Shu Guang
Shu Guang
As the global energy landscape transitions toward decarbonization and smart grid integration, the demand for high-reliability circuit protection components like the BsTypeFuse has reached an all-time high.
The global power infrastructure is currently undergoing a "Digital-Physical Twin" transformation. From the aging grids in North America to the rapid electrification in Southeast Asia, the BsTypeFuse serves as a critical fail-safe. Modern industrial applications now require fuses that can handle not just steady-state overloads, but complex transient harmonics caused by massive renewable energy injections into the grid.
Industrial automation and the rise of Gigafactories necessitate protection devices that minimize downtime. The BsTypeFuse, specifically designed for current-limiting capabilities, ensures that short-circuit energy is extinguished within milliseconds, protecting multi-million dollar switchgear and downstream assets. This is no longer just a component; it is an insurance policy for industrial uptime.
EV charging stations and PV inverters represent a new frontier for fuse manufacturers. These applications involve high DC voltages and unique cycling profiles. Our OEM BsTypeFuse solutions are engineered with silver-plated copper elements and high-purity quartz sand to manage the thermal stresses associated with rapid load fluctuations in green energy ecosystems.
Located in Yueqing, Zhejiang Province—the electrical capital of China—Wenzhou Shuguang Fuse Co., Ltd. is a power technology enterprise integrating research, development, production, sales, and service. The predecessor of our company was the "Yueqing Shuguang Fuse Factory," established in 1992.
For over three decades, we have focused on the frontier of high-voltage electrical protection, evolving from a local manufacturer into a global OEM supplier. Our commitment to "Precision in Protection" has allowed us to serve the world's most demanding utility projects.
We are designated by the Ministry of Electric Power Industry to produce high-voltage current-limiting fuses and zinc oxide arresters that meet the world's most rigorous safety standards.
The products have passed the high-power test station of the Electric Power Research Institute of the Ministry of Electric Power, the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center, and the Xi'an High-voltage Electrical Apparatus Research Institute. All performance tests are qualified.
| Category | Standard Compliance |
|---|---|
| International Standards | IEC 282-2-1995, IEC 60644, IEC 60470, IEC 60282-1, IEC 269-2 |
| Regional Standards | ANSI C37.42, DIN 43625, BS 2692, VDE 0636 |
| National Standards | GB 15166.1, GB 15166.2, GB 15166.5, GB 13593, DL/T640-1997 |
Our fuses are engineered to withstand extreme ambient temperatures and desert environments. We provide localized technical datasheets and compliance certifications tailored to the utility requirements of the GCC and African power authorities.
Adhering strictly to DIN 43625 and VDE standards, our BsTypeFuse series ensures seamless integration into European-standard switchgear. We focus on low-loss characteristics to meet EU efficiency regulations.
In regions with high humidity and lightning frequency, our polymer insulators and expulsion fuses provide enhanced durability and tracking resistance, reducing maintenance costs for rural electrification programs.
In recent years, the company has developed rapidly, and its economic and social benefits have improved significantly. The company continues to deepen and improve the quality management system. High-quality raw materials and sophisticated testing equipment are the backing of our quality assurance system.
We utilize silver-ribbon element technology with precision notches to ensure accurate time-current characteristics (TCC). Our sand-filling process is vacuum-assisted to eliminate air pockets, ensuring superior arc quenching performance.
The next decade of circuit protection is defined by "Intelligence" and "Sustainability".
We are researching the integration of IoT sensors within the fuse body to monitor real-time thermal loading and health status, allowing for predictive maintenance before a fault occurs.
Moving toward fully recyclable ceramic bodies and lead-free soldering processes to align with global ESG (Environmental, Social, and Governance) targets.
As transmission voltages increase to reduce losses, our R&D team is prototyping current-limiting fuses capable of handling 40.5kV and above with compact footprints.
Our BsTypeFuse range is optimized for both current-limiting performance and mechanical durability. We use high-purity silver for the melting element, which ensures a lower power loss (Watt loss) compared to alloy-based elements, leading to cooler operation in enclosed switchgear.
Yes. While we adhere to DIN and IEC standard lengths (like 292mm or 442mm), our manufacturing facility in Yueqing can customize terminal caps and tube lengths for legacy system upgrades or proprietary industrial designs.
We utilize high-strength brown or white glazed ceramics and weather-resistant polymer insulators. Our outdoor drop-out fuses and arresters undergo rigorous salt-fog and UV testing to ensure a service life exceeding 20 years.
Absolutely. We have developed a dedicated series of fuses for PV (Photovoltaic) and Wind power, designed to handle the specific DC fault currents and cyclic loading patterns typical in inverter protection.
