Can control cables be used as power cables for control cabinets?
Thread Content
This post was last edited by The project’s progress on 2023-10-14 at 22:29. As the title suggests, I would like to ask whether it’s okay to use control cables as power cables for control cabinets with a power rating of less than 200 watts What kind of cables are generally used for power cables in instrument control systems? Additional note: According to electrical engineering principles, cables should be selected based on voltage. Control cables with a voltage rating of 450V to 750V can be used. The current-carrying capacity of these cables isn’t specified in the manufacturer’s specifications; upon inquiry, the manufacturer suggested referring to the specifications for power cables, as the values are fairly similar. However, there are still differences in the current-carrying capacities of BV, VV, and YJV cables. I believe this is related to the thickness of the copper core, but I’m not sure what causes the differences in current-carrying capacity among these cables It can be used by applying it to cables with the minimum current-carrying capacity, but after consulting several colleagues in the design field, it is better and more conventional to use power cables for power supply purposes.
Control cables are typically used to transmit signals, rather than as power cables. For locally installed control cabinets with a power rating of 200 watts or less, it is generally recommended to use cables suitable for power transmission. Common options include power cords, wiring cables, or standard power cables; the specific choice depends on factors such as power current and distance. When selecting a cable, factors such as current load, cable length, environmental conditions, and safety standards need to be taken into account to ensure that the cable can transmit power safely and reliably. To ensure the correct selection and installation, it is recommended to consult a professional electrical engineer or an expert in the relevant field. .
We have been choosing them in this way until we realized this issue; we also examined the design of control instruments used by other companies, which also make use of control cables. After consulting electrical experts, we were told that such a choice is not standard
It depends on the usage environment; different production environments require different functions. Some cases call for ordinary wires, while others need flame-retardant cables or fire-resistant cables. It also depends on the standards followed by your company. Setting these aside and looking at it purely from an electrical perspective, as long as the 200W 220V power cable does not leak electricity, that’s sufficient!
It is the safest approach to select a model based on the on-site explosion protection requirements. Suitable for use in areas with low requirements; no problem as long as the power consumption is not high
For instrument power cables, YJV is commonly chosen
Inside the control cabinet, control cables are used in place of power cables, with the cable’s current-carrying capacity being the main consideration. If the cross-sectional area can provide sufficient current-carrying capacity, there is no problem.