Cable diameter

It’s mainly instrument cables. From the ZR-KVVP22 series.

This post was last edited by budaoweng123 on 2015-8-11 at 15:18. If it is intrinsically safe and explosion-proof, intrinsically safe cables must be used. If it is flameproof or of another explosion-proof type, whether that model is explosion-proof has nothing to do with the cross-sectional area of your cable

This depends on the cable manufacturer you choose, as the diameter of the cables varies from one manufacturer to another. . It is recommended that once you have chosen a manufacturer, ask them to provide you with the outer diameter dimensions of the cables of the corresponding models.

I wonder what the distance is from the location where the poster is to the control room? If the distance is 450 meters or less: (Attention is needed if this distance is exceeded.) It is recommended that the cable used by the owner be as follows: for signals such as 4–20mA and DI, use a cable with a cross-sectional area of 1.5 mm2 and shielding; for RTD and TC signals, also use a cable with a cross-sectional area of 1.5 mm2 and shielding; for DO signals (leading to solenoid valves), use a cable with a cross-sectional area of 2.5 mm2 and shielding; for 220VAC applications, use a cable with a cross-sectional area of at least 2.5 mm2, with the exact specification determined based on the power requirement. Cables are not originally divided into intrinsically safe cables and flameproof cables; rather, there are only cables for signal transmission in this application and flameproof cables for signal transmission. The so-called intrinsically safe cables are all fabrications; they are nothing but misinformation passed from one person to another. Theoretically, for intrinsically safe cables, attention must indeed be paid to the distributed inductance and capacitance of the cables, as these values cannot be too high; otherwise, the excessive energy stored in the cables would prevent them from forming an intrinsically safe circuit. But under normal circumstances, the cables produced by reputable cable manufacturers are of good quality, so they can be used with confidence. Refer to SH/T3019-2003 \"Code for Design of Instrumentation and Pipeline Systems in Petrochemical Industries\"