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Product Overview
In the complex hierarchy of commercial lightning protection, stopping a direct atmospheric discharge requires specialized physics. Standard Type 2 surge protectors are designed only for residual switching surges (8/20μs) and will instantly explode if subjected to a direct strike. The CHNAILE Heavy-Duty 4-Pole Type 1 Surge Protective Device (Class I SPD) is engineered explicitly for the brutally sustained thermal energy of a 10/350μs lightning waveform. Installed at the absolute boundary of Lightning Protection Zones (LPZ 0A to LPZ 1), this 385Vac device forces massive 15,000-Ampere grid-entering surges directly to the earth. It creates a robust equipotential bonding network that guarantees the survival of your main switchboards, elevators, and critical building automation servers.
Technical Parameters
Device Category: | Lightning Arrester / Surge Protective Device (SPD) |
|---|---|
Protection Class: | Type 1 (Class I) - Designed for Direct Lightning Strikes |
Poles Configuration: | 4P (Simultaneous 3-Phase + Neutral Surge Diversion) |
Max Continuous Operating Voltage (Uc): | AC 385V |
Impulse Discharge Current (Iimp, 10/350μs): | 15kA per pole (Sustained lightning energy) |
Nominal Discharge Current (In, 8/20μs): | 15kA |
Voltage Protection Level (Up): | ≤ 2.0kV (Restricts lethal voltage spikes) |
Architecture: | Fixed Base with Pluggable Cartridges |
Standard Compliance: | GB/T 18802.1 / IEC 61643-1 |
1. Elite Atmospheric Discharge Eradication
10/350μs Direct Strike Immunity (Iimp 15kA): A 10/350 microsecond waveform contains exponentially more destructive thermal charge than standard grid surges. The ultra-heavy-duty internal Metal Oxide Varistors (MOVs) and specialized spark gaps inside this Type 1 SPD are metallurgically formulated to absorb and safely ground this catastrophic plasma without self-destruction.
LPZ 0A to LPZ 1 Equipotential Bonding: According to international IEC 62305 standards, any commercial facility with external lightning rods must have a Type 1 SPD at the main service entrance. This device violently clamps the incoming grid phases to the earth's potential during a strike, preventing side-flashing and insulation breakdown across the building's internal wiring.
Low Let-Through Voltage (Up ≤ 2.0kV): Despite absorbing tens of thousands of amps, this high-performance arrester successfully clamps the residual voltage entering the building to a safe 2000 Volts, ensuring downstream Type 2 SPDs and circuit breakers are not overwhelmed
2. Specialized Maintenance & Structural Engineering
Hot-Swappable Modular Cartridges: Lightning arresters are sacrificial components designed to degrade over decades of protecting your facility. The CHNAILE Type 1 SPD features independent, pluggable modules. Facility engineers can swiftly extract a depleted cartridge and insert a fresh one without powering down the commercial Main Distribution Board (MDB).
V0-Rated Thermal Exclosure: Channeling massive atmospheric plasma generates extreme, instantaneous heat. The base and plug housings are molded from premium, impact-resistant V0 thermosetting polymers that actively resist thermal deformation and prevent panel fires.
High-Torque Grounding Terminals: The safe diversion of 15kA relies entirely on the ground connection. The massive hex-screw PE (Protective Earth) and phase terminals are engineered to accept ultra-thick grounding cables, ensuring a zero-resistance path to the earth matrix.
3. Target Application Scenarios
Due to its uncompromising 10/350μs rating and Type 1 classification, this SPD is exclusively mandated by global MEP (Mechanical, Electrical, and Plumbing) contractors for:
Skyscraper Service Entrances: The absolute mandatory first line of defense installed in the main basement electrical rooms of high-rises equipped with rooftop lightning protection systems.
Heavy Manufacturing Plants: Providing equipotential bonding for expansive industrial facilities with sprawling, exposed metal roof architectures.
Substation Low-Voltage Sides: Protecting the low-voltage secondary side of municipal grid transformers from direct atmospheric discharges hitting overhead transmission lines.
Stadiums & Exhibition Centers: Securing the massive incoming power feeds of large open-air public venues against extreme weather anomalies.
4. Global B2B Partnership with CHNAILE Factory
Factory-Direct Infrastructure Defense: Bypassing intermediary trading networks allows us to offer aggressive wholesale pricing on premium Class I SPDs, significantly lowering the BOM for your commercial lightning protection projects.
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 Integrators: We provide comprehensive white-labeling services, including bespoke module printing and specialized remote-signaling auxiliary contacts to match your proprietary surge protection brands.
