Non-hazardous Area – IEC 60079
What is IEC 60079 IEC 60079 is a series of international standards addressing the equipment and systems intended for use in explosive atmospheres. These standards is published by the International …
What is the difference between a metalclad switchgear from metal-enclosed switchgear?
I. Introduction Metalclad switchgear and metal-enclosed switchgear are terms used to describe types of switchgear constructions, primarily in the realm of medium voltage (MV) systems. While they are often used …
IEC 60865 Short-circuit currents – Calculation of effects
What is IEC 60865? IEC 60865 pertains to standards set by the International Electrotechnical Commission (IEC) that address the effects of short-circuit currents in three-phase a.c. systems. The purpose of …
Arc-flash – hazards, mitigations and standards
What is Arc-Flash? Arc-Flash is a type of electrical explosion that occurs when an electrical current leaves its intended path and travels through the air from one conductor to another …
IEC Standard Voltages
In North America and in the Philippines, the standard system voltages are specified in ANSI C84.1. For Europe and the rest of the world, the standard system voltages are specified …
Comparison of NEMA 250 Enclosures and IEC 60529 Degrees of Protection (IP Code)
This document “A Brief Comparison of NEMA 250—Enclosures for Electrical Equipment (1000 Volts Maximum) and IEC 60529—Degrees of Protection Provided by Enclosures (IP Code) is a NEMA Standards Publication. In …