Cables and wires are the main electrical material without which electricity is unthinkable. They are used in a variety of applications including power transmission, communication systems, electronics, and more. The electrical properties of the materials used in cables are essential to the proper functioning of electrical systems. Cables often contain conductors of materials such as copper or aluminum, which are good conductors of electrical charge. Installation cables multi-core and single-core cables used to build electrical installations or electrical appliances and machines.
Another popular type of installation cables are SVT - power cables for voltage up to 1000V with a frequency of 50Hz, highly resistant to atmospheric influences and solar radiation. SVT cables can withstand a maximum temperature of 70°C during continuous operation, and up to 160°C during a short circuit within about 5 seconds. The sheath of the core and the general insulation are made of PVC plastic. In installation, this cable can be placed in a corrugated pipe or directly in the ground.
PVV-MB1 cables are the most used cables for building electrical installations and are a flat cable with one, two, three or four copper cores with colored insulation for each. The general insulation of the cable is usually white in color. PVV-MB1 cables are better known among users as bridge cables.
This type of cable is flat, which helps to make it easier to lay when directly embedded in a wall. This is done in order to slow down the aging process of the PVC insulation of the cable. Another popular way of laying bridge cables is on wooden surfaces such as gazebos, sheds and cabins. Using nails, the cable is fixed directly on the wooden surface.
Power cables are used to power household and industrial electrical appliances, machines, as well as movable electrical equipment. What is specific about them is that they are flexible and multi-wired, with each wire having colored PVC insulation. The power cords are: