Introduction The demand for power is steadily increasing every year, leading to a growing gap between power supply and demand. This gap can be addressed by either adding new generation …
High Voltage Circuit Breaker Interrupting Rating The interrupting ratings of a high-voltage circuit breaker are primarily defined by two parameters: the rated short-circuit current, I, and the rated maximum voltage, …
Temperature in the Philippines According to PAGASA data, the average mean annual temperature across all weather stations in the Philippines, excluding Baguio, is 26.6°C. The coolest month is January, with …
What is Objectionable Current? The term “objectionable current” in the context of the Philippine Electrical Code (PEC) refers to the presence of current flow on grounding conductors or grounding paths …
Performance-based requirements establish overall objectives without prescribing specific methods to achieve them. The opening paragraph of Section 2.50.1.4 explains that the performance objectives outlined in 2.50.1.4(A) for grounded systems and …
The PEC has defined a Separately Derived System as an electrical source, other than a service, having no direct connection(s) to circuit conductors of any other electrical source other than …