1、 Executive standard: Q / 21070305-4.40-2011, refer to DIN 19245, en 50170 and IEC 61158-2
2、 Purpose: it is used in the Profibus and FIP field bus control system in the wind turbine cabin to transmit bidirectional, serial and full digital automatic control signals.
3、 Service conditions:
1. The rated voltage U0 / u is 250V
2. The long-term allowable working temperature of cable conductor is 70 ℃
3. Minimum bending radius of cable: the minimum bending radius of unshielded cable is 6 times of cable diameter, and that of shielded cable is 8 times of cable diameter
4. Suitable minimum ambient temperature of cable: - 40 ℃
