L. A. Ornamental & Rack Corp 3708 NW 82nd Street Miami, Florida 33147 Office: 305-696-0419 Fax: 305-696-0461 |
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Model PLB Preformed Loop Application: 1/4" wide saw cuts, gated facilities The Model PLB Preformed Loop is a prefabricated loop/lead-in assembly designed to be installed in 1/4“ wide saw cuts. The design allows for variations in the perimeter of the loop slot. There is no need for 45 degree corner cuts. The PLB loop cable, lead-in cable, and splice enclosure are designed for maximum reliability and long life. Wire insulation and cable jackets are Cross-linked Polyethylene (XLPE). XLPE insulation provides excellent thermal, electrical, and physical properties. Note: The perimeter of the PLB Preformed Loop is 6” longer than the specified perimeter of the loop. The additional 6” of cable allows the cylinder depth to be adjusted to accommodate variations in the perimeter of the saw cut. For example: A 6' x 4' loop with 25' lead-in would be ordered as a PLB-20-25. The 20' loop perimeter will be 20’ plus 6”. |
Pre-Form Saw Loops |
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EMX Loop Detectors |
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Direct Burial Preform Loops |
Model PLH Preformed Loop : Highways - Install under Asphalt Overlay or Embed in Concrete 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. 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 Crosslinked 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. |
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Direct Burial Preform Loops |
Diablo Loop Detectors |
EDI Loop Detectors |
Reno Loop Detectors |
EMX Loop Detectors |
RENO Preformed Saw Cut Loop |
The following specification describes the minimum acceptable requirements for a prefabricated inductive loop / lead-in assembly: The loop / lead-in assembly shall be suitable for applications in which the loop / lead-in assembly will be overlaid with hot asphalt or embedded in concrete. The loop cable shall be a four-conductor, double-jacketed cable with a nominal outer diameter of 0.360”. The individual conductors shall be #18 AWG wire (formed from seven strands of #26 AWG copper wire) with a 0.020” thick layer of cross-linked polyethylene (XLPE) insulation. The inner jacket shall be 0.040” thick cross-linked polyethylene (XLPE). The void between the conductors and the inner jacket shall be spiral wrapped with a clear, moisture resistant binder tape and filled with an amorphous water-block compound. The outer jacket shall be 0.035” thick cross-linked polyethylene (XLPE). The lead-in cable shall be a two-conductor, double-jacketed cable with a nominal outer diameter of 0.360”. The individual conductors shall be #16 AWG wire (formed from nineteen strands of #28 AWG copper wire) with a 0.020” thick layer of cross-linked polyethylene (XLPE) insulation. The inner jacket shall be 0.040” thick cross-linked polyethylene (XLPE). The void between the conductors and the inner jacket shall be spiral wrapped with a clear, moisture resistant binder tape and filled with an amorphous water-block compound. The outer jacket shall be 0.042” thick cross-linked polyethylene (XLPE). The cross-linked polyethylene (XLPE) insulation used for wire insulation and cable jacketing shall be capable of withstanding temperatures up to 426˚ Fahrenheit. Splices between the individual loop cable conductors, and the splices between the loop cable conductors and the lead-in cable conductors shall be soldered, sealed, and waterproofed. The enclosure that encapsulates the spliced connections shall be fabricated from a high impact glass impregnated plastic with a minimum thickness of 0.240”. The two halves of the splice enclosure shall be sealed with a water resistant gasket material. The interior cavity of the splice enclosure shall be completely filled with an amorphous water block compound. The splice enclosure shall be submerged in a saltwater solution for three (3) days. At the end of this three day period, the electrical integrity of these splices shall be verified by using a 500 Volt DC MegOhm meter to ensure that the resistance between either lead-in conductor and the saltwater solution is 200 MegaOhms or greater. The loop / lead-in assembly shall be a Model PLH manufactured by Reno A & E or an approved equal. Approved equals shall not be allowed unless approved prior to bid submission. |
Model PLH-R Preformed Loop: Direct Burial, Dirt or Gravel Roadways The Model PLH-R Preformed Loop is a prefabricated loop / lead-in assembly designed for use in direct burial applications. 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. 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. The high visibility outer jacket is formulated from Elexar 8451 Thermoplastic Elastomer (TPE) for superior abrasion resistance and excellent low temperature flexibility. |
Data Sheet: Model PLH-R Installation Instructions PLH-R Installation Instructions Advantages Advantages of Preformed Induction Loops |
PLH Preformed spec Datasheet: Model PLH Installation Instructions PLH Circular Saw Cut Installation PLH Quadrapole Installation PLH Saw Cut Install with asphalt overlay PLH Installation Instructions |
Direct Burial Preform Loops |
Preform Loops |