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Product Overview
When a multi-megawatt wind turbine or an exposed offshore oil rig takes a direct lightning hit, millions of volts seek the fastest path to the earth—typically devastating the main electrical distribution boards (MDB) in the process. The CHNAILE Heavy-Duty 4-Pole Type 1 Surge Protective Device (SPD) is an elite atmospheric discharge diverter built to confront this exact peril. Unlike Type 2 transient absorbers, this Class I arrester is fortified to handle the prolonged, terrifying thermal energy of a 10/350μs direct lightning strike. By rapidly clamping the 3-phase grid to the ground matrix, it prevents explosive internal flashovers, securing capital-intensive industrial control centers against the most violent forces of nature.
Technical Parameters
Device Category: | Heavy-Duty Lightning Arrester / Surge Protective Device (SPD) |
|---|---|
Protection Class: | Type 1 (Class I) - Specifically for Direct Atmospheric Strikes |
Poles Configuration: | 4P (Synchronized 3-Phase + Neutral Surge Diversion) |
Max Continuous Operating Voltage (Uc): | AC 385V (Tolerates heavy industrial grid fluctuations) |
Impulse Discharge Current (Iimp, 10/350μs): | 25kA per pole (Massive direct strike endurance) |
Nominal Discharge Current (In, 8/20μs): | 25kA |
Voltage Protection Level (Up): | ≤ 2.0kV (Restricts lethal lightning spikes) |
Architecture: | Fixed Base with Modular Pluggable Cartridges |
Standard Compliance: | GB/T 18802.1 / IEC 61643-1 |
1. Ultimate Direct-Strike Grounding Mechanics
10/350μs Plasma Diversion (Iimp 15kA): The 10/350 microsecond lightning waveform carries significantly more destructive charge than a standard switching surge. The heavy-duty internal components are metallurgically formulated to absorb and safely channel up to 15,000 Amps of raw, sustained lightning plasma directly to the earth matrix without the casing exploding.
Aggressive Voltage Clamping (Up ≤ 2.0kV): Despite absorbing tens of thousands of amps from a lightning hit, this high-performance Class I arrester aggressively clamps the residual let-through voltage entering the factory to just 2.0kV. This ensures the sensitive insulation of downstream inverters, PLCs, and VFDs is never compromised.
Phase-to-Earth Equipotential Shield: By installing this 4P device at the absolute point of grid entry (LPZ 0A transition), it creates a robust equipotential bonding network. It ensures all electrical lines rise and fall in voltage simultaneously during a strike, preventing internal lateral arcing inside explosive chemical zones.
2. Industrial-Grade Structural Engineering
Hot-Swappable Modular Cartridges: Lightning arresters are sacrificial by nature. The CHNAILE Type 1 SPD utilizes a highly efficient two-piece architecture. During a scheduled maintenance window after a severe storm season, engineers can rapidly extract a depleted module and plug in a new one without de-energizing the entire wind turbine or refinery MDB.
Visual Degradation Status Indicators: Each of the four poles features an integrated mechanical inspection window. The window remains uncolored during normal operation but turns distinctly red when the internal surge capacity is exhausted, providing an immediate visual cue for prompt module replacement.
Thermal-Shock Immune Housing: Channeling immense lightning currents generates instantaneous extreme heat. The base and plug housings are molded from specialized V0-rated thermosetting polymers that actively resist thermal deformation, guaranteeing structural integrity in blazing desert solar farms or frozen offshore rigs.
3. Target Application Scenarios
Because of its uncompromising 10/350μs rating and Type 1 classification, this SPD is exclusively mandated by global EPCs for high-risk, exposed infrastructure:
Utility-Scale Wind Farms: The absolute mandatory first line of defense installed inside the nacelle and base control panels of towering wind turbines to survive frequent direct strikes.
Petrochemical Refineries & Gas Plants: Providing vital equipotential bonding for expansive industrial facilities processing flammable materials, where an internal lightning spark means total disaster.
Heavy Rail & Traction Substations: Protecting the primary low-voltage input sides of municipal railway substations from direct atmospheric discharges hitting overhead transmission lines.
Deep-Space Tracking & Radar Stations: Securing the massive incoming power feeds of highly exposed, high-altitude communications and aerospace infrastructure.
4. Global B2B Partnership with CHNAILE Factory
Factory-Direct Lightning Protection: Bypass intermediary trading networks. We offer aggressive wholesale pricing on premium Class I SPDs, significantly lowering the BOM for your major renewable energy and Oil & Gas infrastructure bids.
Rigorous 10/350μs Impulse Testing: We do not gamble with atmospheric physics. Every Type 1 SPD batch is subjected to brutal 10/350μs impulse current generator testing in our high-voltage laboratory to ensure 100% clamping reliability before global export.
Custom OEM Solutions for EPCs: We provide comprehensive white-labeling services, including bespoke module laser-printing and specialized remote-signaling auxiliary contact integration to match your proprietary surge protection distribution panels.
