Direct Burial Multi Conductor Wire For Use In Sprinkler Systems. Conductor construction is soft drawn bare copper meeting the requirements of ASTM Specification B-3. The 18 awg conductors are solid copper.
Always allow 1 strand for a ground wire. Use a higher strand wire if you might expand the system later. The insulation is a color coded high quality polyvinylchloride (PVC) for systems applications of up to 30 volts and conductor temperatures up to 60C. The outer jacket is linear low density, high molecular weight, sunlight resistant, polyethylene (PE) with a nylon cord.

Specifications:
Application: Suitable for use a direct burial control cable for wiring central control systems to field controls.
Conductor: Soft drawn bare copper (ASTM Spec. B-3), Solid (18 awg)
Insulation: Color coded polyvinylchloride (PVC)
Outer Jacket: Black polyethylene (PE)
Temperature: Up to 60C
Voltage: Up to 30 volts