IEEE 3003.1-2019 pdf free download – Recommended Practice for System Grounding of Industrial and Commercial Power Systems.
The standards listed in (louse 2 are cotnidered minimum requiremenis for the protection of lift and property and should be carefully reviewed during the course of system design. The recorrunended practices in this document are intended to stqslement. and not negate. auy of the requirements in the NEC. FEC. or any other location-specific regulatory codes.
The recommended practices in this document are intended to provide explanations of how electrical syatents operate A better understanding ot’ the electrical principles will assist the engineer in implementing the reconsmetsdatiotis in a manner that best prosides for the needsofa speei& design funclioti.
1.3 Covered—system grounding
System grounding is the intentioisal connection to ground of a phase or neutral conductor for the purpose of:
at (oiitmlltng the sollage with respect to earth. or ground. within predictable limits, and
hi Providing for a how of current that will allow detection of an unwanted connection between system conductors and ground. Such detection may then initiate operation of automatic deuces to rensorwe the soiree ofvoltage from these conductors.
The control of voltage to ground limits the voltage stress oat the insulation of conductors so that insulation pertbrtnance can more readily be predicted, The control of voltage also allows reduction of shock hazard to pcnsotss who might come in contact with ii ‘we conductors.
1.4 Not covered—equipment grounding and bonding
The Icons grounded and bonded are defined in the CEC, IEC, NESC. and NEC “Bonding” ts the electrical interconnecting of non-current carrying conductive parts designed to achieve a low impedance conductive path This definition is self-explanatory and implies that the conductive path should be adequately sized, wind connections properly installed, in order In maintain a patti with impedance as low as possible ‘The term botiding obviously is not exclusive to grounded systems. “Grounded’ nseaas connected to. or in contact with, the earth, or connected to seine extended conductive body that serves in place of the earth, whether the connection is intentional or accidental. The earth or the other conductive body is known as the “ground” in North Ansetica and areas of the wotid that use the CEC or NEC, and “earth” in the areas of the world thai use the FEC %Vhen usedasa verb, “grotuidin( is the act nfestahltshsng the atlirensentioned connection to ground or rIse conductive body. When used as an adjective, grounding describes the conductor or metal part that is used to make the connection to pound
Equipment grounding and handing is covered in IEEE Std 3003.2Tu. IEEE Rccsstntnended Practice for Equipment Grounding and Bonding in Industrial and Commercial Power Systems.
2. Normative references
The following referenced documents are indispensabLe for the wwplication of this document I i.e., they must he understood wand used, so each referenced document is cited in test and its relationship to thLs docunsent is explained). For dated retimnices. only the edition cited applies. For undated references, the latest edition of the rekrenccd document including any amendments or corrigenda) applies
IEC 60364-I, Electrical Installations of Buildings.
IEEE Std C3’7. 101 rsa IEEE Guide for Generator Ground Protection,
IEEE Std 36PM. IEEE Recommended Practice (or l)etemiinrng the Electric Power Station Ground Potential Rise and Induced Voltage from a Pow ci Fault.IEEE 3003.1 pdf download.