Photovoltaic (PV) cable, also known as solar cable, is a specialized electrical cable designed for use in photovoltaic power systems—most commonly in solar panel installations.

Weather resistance: It withstands prolonged exposure to sunlight, rain, snow, ozone, and extreme temperatures, making it suitable for outdoor installation.

UV resistance: The outer sheath is formulated to resist ultraviolet degradation, which is critical since solar cables are often laid on rooftops or in open fields.

Temperature range: Typically rated for −40 °C to +90 °C or even +120 °C for short periods, allowing reliable operation in harsh environments.

Voltage rating: Common ratings are 600 V, 1000 V, and 1500 V DC, matching the output of modern solar strings.

Durability:Resistant to abrasion, moisture, chemicals, and mechanical stress.

Double insulation: Usually consists of a tinned copper conductor, an inner insulation layer, and an outer sheath, often cross-linked (XLPE) for added thermal and chemical stability.Common standards: EN 50618, IEC 62930, UL 4703, and TÜV 2 PfG 1169.Typical applications: Connecting solar panels to each other, to combiner boxes, to charge controllers, and to inverters in residential, commercial, and utility-scale PV systems.Why it matters: Ordinary electrical cables degrade quickly under UV and weather exposure, leading to insulation failure, short circuits, and fire hazards. PV cable is specifically engineered to ensure safety, efficiency, and a long service life (often 25 years or more) in solar installations.