Meet Riotech’s Preformed Loops
Prefabricated loop / lead-in assembly with an integral check loop, making it ideal for use in Railway applications when connected to a detector with the check loop feature.
Wire insulation and cable jackets are formulated from Cross-linked Polyethylene (XLPE)8 Vital Outputs
Cables are filled with water block gel to prevent water penetration
All splice connections are soldered, sealed, and tested
Splice enclosure is constructed of high impact glass impregnated plastic
Integral check loop to confirm functional status and operational integrity of detection loop
Loop and lead-in cables are flexible for easy handling and installation
Can be configured to suit any geometry; rectangular, round, or Quadrupole
Model PLC-R high visibility (red) outer jacket is formulated from Thermoplastic Elastomer (TPE) for superior abrasion resistance
Key Features
Technical Specifications
Function: The test loop consists of a single turn of wire that runs the entire perimeter of the loop. The detector periodically shorts the test loop simulating a vehicle detection. If the inductance change generated during a test loop check does not match a stored reference value, the detector displays a message indicating a failure of the loop.
Design: The Model PLC is designed to be overlaid with hot asphalt or embedded in concrete. The Model PLC-R is designed for use in direct burial applications. Each component is designed to maximize durability, minimize water penetration, and maintain a flexible form that is easy to install and handle.
Durability: The low profile loop cable and lead-in cable are 0.360” O.D. to resist the effects of reflective cracking that can occur in asphalt. Wire insulation and cable jackets are constructed with the optimal thickness of Cross-linked Polyethylene (XLPE) necessary to ensure a long, trouble free life. XLPE insulation provides excellent thermal, electrical, and physical properties and is recognized for its outstanding resistance to moisture and chemicals.
Model Options: