International Municipal Signal Association(IMSA Series)
IMSA 50-2 (Traffic Loop Detector Lead-In Feeder Cable)
Application and Description
These cables are used in municipal signal systems as lead-in cable or for use in communication circuits where a low capacitance is needed, suitable for underground conduit, as aerial cable supported by messenger, or in raceways in buildings.
Cable Construction

- Conductor: Stranded tinned copper per ASTM B-8 & B-33,18 – 12 AWG (19 Strand)
                        - Insulation: Low density polyethylene (LDPE)
                        - Color code: Black & clear
                        - Pairing: Two insulated conductors twisted together
                        - Shield: Aluminum foil shield with tinned copper drain wire
                        - Sheath: Black low density polyethylene (LDPE)
Temperature Rating
75°C
Voltage Rating
600 V
Cable Parameter
| AWG | No. of Conductor  | 
            Solid or Stranded | Insulation Thickness | Sheath thickness | Overall Diameter | Cable Weight | ||||
| inches | mm | inches | mm | inches | mm | Lbs./ Kft | Kg/Km | |||
| 18 | 2 | 19strand | 0.030 | 0.76 | 0.030 | 0.76 | 0.27 | 6.86 | 31 | 46 | 
| 16 | 2 | 19strand | 0.030 | 0.76 | 0.030 | 0.76 | 0.29 | 7.37 | 40 | 60 | 
| 14 | 2 | 19strand | 0.030 | 0.76 | 0.030 | 0.76 | 0.32 | 8.13 | 56 | 83 | 
| 12 | 2 | 19strand | 0.030 | 0.76 | 0.030 | 0.76 | 0.364 | 9.25 | 80 | 119 | 
