Norstar Gate - Loop Repair

The following describes the work agreement between Customer - Norstar Rach HOA, represented by Jonathan Marianu, and Contractor - Metro Access Control.
High level project steps

1. Customer will remove the asphalt pavement and provide a diggable base.
2. Customer will remove vegetation running parallel to the road providing a clearance width of 18"  running  the length of the pavement. 
3. Contractor will install four preformed loops and reconfigure the detectors to utilize the newly installed loops.
1. 2 Safety Loops  6x16 
2. 1 Exit Loop  6x16 
3. 1 Shadow Loop  6x14
4. Customer will lay new asphalt pavement.
5. Contractor will provide phone support to customer to calibrate the loop sensor and if necessary return to the customer site (On a T&M basis) to calibrate the unit.

Loop Wire
To prolong the life of the loop system the wire must maintain mechanical stability under the stress of flexible asphalt. The loop and lead should be of the "Direct Burial Preformed Loops" type. The cable should be continuous without splices.

Acceptable products are:
Reno - PLH series Preformed loop
http://www.renoae.com/product/traffic/87/26
http://www.signalcontrol.com/products/reno/RenoAE_PLH_and%20PLHR_Preformed_Loop.pdf
2x PLH44-40  6x16 safety
1x PLH44-60  6x16 exit
1x PLH40-60  6x14 shadow
BD Loops - Direct Burial Performed Loops
2x RL44-40  6x16 safety
1x EL44-60  6x16 exit
1x EL40-60  6x14 shadow

Wire Specification
The loop cable shall be a four-conductor, double-jacketed cable.
The individual conductors shall be #18 AWG wire 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 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.



Lead in installation
Contractor will dig the appropriate sized trench and backfill with 2 inches of sand base (provided by customer)
The contractor will pull each of the lead-ins through separate ½” schedule 80 rigid PVC.
The PVC conduit will run from the loop splice connector to the gate operator ensuring that no part of the lead-in cable is exposed to the elements.
An excess of 18 inches of lead-in cable should be provided in the gate operator cabinet.
Contractor will install backer rod fill in the consuit to prevent damage caused by water encroachment
Contrator will provide all conduit fittings and will glue all PVC joints with a a proper PVC solvent cement.
Contrator will seal the ends of all conduit to prevent any entrance of moisture into the conduit


Loop installation
Contractor will create a 2"wide by 4"deep trench and backfill with 1" of glass sand.
Contractor will install the loop wire following the manufactures instructions such as the use of ground stakes, corner brackets and mastic tape.
Contractor will Cover loop and lead-in PVC with with 2½” of sand and will tamp the trenched area to the approximate density of the surrounding ground. No extra material should remain when the backfill procedure is complete.


As Built
Contractor will provide a report on company letterhead indicating the inductance and leakage to ground test values for each loop. An inductance and leakage to ground test shall also be conducted and reported for the total detector lead-in and loop system with the test beingconducted at the gate operator cabinet.

Contractor will move the loop sensors from GO#1 to GO#2 and will terminate the leads in inside the GO cabinet at the field terminal strip.