Electric cables

Electrical cables can be divided into various groups based on several criteria: 

• Number of conductors. Typically, electrical cables with 1 to 6 conductors are used. 
• Type of conductor - solid (solid) or stranded (stranded). Mainly, electrical cables with solid conductors are used, as they are cheaper. In places where a flexible electrical cable is needed, such as extension cords or in areas with vibration (e.g., transportation), electrical cable with stranded conductors are used. In colloquial language, electrical cables or electrical wires are sometimes referred to as "hard" or "soft";-) . 
• Based on the planned installation location, electrical cables are divided into indoor (interior) cables or outdoor (exterior) electrical cables. Outdoor electrical cables are also sometimes referred to as buried (underground) or outdoor electric cable. 
• An important parameter is the electrical cable's conductor diameter, which is specified in square millimeters (mm²). The necessary diameter of the electrical conductor is calculated depending on the power of the intended device. 
• Regarding the conductor material of electrical cables, copper (Cu) or copper wire is commonly used in household applications, and cables for higher powers may have aluminum conductors. Aluminum electrical cables have a much larger outer diameter compared to copper wire cables - intended for the same power consumption.

The most popular cable brands are  NYM  (solid indoor cables),    OMY  (stranded indoor cables)  and  CYKY