IEEE and IEC Interface
A project dealing only with either IEEE/ANSI/UL or IEC standards is not an issue. If there will be mixed standards within a single project, then compliance becomes an issue. In …
Conductor Stranding – IEEE vs IEC Standards
Important Notes: A conductor size expressed in mm² shall be IEC standard and sizes in AWG or kcmil shall be IEEE standard. PEC standard conductors are similar to IEEE standards …
International Standards as PEC Alternatives in Electrical Installation in the Philippines
Is it possible to use International Standards such as IEC 60364 and NFPA 70 for electrical installations in the Philippines? International Standards such as IEC 60364 and NFPA 70 are …
Why The PEC Needs to Adapt IEC
The first edition of the PEC published in 1962 by PAMEE was an adaptation of the NEC customized to suit the local Philippine environment. Several decades later and the PEC …
Resistance of a Single Earth Electrode
The resistance of a single earth can be calculated if the soil resistivity is known. An earth rod driven vertically, the electrode resistance can be calculated using the following formula. …
Arc Flash – Simplified Two-Category Clothing
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 …