BP Professional Solution
Comprehensive Protection | Direct Strike Against Surge Threats
Stable Operation | Extend Luminaire Lifespan
Energy Saving & Efficiency | Optimize Power Environment
- 01 Protection Needs
Analyze overvoltage threats faced by outdoor lighting systems; explore surge types, causes, and
direct/indirect equipment damage costs.
- 02 Design Principles
Follow multi-stage protection logic; scientifically plan SPD installation points; balance electrical
safety, compatibility, and engineering universality.
- 03 Solution Portfolio
Detailed breakdown of BP series surge protective device (SPD) coordinated solutions.
- 04 Application Areas
Covering urban arterials & branch road lighting, industrial park smart lighting, municipal public
facilities, underground & surface parking, professional stadiums & long tunnels — reliable
protection for all LED lighting systems.
- 05 About Us
BP specializes in surge protection, offering end-to-end services from solution design and product
supply to testing & certification. With internationally accredited testing capabilities and expert
technical support, we are a trusted global partner for outdoor lighting safety.
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01 Protection Needs: Why Protection Is Required?
01.The Dual Nature of LED Technology: Superior Performance & Inherent Vulnerability
Core Value: Energy efficiency 50%+ higher than traditional sources; supports smart dimming & flexible design; theoretical lifespan up to 50,000 hours — significantly lowering long-term OPEX with both economic and environmental benefits.
Potential Risk: Higher upfront hardware cost; highly integrated internal driver circuits are extremely sensitive to grid surges, overvoltage, and harmonic interference — easily causing irreversible electronic component damage.
02 Surge Protection: The Critical Defense Line for Securing ROI
Extend System Lifespan：Effectively intercept transient overvoltage surges from the grid; prevent electronic components from being damaged by instantaneous high voltage or accelerated aging; ensure LED luminaires reach their designed service life.
Secure ROI：Avoid premature replacement and additional investment caused by unexpected equipment damage; align energy-saving returns with equipment lifecycle; ensure project economic viability.
Reduce O&M Costs：Significantly reduce emergency repair frequency, labor, and traffic control costs for outdoor lighting systems; prevent single-point failures from compromising overall lighting performance; improve system stability and reliability.
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01 Protection Needs: Five Types of Overvoltage
01 Earth Potential Rise (EPR): Caused by nearby lightning strikes; magnitude depends on soil resistivity; easily conducted to equipment via grounding systems.
02 Switching Overvoltage:
Originates from normal circuit switching operations, e.g., all luminaires turning on simultaneously, creating instantaneous voltage fluctuation impacts.
03 Line-Induced Overvoltage: Strong electromagnetic fields from lightning strikes within 500m induce high voltage in wiring, propagating over long distances.
04 Direct Lightning Strike: Lightning directly strikes luminaires, poles, or power lines, releasing massive pulse energy with extremely high destructive power.
05 Permanent or Temporary Overvoltage (POP): Caused by power system faults such as neutral wire breakage or severe three-phase load imbalance, leading to sustained abnormal voltage rise.
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01 Protection Needs: Damage & Repair Costs
Inherent Immunity Cannot Withstand Real-World Surges:LED drivers have only 2–4 kV immunity, far below the 10 kV/10 kA transient surges generated by natural lightning. This makes drivers the most vulnerable weak link in outdoor or complex grid environments.
Hidden Costs Surge, Undermining ROI:Unprotected luminaires suffer premature failure, directly increasing equipment replacement costs and incurring high labor O&M expenses. Frequent failures reduce system reliability, ultimately lowering project ROI and damaging brand reputation.
Service Continuity Is the Safety Bottom Line:In road lighting, security monitoring, and similar scenarios, lighting interruption means a breach of the safety defense line. Ensuring continuous lighting system operation is not only a functional requirement but also a commitment to public safety responsibility.
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02 Design Principles: Multi-Stage Protection
Outdoor lighting systems are vulnerable to surge impacts due to long cable transmission runs, necessitating a multi-stage protection strategy of main-panel energy diversion + near-luminaire fine protection. Through multi-phase energy interception, residual voltage is reduced layer by layer, ensuring expensive LED drivers and luminaires are protected from damage. This is the cornerstone of building a highly reliable system.
Stage 1: Main Distribution Board Energy Diversion (40 kA)
Install a high-energy SPD at the main lighting panel to divert the vast majority of surge energy. Combined with a POP power-frequency overvoltage protection device, residual voltage is reduced to a threshold acceptable to downstream equipment, forming the first solid line of defense.
