In the electrical design engineering, conductor is one of the most important things to be considered. It can be in the form as wires or cables, and sometimes optical fiber for small-power low-voltage requirement. Simply says, cable is a wire veiled with the insulators, which can be polyethylene or PVC, etc. There are two major... Continue Reading →

As per IEC 62271-100,The rated characteristics of the circuit-breaker are referred to the rated operating sequence. There are two alternative rated operating sequences as follows:a. O – t – CO – t’ – COUnless otherwise specified:t  = 3 min for circuit-breakers not intended for rapid auto-reclosing;t  = 0,3 s for circuit-breakers intended for rapid auto-reclosing... Continue Reading →

IEC 60079-      ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERESPart 0     Ed. 6.0/2011      General requirementsPart 1     Ed. 6.0/2007      Equipment protection by flameproof enclosures "d"Part 2     Ed. 5.0/2007      Equipment protection by pressurized enclosures "p"Part 3     Ed. 1.0/1963      Spark test apparatus for intrinsically safe circuits (Withdrawn)Part 4     Ed. 1.0/1966      Method of test for ignition temperature (Withdrawn)Part 5     Ed. 3.0/2007     ... Continue Reading →