cablelead

Cable lead is a length of electrical cable that provides a conductive connection between a power source and an electrical device, or between components within a system. It is commonly referred to as a power cord, mains lead, or cord set. A cord set typically combines conductors, insulation, and a protective outer sheath with at least one connector at each end, such as a plug for the wall outlet and a receptacle or appliance coupler.

Construction and conductors: Most cable leads use copper conductors with insulated cores, enclosed by a flexible jacket (PVC, rubber, or other polymers). They are usually two-core or three-core, and vary in conductor cross-section and insulation to suit voltage and current ratings. Some leads include shielding or extra insulation for noise reduction or durability. Ratings are specified for voltage (for example 125 or 250 V domestically, higher for industrial use) and current, and the outer sheath may be temperature-rated.

Connectors and standards: In many regions, appliance leads use standardized connectors defined by IEC 60320 (for example C13/C14, C5/C6) and corresponding plugs. In North America, NEMA-type plugs are common. Safety-certified leads carry marks from UL, CE, or equivalent bodies. Damaged leads should be replaced to reduce shock and fire risk.

Usage and safety: Cable leads are used to power consumer electronics, computers, and laboratory equipment, or to extend access to power via extension cords. Users should avoid daisy-chaining and ensure compatible voltage and current ratings, proper grounding, and periodic inspection.