Stages 2/3: Near-Luminaire Fine Protection (10 kV)
Install secondary protection close to the luminaire to further cut residual voltage and eliminate induced surges in transmission lines. This ensures the final voltage reaching the light source stays within an absolutely safe range, greatly improving system safety.
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02 Design Principles: Protection Location — Series vs. Parallel
Parallel Connection: Service Continuity Priority || SPD end-of-life: luminaire remains connected, but SPD failure cannot be visually determined, potentially leaving the luminaire unprotected for extended periods — a safety hazard.
Series Connection: Protection Effectiveness Priority || On SPD failure, luminaire automatically shuts off, providing clear failure indication, forcing timely maintenance, ensuring the lighting system is always under effective protection.
Why Is Series Connection Strongly Recommended?
“Visible failure” is safer than “hidden failure.” Although series connection may cause luminaires to go out when the SPD fails, this is an unmistakable maintenance signal that effectively prevents subsequent equipment damage caused by undetected SPD failure. From the perspective of system reliability and long-term maintenance, series is a more optimal selection for engineering applications.
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02 Design Principles: Safety & Universality
Safety and universality are the cornerstones of stable luminaire system operation. Faced with unknown installation environments and grid conditions, only SPDs with universal compatibility and high fault tolerance can eliminate wiring error risks, accommodate diverse global grid configurations, and provide worry-free assurance throughout the entire workflow of design, construction, and operation.
01 Installation Fault Tolerance: Eliminate Wiring Anxiety:L/N line reverse-connection tolerance prevents equipment damage from construction errors at the source; supports flexible series or parallel wiring, balancing power supply continuity and surge protection priorities, adapting to various on-site construction requirements.
02 Global Compatibility: Break Geographical Barriers:Perfectly compatible with major global power distribution systems, eliminating the need for region-specific designs; stably supports 230V L-N, L-L, and other voltage classes, achieving a true one luminaire for the global market compatibility standard.
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02 Design Principles: Common-Mode & Differential-Mode Protection
Differential-mode surge (line-to-line interference) occurs between phase line (L) and neutral line (N), constituting an inter-line voltage transient pulse. It directly impacts the equipment power input terminal, mainly affecting power supply loop stability and normal equipment operation.
Common-mode surge (line-to-ground interference) occurs between power line and ground (PE), with voltage differences reaching tens of thousands of volts. For outdoor luminaires on metal poles, it easily triggers high-voltage arcing — the primary cause of equipment destruction and safety incidents.
Critical Protection Strategy: Given the metal structural characteristics of outdoor lighting, SPDs with common-mode suppression capability must be deployed. They effectively clamp ground potential differences, block arcing paths, eliminate safety hazards at the source, and ensure long-term stable system operation.
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02 Design Principles: Over/Under Voltage (Permanent/Temporary Overvoltage) Protection
Over/under voltage refers to voltage exceeding 20% of the rated value and lasting for seconds, minutes, or even hours. Usually caused by neutral wire breakage or load imbalance, it causes irreversible equipment damage. The only effective protection method is to promptly disconnect the load.
Core Protection Value & Advantages
Automatic Reconnection Mechanism: Leverages the built-in intelligent contactor of the lighting system to automatically reclose once voltage returns to normal, eliminating the need for on-site manual reset and ensuring rapid restoration of lighting operation.
Compliant with EN 50550 International Standard: Strictly adheres to European electrical safety standards; precise tripping curves perfectly match regulatory requirements, providing industrial-grade reliable protection for LEDs and supporting equipment.
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03 Solution: BP Terminal Series — The Most Versatile SPD on the Market
Full Grid Compatibility Design:Adapts to all grid configurations; LN/NL wiring reversible; supports 230V L-N or L-L systems; series or parallel connection both available.
International Authoritative Certification:Awarded IECEE CB Scheme certification by DEKRA, fully compliant with IEC 61643-11 standards; quality proven in global markets.
Flexible Installation Methods:Equipped with dedicated mounting flange; supports upright or horizontal installation; flexible wiring schemes easily adapt to various luminaire structures.
Dual End-of-Life Warning:Automatically cuts the circuit in series mode to protect luminaires; combined with a prominent LED status indicator for instant visual fault identification.
