The cable is fixedly laid in the environment with temperature of-40 celsius degree to -50 celsius degree, and environmenttemperature for installation should be no lower than 0 celsiusdegree

The cable is the telephone cable designed for telephone area andtrunk lines, duct and aerial insulations. When the temperature isfrom -30 to 60 degrees centigrade. The electrical and mechanicalperformance shall not be changed.

HYA(5-3600pairs): solid insulated non-filled local cable.

HYAC(5-400pairs): self-supporting (figure 8) aerial cable.

HYAT(5-3600pairs): solid insulated jelly-filled local cable.

Communication cable