Kev tswj cov kab hluav taws xob yog PVC-insulated thiab PVC-sheathed cables tsim los siv rau hauv kev lag luam thiab kev lag luam mining, nrog rau hauv lub zog thiab kev thauj mus los. Lawv yog npaj rau kev tswj thiab kev tiv thaiv circuits nrog AC rated voltage txog li 450/750V.
Cov yam ntxwv ua haujlwm
1. DC Resistance (ntawm 20 degree): Tsawg dua lossis sib npaug ntawm 148 Ω / km rau 0.4mm tooj liab hlau; Tsawg dua lossis sib npaug li 95 Ω / km rau 0.5mm tooj liab hlau.
2. Dielectric zog: Tsis muaj kev tawg tom qab 1 feeb ntawm 1kV ntawm cov conductors, lossis ntawm 3kV ntawm cov neeg xyuas pib thiab cov ntaub thaiv npog.
3. Insulation Resistance: With each core wire measured against the other grounded cores, the insulation resistance is >10,000 MΩ·km for control cables and >3,000 MΩ·km rau HYAT cables.
4. Kev khiav hauj lwm Capacitance: Tus nqi nruab nrab ntawm 52 ± 2 nF / km.
5. Far-End Crosstalk Attenuation (Protection): The average power value for specified combinations at 150 kHz is >69 dB/km.
