International Municipal Signal Association(IMSA Series)
IMSA 19-5/20-5(Traffic Signal Cable)
Application and Description
These cables are designed for use in severe service in underground conduit or as aerial cable supported by a messenger or for direct earth burial either as fire protective signaling cable or as a traffic signaling cable.
Cable Construction
- Conductor: Solid bare copper per ASTM B-3(stranded copper is optional)
- Insulation: Polyethylene(PE)
- Inner sheath: Polyethylene(PE)
- Shield: Corrugated copper tape- 15% minimum overlap
-Outer sheath: IMSA 19-5-Black Polyvinyl chloride (PVC)/
Color Code
Conductor No. | Insulation Color |
Stripe Color |
Conductor No. | Insulation Color |
Stripe Color |
1 | Black | – | 14 | Green | White |
2 | White | – | 15 | Blue | White |
3 | Red | – | 16 | Black | Red |
4 | Green | – | 17 | White | Red |
5 | Orange | – | 18 | Orange | Red |
6 | Blue | – | 19 | Blue | Red |
7 | White | Black | 20 | Red | Green |
8 | Red | Black | 21 | Orange | Green |
9 | Green | Black | 22 | Black | – |
10 | Orange | Black | 23 | White | – |
11 | Blue | Black | 24 | Red | – |
12 | Black | White | 25 | Green | – |
13 | Red | White |
Temperature Rating
75°C
Voltage Rating
600 V
Cable Parameter
AWG | No. of Pairs |
Solid or Stranded | Insulation Thickness | Inner Sheath thickness | Outer Sheath thickness | Overall Diameter | Cable Weight | |||||
inches | mm | inches | mm | inches | mm | inches | mm | Lbs./ Kft | Kg/Km | |||
14 | 4 | Solid | 0.030 | 0.76 | 0.045 | 1.14 | 0.06 | 1.52 | 0.57 | 14.48 | 168 | 250 |
14 | 7 | Solid | 0.030 | 0.76 | 0.045 | 1.14 | 0.06 | 1.52 | 0.63 | 16.00 | 205 | 305 |
14 | 12 | Solid | 0.030 | 0.76 | 0.045 | 1.14 | 0.06 | 1.52 | 0.78 | 19.81 | 345 | 513 |
12 | 4 | Solid | 0.025 | 0.64 | 0.045 | 1.14 | 0.06 | 1.52 | 0.63 | 16.00 | 194 | 289 |
12 | 7 | Solid | 0.025 | 0.64 | 0.045 | 1.14 | 0.06 | 1.52 | 0.75 | 19.05 | 289 | 430 |
12 | 12 | Solid | 0.025 | 0.64 | 0.045 | 1.14 | 0.06 | 1.52 | 0.94 | 23.88 | 468 | 696 |