Complex MVA Method Short Circuit Calculation
I. Introduction This post will present the methodology of MVA Method in performing short circuit calculation. The result will be compared to the Impedance Method of Short-Circuit Calculation and the …
Per-Unit Method Short Circuit Calculation
I. Introduction In a previous post, the Impedance Method of Short-Circuit Calculation has been presented. To provide a comparative analysis on the accuracy of each calculation, the example provided in …
Short-Circuit Calculations Is Required by Philippine Electrical Code 2017
Several sections of the Philippine Electrical Code relate to proper overcurrent protection. Safe and reliable application of overcurrent protective devices based on these sections mandate that a short circuit study …
Protection Against Electric Shock
Electric Shock Electric shock is defined as a dangerous physiological effect resulting from the passage of electric current through a human body or livestock. A useful reference document is British …
Arc-Fault Circuit Interrupter – NEC 2017 Provision Missing in PEC 2017
Introduction The PEC 2017 is a localized version of the NEC 2017. However, not all provisions in the NEC 2017 has been included in the PEC 2017. One provision, Section …
Branch Circuit Maximum Loads according to Philippine Electrical Code 2017 Edition
The Philippine Electrical Code has specific provisions on the total load of a branch circuit that is required to be complied in any electrical installation. Section 2.20.2.9 is specific on …