SMA905 is a common type of fiber optic connector, and its ferrule is made of ceramic or metal. Fiber optic products such as SMA905 patch cords have the characteristics of high precision, high damage threshold and high ferrule concentricity, which can ensure the transmission of optical signals with low loss, high speed and high accuracy. In the arc protection system, it can quickly and accurately transmit the optical signal detected by the arc sensor to the main control unit, so that the main control unit can make decisions in time and issue corresponding protection action instructions, thereby realizing rapid detection and protection against arc faults and protecting the safety of power equipment and personnel.
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Core features
1. High-precision and low-loss transmission
Felt material advantage: SMA905 jumper uses ceramic or stainless steel ferrules to ensure precise alignment of the fiber end face with the light source or sensor, greatly reducing insertion loss. This high-precision feature is crucial in arc protection and can avoid protection delays or misjudgments caused by signal attenuation.
Wide spectrum compatibility: Supports a wide wavelength range from ultraviolet to near-infrared, and can be adapted to different types of arc sensors (such as ultraviolet or visible light detection) to meet the needs of optical signal transmission in complex environments.
2. High temperature resistance and high power tolerance
Improved structural design: In response to the high temperature and strong light that may occur in arc faults, SMA905 jumpers use glue-free processes, air gap protection, or grooved ferrules to avoid the problem of joint burning caused by high-temperature melting of epoxy resin or excessive optical power. Experiments show that this type of design can reduce the joint temperature by more than 60°C and significantly improve the service life.
3. Anti-electromagnetic interference and insulation
Fiber optic medium characteristics: As an optical signal transmission carrier, the SMA905 jumper is completely unaffected by the strong electromagnetic field and ground potential difference in the power system. Compared with traditional cables, it can ensure that arc light signals are transmitted without distortion in complex electromagnetic environments such as switch cabinets and transformers.
Insulation safety: The optical fiber itself is made of glass or plastic, and no additional insulation measures are required between it and high-voltage equipment, and it will not become a conduction path for fault currents. Especially when the arc light causes insulation breakdown of peripheral equipment, it can still work stably.