Zero Leakage Current, Ensuring Absolute Safety:All BP Terminal Series products feature a zero ground-leakage current design, completely eliminating safety hazards from leakage current while avoiding unnecessary energy loss. Specially suited for commercial and industrial lighting scenarios with the highest safety requirements.
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03 Solution: BP Wire Series — Ultra-Compact SPD
The BP Wire Series is designed for LED luminaires with limited internal space — an ultra-compact surge protective device (SPD). As a universal solution, it perfectly adapts to all grid configurations and luminaire insulation classes (Class I & II), balancing compact size with powerful protection performance.
Maximum Discharge Current (T2 Imax) / 10 kA | High-Energy Surge Withstand
Open-Circuit Voltage (T3 Uoc) / 10 kV | Excellent Voltage Insulation
Convenient Connection Design / Supports series/parallel installation, wire input/output, compact design saves space.
Smart Failure Indication / Optical LED indicator + internal trip disconnect, dual protection, intuitive status display.
International Authoritative Certification CB-Scheme IEC 61643-11 。
An ultra-compact SPD purpose-built for LED lighting, delivering uncompromised surge protection in minimal space, ensuring long-term stable operation of the lighting system.
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03 Solution: BP Over/Under Voltage Series — Robust Protection for Unstable Grids
Specially designed for LED lighting systems; compact and durable; adapts to all types of harsh outdoor environments; provides long-lasting reliable protection for LED lighting.
Minimum Protection Voltage:Cuts power below 150V AC to prevent luminaire damage from low-voltage overheating.
Open-Circuit Voltage Rating:Cuts power above 280V AC to prevent overvoltage damage to electronic components.
Rated Operating Voltage:Up to 440V AC, compatible with high-voltage lighting systems.
Flexible Installation:Adapts to various wiring scenarios.
Ultimate Safety Design:Zero normal-state leakage current; reversible positive/negative polarity wiring.
Full System Compatibility:Adapts to all types of power distribution systems.
Core Advantage: The BP Over/Under Voltage Series is the preferred protection solution for outdoor LED lighting projects.
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03 Solution: BP Over/Under Voltage + SPD Combo Solution
Innovative SPD + Over/Under Voltage 2-in-1 design — the perfect complement to lighting surge protection. It not only handles instantaneous surge impacts but also effectively defends against permanent or temporary over/under voltage, providing an all-around voltage safety barrier for power distribution systems. It is the ideal companion solution for LED lighting.
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04 Application Areas
BP’s solution portfolio is engineered for every lighting scenario, delivering reliable overvoltage protection for complex outdoor power environments. It keeps systems running, extends LED lifespan, maximizes your lighting ROI, and builds a safer foundation for urban and industrial lightscapes.
Street Lighting || Smart streetlights for urban arterials and branch roads; ensures nighttime traffic safety; adapts to variable outdoor grid environments.
Industrial Lighting || Factory workshops and warehouse logistics lighting; resists industrial electromagnetic interference; ensures clear visibility in production environments.
Public Lighting || Park, plaza, and commercial district landscape lighting; balances aesthetic effect with 24/7 stable operation.
Parking Lot Lighting || Energy-efficient lighting for underground and surface parking lots; provides durable, stable protection in humid or enclosed environments.
Sports Venues || Professional events and public fitness center lighting; handles high-power loads and frequent switching voltage shocks.
Tunnel Lighting || Segmented traffic tunnel lighting; adapts to the special environment of long, enclosed spaces; ensures driving safety.
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05 Why Choose BP?
Backed by 20 years of lightning and surge protection expertise, BP delivers end-to-end overvoltage protection solution portfolios for the LED lighting industry — from products to services. Your trusted safety partner.
Full Product Series Coverage:Providing dedicated SPDs for all LED lighting scenarios, covering comprehensive protection needs for indoor/outdoor, commercial, and industrial lighting.
Expert Technical Consultancy:Senior engineer team provides one-on-one technical support, offering professional system protection design and product selection advice for your projects.
Customized Solutions:Tailor-made surge protection products and system integration solutions for special installation environments and personalized requirements.
Authoritative Testing & Certification:Internationally accredited laboratory capable of providing luminaire immunity testing and safety certification services compliant with IEC and national standards.
Safety Certification Adds Value to Your Products
We ensure perfect coordination between LED luminaires and SPDs, verifying product reliability through rigorous testing. For large-scale projects, we provide third-party certifications compliant with international standards. This not only serves as a safety endorsement for your products but also significantly enhances market competitiveness and customer trust.
