Compliance to Standards and Statutory Laws
What is a Statutory Law? What do NFPA 70, BS 7671 and AS/NZS 3000 have in common? The former is National Electrical Code (U.S.), the next is the wing regulation …
Philippine Electrical Code – Acceptable Practice
Electrical Engineers – Do you really care? Electrical installation of this kind is all over Metro Manila and probable in some other major cities in the Philippines. Are these building …
Spaces About Electrical Equipment – Working Spaces
Spaces About Electrical Equipment One of the most taken for granted provision of the Philippine Electrical Code is Section 1.10.2.1 Spaces About Electrical Equipment. It may have been that Electrical …
IEEE Transformers Categories
There are four (4) categories of transformers according to IEEE Std. C57.12.00 – IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers. Categories of Transformer Rating Category …
The Effect of Earthing Methods
Earthing the System Neutral Most earthed systems employ some method of earthing the system neutral at one or more points. Effectively Earthed System A system is effectively earthed when the …
Normative and Informative Annexes Compliance
The terms ‘normative’ and ‘informative’ are commonly used in IEC and other derivative standards to define applications of annexes. A normative annex is an integral part of a Standard which …