Difference between wire and cable and classification of household wires?

I. Difference between wire and cable and classification of household wires?1. Cable: an insulated wire consists of one or more insulated conductors placed in a sealed sheath. It can add a protective covering to transmit. Distribute electrical energy or transmit electrical signals. The main difference between it and ordinary wires is that cables are large in size and complex in structure. The cable consists of four main parts: the conductor core. Insulation. Sealed jacket and protective cover. According to its use, can be divided into power cables, communication cables and control cables. 2. wire wire consists of one or several soft wires, wrapped in a lightweight and soft jacket, used to carry the current conductive metal wire. There are various forms such as solid. Twisted or foil braided. According to the insulation conditions, it can be divided into bare and insulated wires.3. Classification of Household Wires. (1). Hard wire is professionally called BV wire, mainly used for power supply, lighting, sockets, air conditioning, applicable to AC voltage 450/750V and below, power devices, daily appliances, meters, telecommunication equipment cables and wires. Hardwire has a certain degree of hardness, and it will be easier to fold the corners and straighten them. (2). Soft wire is specialized as BVR wire, which is suitable for power devices with AC voltage 450/750V and below. Daily appliances. Cables and wires for instrumentation and telecommunication equipment such as distribution boxes. Soft wires are more complex than hard wires, and soft wires for high-frequency circuits have a higher current-carrying capacity than hard wires. (3). Hard. Soft wire (weak wire) consists of a single and several copper core wires, respectively. generally refers to network cables. lower voltage wires and cables.

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