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 …
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 …
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 …
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 …
Deciding on what protective devices need to be used in an application is a difficult task unless you are doing electrical protection as your profession. An appendix of this standard …
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 …