff insulators, busbar supports, and structural isolation components tailored for diverse installation geometries:
Compact cylindrical standoff designs with high mechanical cantilever strength for low-voltage power distribution cabinets.
High creepage ribbed insulators specifically optimized for higher dielectric safety and humid environmental operation.
Custom engineered for modular MNS switchgear systems, featuring multi-tier busbar clamp fixation structures.
Pillar-style heavy duty standoff insulators for secondary substation switchboards and transformer bus conduits.
High-strength busbar supports engineered to absorb electrodynamic forces generated during short-circuit faults.
Hexagonal and metric threaded standoff supports for universal mounting in distribution boxes and control centers.
Specially reinforced polymer insulators designed for solar PV inverters and utility energy storage containers.
T-bar slotted composite insulators providing rapid snap-in assembly for high-density control panels.
As global power grids transition toward decentralized renewable generation, smart grids, and electrification of transport, high creepage insulators are vital across diverse demanding operating environments:
High-vibration, high-salinity offshore nacelles demand BMC insulators with non-corroding brass inserts and extended creepage distance to withstand constant salt haze accumulation.
Modern 1500V DC central and string inverters operate at elevated temperatures. Flyaford insulators offer continuous 155°C (Class F) thermal endurance without dielectric softening.
Containerized BESS units demand strict UL 94 V-0 flame barriers and ultra-reliable creepage paths to prevent thermal runaway hazards in high-density DC busway systems.
High-voltage megawatt DC fast chargers utilize IATF 16949 compliant insulators to maintain complete safety against ground fault currents during rapid power transfer.
Ensures complete electrical isolation between phase conductors and grounded metallic enclosure cabinets in compact power distribution networks.
Dampens harmonic resonance and insulates against repetitive high-frequency voltage spikes (dV/dt) produced by modern IGBT power converters.
Resists corrosive chemical fumes (H2S, chlorine) and ambient industrial moisture, preserving high insulation resistance over decades.
With over 20 years of specialized manufacturing experience, Flyaford provides full-spectrum OEM and ODM services tailored to your exact CAD/STEP specifications. Our senior engineering team collaborates directly with your R&D department to select optimal resin matrices, insert materials (brass, zinc-plated steel, stainless steel), and ribbed geometry.













Key engineering insights addressing creepage calculations, material selection, compliance standards, and factory customization.
Discover complete factory-direct insulation solutions for power networks, switchboard panels, and heavy electrical apparatus.