Cable A is designed for use in an atmosphere of I and II types of air with a content of no more than 150 milligrams per square meter per day of sulfur dioxide and in electrical networks for air purpose for transmission of electricity on land.
The wires of this type of cable are made from aluminum wires, as evidenced by the letter A in the cable marking. The wires are twisted in the correct twist, while the twists of the adjacent layers are directed in opposite directions. The twist on the outside has the right twist direction.
The service life of cable A is 45 years. The warranty period from the date of commissioning, established by the manufacturers, is four years. During operation, the cable can withstand temperatures up to 90 ° C.
The cable marking may contain numbers from 16 to 500, which indicates the cross-section of the conductor in square millimeters (A 16, 25, 35, 50, 70 and so on).
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