IEC 60909 recommends the calculation of maximum and minimum short circuit currents. The article expounds the discussion on the purpose for maximum and minimum short-circuit currents. Maximum short-circuit currents need …
Low Voltage is mentioned many times in the Philippine Electrical Code (PEC). However, the PEC failed to explicitly include Low Voltage in the definition of terms. The purpose of the …
Design engineers most of the time will refer to induction motor manufacturer’s data as an input to their design. This practice is totally acceptable. In the absence of a manufacturer’s …
Utilization category (for a switching device or a fuse) is defined in IEC 60947-1 as the combination of specified requirements related to the conditions in which the switching device or …
Short-circuit analysis is carried out in electrical power systems to ensure that the selected electrical equipment and the installation as a whole is safe for workers as well as the …
IEC 60529 – Degrees of protection provided by enclosures (IP Code) describes a system for classifying the degrees of protection provided by the enclosures of electrical equipment. The protection provided …