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 …
IEC 60038 – Voltage Standardization
IEC 60038-1983, amended in 1994 and 1997 (current revision IEC 60038:2009/AMD1:2021) is a directive to standardize voltages of a.c. transmission, distribution, and utilization systems and equipment for use in such …
IEC 61439-1 Minimum Size for PE, PEN Conductors
Background In 2010, the new standard IEC 61439 series was published to replace the IEC 60439 series. The purpose of the IEC 61439 series of standards is to harmonize as …
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 …
Low Voltage Fuses Applications
Despite the advancement of re-settable circuit protection devices, fuses are here to stay. In some applications, fuses are irreplaceable particularly in high current limiting or fast fault-current interruption applications. Fuses …