1、 Executive standard: Q/TAT7689

2、 Usage: This cable is an intrinsic safety cable, also known as an intrinsic safety cable. It has low capacitance and low inductance, as well as shielding and anti-interference performance, thus its explosion-proof performance is better than that of general computer cables and control cables. It is suitable for use as a propagation line in circuits such as distributed systems and automated detection and control systems with explosion-proof requirements, and has super flexibility and high temperature resistance.

3、 Usage characteristics:

Rated voltage Uo/U: 300/500V

Maximum working temperature: generally not exceeding 70 ℃

The maximum temperature of the model with 105 after it does not exceed 105 ℃

Minimum ambient temperature: -40 ℃ for fixed installation, -15 ℃ for non fixed installation

Minimum bending radius: unarmored cables should not be less than 6 times the outer diameter of the cable

Armored cables should not be less than 12 times the outer diameter of the cable

4、 Main technical indicators:

Technical indicators of the project unit

Pe insulated PVC insulated

Working capacitance (core core) (1kHz) ≤ pF/M 90 180

Unbalanced capacitance (1kHz) ≤ pF/M 1/

Distributed inductance ≤ μ H/m 0.6 0.6

Inductance to resistance ratio ≤ 0.5mm2 μ H/Ω 20 20

0.75mm2

1.0mm2 25 25

1.5mm2 35 35

Resistance to external magnetic field interference (400A/m) ≤ mV 5 5

Anti static induction (20kV) ≤ mV 80 80

Anti RF interference (120dB) dB 60 60

Insulation resistance (20) ℃ M Ω. km 5000 25

Test voltage V/1min 1000 1000 1000

Flame retardancy meets the requirements of GB12666-90 and meets the requirements of GB12666-90