Short-circuit calculation is one of the most important work to be undertaken in plant power distribution. A comprehensive, detailed and accurate short-circuit currents will be used in switchgear selection, protection settings and coordination. Traditional short-circuit…
Read More
There are provisions in the Philippine Electrical Code stating the maximum voltage drop for branch circuits and feeders. Philippine Electrical Code Part 1/Chapter 2. Wiring and Protection/Article 2.10 – Branch Circuits FPN No. 4: Conductors…
A copy of the 2009 edition of the Philippine Electrical Code (PEC) is always on top of my desk just in case I need it as a reference. When not using it, I am wondering…
Overload detection shall be provided for the neutral conductor in a multi-phase circuit Where the cross-sectional area of the neutral conductor is less than that of the line conductors. The overcurrent detection for the neutral…
IEEE 1584 Guide Equation for calculation of incident energy has a factor K2 for system grounding. It is zero for ungrounded and high or low resistance grounded systems and −0.113 for the solidly grounded (earthed)…
The 2015 edition of NFPA 70E has a simplified approach to provide minimum PPE for electrical workers within facilities with large and diverse electrical systems. The simplified clothing categogies listed in NFPA 70E 2015 Table…
