SPECIAL SILICA FIBER
Gun Sight Fiber-Optic Arc-Flash Protection Sensor
This is a fiber-optic arc-flash protection component — non-conductive light-collecting fiber/probe for millisecond arc detection in low- and medium-voltage switchgear.
Specifications
- Type
- Fiber Optic Cable
- Color
- Orange,Yellow ,Red ,Green
- Application
- Scientific,Gun sights, modeling, and artistic
- Core Material Refractive Index
- 1.49
- Max receive angle
- 60
- Operation Temperature
- -20~70 °C
- Bend Radius
- 30mm
- Attenuation (dB/km)
- ≤350(650nm)
- Core Material
- PMMA
- Item
- Fluorescent fiber optic
- Diameter
- 0.5mm 0.75mm 1mm 1.5mm 2mm,2.5mm ,3.0mm
Gun Sight Fiber-Optic Arc-Flash Protection Sensor
This is a JINSHANG TECH optical sensing element for arc-flash relays, transmitting arc light from within a panel to a fast-acting protection unit.
Manufactured for production use rather than as a one-off sample, the unit is built to a stable fiber specification so orders can be repeated with consistent dimensions and performance.
Key Characteristics
- Minimum bend radius: 30mm
- Refractive index figures: 1.49
- Housing/jacket color: Orange,Yellow ,Red ,Green
- Core/fiber material: 1.49
- Fiber diameter: 0.5mm 0.75mm 1mm 1.5mm 2mm,2.5mm ,3.0mm
- Attenuation rated at ≤350(650nm) over the operating wavelength
- Engineered to support millisecond-class relay tripping
- Point or loop coverage for complete compartment monitoring
Typical Applications
The unit is commonly used for arc-flash detection in low- and medium-voltage switchgear, retrofit arc-light sensing for motor control centers and panels, and fiber probes paired with arc-protection relays and inductors. The result is a reliable, repeatable build that tolerates the routing, vibration and repeated handling typical of production installations.
Frequently Asked Questions
Q: Why use fiber rather than an electrical sensor? A: The fiber is non-conductive and immune to EMI, so it can be placed deep within high-voltage compartments without adding an electrical ignition path.
Q: How does fiber-optic arc-flash detection work? A: A light-collecting fiber or probe inside the panel captures the flash of an arc and sends it to a relay, which trips the breaker in milliseconds — far faster than overcurrent detection alone.
Q: Where is it installed? A: Point sensors cover likely fault locations, while loop fiber spans a whole compartment, chosen by the switchgear layout.
Q: What components are needed? A: The sensing fiber/probe is paired with an arc-protection relay, current-confirmation units and an inductor/trip system as specified by the protection design.
See the BH Cables assembly range for rugged installations at www.bhcables.com.
