Insulation
Türkçe: Yalıtım
Material or construction that separates live conductors from each other and from earth and does not conduct current.
// EXPLANATION
Insulation resistance falls over time with moisture, heat and ageing. It is tracked with periodic insulation testing (megger); insulation breakdown is a leading cause of leakage current and fire.
// ALSO KNOWN AS
insulationinsulating
// RELATED TERMS
Residual-current deviceA safety device that watches the difference between line and neutral currents and opens the circuit within a fraction of a second when that difference exceeds a threshold.
IT systemA system whose source is isolated from earth (or earthed through a high impedance); the first earth fault does not cause an outage and insulation is monitored.
Cable cross-sectionThe area of a cable conductor in mm²; it determines current-carrying capacity, voltage drop and short-circuit withstand.
