Posts Tagged ‘iec standard’

Types of Earthing (as per IEC Standards)

May 31st, 2013 | 11 Comments | Posted in iec standard
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Introduction

In the preceding article we studied the basics of Earthing and also the basic most Earthing type where the neutral is grounded at source and optionally grounding is done even at customer side.

Besides this, International Standard – IEC 60364 formally defines different types of Earthing arrangements. Let us examine them here in detail.

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Earthing system design

January 22nd, 2010 | 47 Comments | Posted in iec standard
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Electrical protection and lightning protection

I have a query on earthing system design. One designer has submitted me an earthing plan which interconnects the earth electrodes meant for equipment earthing and those for lightning protection purposes. By combining the earth electrodes he achieves overall earth resistance below one ohm required by IS 3043 (Indian standard).  But my question is whether this is an acceptable practice followed by industry or the earth electrodes of the two systems (protective earthing and lightning protection) can not be combined this way?
Would appreciate feedback. thanks in advance. 
D. Sunil 

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