yes you can, and they are not considered current carrying conductors either, so you don't even have to worry about derating. Do the cables have to have the same voltage ratings? no, as long as they have the same insulation type. The power demanded in electricity systems also determines the cable cross-section and properties as well as the current to be transferred. In case of high power use, to meet the demand of currentAnd in order for the current to be carried at the demanded high powers to be met, the method of parallel. It doesn't sound like you're in the US, but here in US, this is acceptable provided all of the insulation is rated for the highest voltage in the tray. If you have a 480V circuit in the tray, all cables must be insulated for at least 480V regardless of the actual voltage of the circuit. The straight line distance between the strong current and the weak. Strong current cables carry high voltage and high current of 220V and above, and are responsible for driving power equipment such as lighting and air conditioning; while weak current cables transmit voice, data and control signals below 36V, building information channels for smart homes and. In industrial settings, electrical and instrumentation (E&I) cable trays or bridge racks play a critical role in organizing and supporting power, control, and signal cables across facilities. An effective layout ensures safety, minimizes interference, reduces maintenance time, and keeps the overall. For direct buried laying, it is necessary to consider whether the cable is susceptible to damage caused by external impact. If there is no big impact, it is possible to lay it directly.
