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 …
Article 2.10.1.5 (B) – Multipole Common Trip Circuit Breaker Required Philippine Electrical Code 2009 Article 2.10.1.5 Identification for Branch Circuits Section (B) Disconnecting Means states that: Each multiwire branch circuit …
What is the Philippine Electrical Code? The Philippine Electrical Code (PEC) is a set of standards and regulations that govern the safe and proper installation, operation, and maintenance of electrical …
This IEEE Guide for Surge Protection of Equipment Connected to AC Power and Communication Circuits. Authors: Richard L. Cohen Doug Dorr James Funke Chuck Jensen S. Frank Waterer Surge protection …
Almost always, stationary battery rooms ventilation is an argument among engineers. However, seldom do their reasoning are based on scientific evidence to prove their position. IEC std 62485 provides a …
The rated kVA of a transformer shall be the output that can be delivered for the time specified at rated secondary voltage and rated frequency without exceeding the specified temperature-rise …