PLH Preformed High Temperature Inductive Loop 
 

High Temperature Preformed Paveover Inductive Loop


 

Loop & Lead-in cables are flexible for easy handling and installation.

Configurable to suit any geometry rectangular, round, chevron. Quadra pole loop are available.

Wire insulation and cable jackets are formulated from Cross-linked Polyethylene (XLPE) and will withstand temperatures up to 426° Fahrenheit

Cables are filled with water block gel to prevent water penetration.

All splice connections are soldered, sealed and tested before being sealed in the splice enclosure.

 

Splice enclosure is constructed of high impact glass impregnated plastic (.25" minimum thickness).

Various configurations are available to suit most commonly sized loop installations and are provided with a 50' long lead-in cable.  Custom sizes and lead-in lengths are available.  Please call for details.

Loop layouts available in perpendicular

or parallel lead positions 

High Temperature Paveover Inductive Loop Lead layouts

Ordering:  To generate a part number for ordering the PLH Loop insert the total perimeter length in place of the XX. Insert the total lead length required in place of the" YY"   If you require the perpendicular tee layout add -A as a suffix to the part number.
Example:
Loop Perimeter
Lead-in Cable Perpendicular to Loop      
Lead-in Cable length
Note: All dimensions in feet
for all Paveover applications
Optional
Model#  PLH - XX - YY - A

Overview
 The Model PLH Preformed Loop is a prefabricated loop & lead-in assembly designed to be overlaid with hot asphalt or embedded in concrete.  Each component of the PLH (loop cable, lead-in cable, and splice enclosure) is designed to maximize durability, minimize water penetration, and maintain a flexible form that is easy to install and handle.  Both the low profile loop cable and lead-in cables are 0.365" 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.
Specification

High Temperature Paveover Induvctive Loop Cross Section

Double Jacketed, Four Conductor Loop Cable (0.365" nominal O.D.)

Outer Jacket - 0.035" (nominal) XLPE Insulation

Inner Jacket - 0.030" (nominal) XLPE Insulation

Clear Moisture Resistant Mylar Binder Tape

Water Block Gel

XLPE Insulation, 0.020 (nominal)

Conductor: #18 AWG (Seven Strands of #26 AWG Copper Wire)

Outer Jacket - 0.075" (nominal) XLPE Insulation

Clear Moisture Resistant Mylar Binder Tape

Water Block Gel

XLPE Insulation, 0.040 (nominal)

Conductor: #16 AWG (Seven Strands of #28 AWG Copper Wire)

High Temperature Paveover Induvctive Lead Cross Section

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loop Installation - Asphalt Overlay:
1. Place the PLH Preformed Loop in the proper position and orientation on the asphalt base lift.
2. Route the lead-in cable to the desired termination point.
3. Use the fiberglass backed mastic tape (included with the PLH) cut into 2" x 4" or 3" x 4" strips to hold the loop and lead-in cable in place.
4. Apply the top lift.
Note:  When applying the top lift, make certain that the loop cable does not get pulled into the augers on the paving machine.

 

 

 

 

Single jacketed Tow Conductor Lead-in Cable ( 0.365" nominal O.D.)

 

High Temperature Paveover Inductivre Loop Tape down Layout

 Type "A" Lead
Tape Configuration

High Temperature Paveover Inductive Loop Tape Layout for "A" style lead

 

Asphalt Overlay

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PLH Loop Ready for Shipment

 

PLH Preformed High Temperature Inductive Loop coiled, in a box, ready for shipping

PDF Cut Sheet