The common types include SJT, SVT, Seow, SJ, sjow, sjow, sjow, so and sow.

The extension line is generally made of flame-proof and heat-resistant materials, and the operating temperature range is? 20 ° C (? 4 ° f) to 90 ° C (194 ° f).

Power cable

Power cable is used to transmit and distribute high-power electric energy in power system. Such as the common low-voltage cable with the additional operating voltage lower than 1000V, the medium voltage cable with the additional operating voltage between 3.6/6 and 26 / 35kV, and the high-voltage cable with the additional operating voltage higher than 110kV. Bare wires are often used in overhead transmission lines to save the cost of insulating materials, such as stranded wires (ACSR, alsr, ACSR, alxs), flexible wiring, profiles and profiles.

Terminal block

The power strip is an extension tool of the power socket, which can make a single socket supply power to multiple appliances. The wiring board can deal with the problem that the single socket only supplies one electrical appliance, and also can deal with the problem that the electric appliance cannot be connected due to too far distance. However, attention should be paid to the current and power in order to avoid the dangerous occurrence caused by current overload. The terminal block usually has a circuit breaker to stop problems caused by overload or short circuit.