In the XXI century, human activity is closely connected with electricity and technology that consumes it. PVS wire https://samtorg.com .ua /g3310947-provod-pvs will provide convenient connection of devices to the mains, while ensuring their normal operation and personal safety.
The popularity of PVA (wire, vinyl insulation, connecting) is supported by a number of positive factors:
- resistance to mechanical deformation (bending, stretching)
- fire safety (does not support combustion)
- high frost resistance -25 ° С and heat resistance + 70 ° С
The elasticity of the wire is achieved by using a thin copper wire braided into the main core and covered with insulation. This type of cable is produced with a different number of cores, which allows the independent connection of several devices simultaneously. Depending on the number of connections and the total load of the connected devices, in amperes (A), it is necessary to use a PVA with a certain section and number of cores.
You can make the calculation yourself by picking up an electrician's handbook and purchasing a wire at a “cheap” price on the market, as a rule, the so-called “truncated” (section is less than the stated one), which is definitely not recommended.
Contacting a company that is an official representative of manufacturers of electrical goods saves money, and in the future, nerves and even health. An experienced specialist will calculate (taking into account operating factors that are often not mentioned in reference books) the required conductor cross-section (0.75, 1.0, 1.5, 2.5, 4.0, 6.0mm), their number (2..5) and the length of each type of wire. The difference in the cost of different types of PVA is quite noticeable. The cable purchased from an authorized dealer has guaranteed quality and declared technical characteristics.
The service life of PVA wires is 6-10 years, so it is advisable to lay electrical wiring with the possibility of replacement.
