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This is an interpretation of ANSI C57.12.28-1999. Interpretations are issued to explain and clarify the intent of a standard and are not intended to constitute an alteration to the original standard or to supply consulting information. Permission is hereby granted to download and print one copy of this document. Individuals seeking permission to reproduce and/or distribute this document in its entirety or portions of this document must contact the IEEE Standard Department for the appropriate license. Use of the information contained in this document is at your own risk.
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As per this standard section 5.1.2, The enclosure shall be designed to shed water and minimize areas where corrosive elements can accumulate."
Does the flat top surface of any padmount encloser serve the purpose of this
standard requirement to minimise the corrosive
elements accumulation OR does it demands some special design, i.e., raise the
center part or cross-kinked top?
The scope of paragraph 5.1.2 is very clear. .."The enclosure shall be designed to shed water and minimize areas where corrosive elements can accumulate."
THIS INCLUDES THE TOP SURFACE OF BOTH THE TANK AND CABINET...It MUST also meet
the corrosion resistance painting requirements (paint tests). How you accomplish
this is reflective of YOUR TRANSFORMER DESIGN and is not dictated by STANDARDS.
You are free to use what ever method of construction and painting that you choose
in order to meet the requirements as set fourth in C57.12.28.
Copyright © 2005 IEEE. All rights reserved.