Operating And Environmental Standards For Different Cables

A wire consists of one or several soft conductors covered with a light and soft sheath; a cable consists of one or several insulated conductors covered with a tough outer layer made of metal or rubber.

Cables and wires are generally composed of three components: core wire, insulating sheath and protective sheath.

The characteristics of commonly used cables are as follows:

CEF - ethylene propylene rubber insulated neoprene sheath, marine flame retardant power cable.

CVV - PVC insulated, PVC sheathed marine flame retardant power cable.

The wires often use BV, BX, RV, RVV series wires, among which:

BV——Copper core PVC insulated wire, the long-term allowable temperature is 65℃, the temperature is -15℃, the working voltage is AC 500V, DC 1000V.

BX——Copper core rubber insulated wire, the use temperature is 65 ℃, and it is applied indoors.

RV - PVC insulated single-core flexible wire, operating temperature 65℃, operating temperature -15℃, working voltage AC 250V, DC 500V, used for internal wiring of instruments and equipment.

RVV——Copper core PVC insulated and sheathed flexible wire, allowing long-term working temperature of 105℃, working voltage of AC 500V, DC 1000V, used in humid, high mechanical protection