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There are two methods for indicating protection relay functions in common use. One is given in ANSI Standard C37-2, and uses a numbering system for various functions. The functions are supplemented by letters where amplification of the function is required. The other is given in IEC 60617, and uses graphical symbols. To assist the Protection Engineer in converting from one system to the other, a select list of ANSI device numbers and their IEC equivalents is given in Figure A2.1.

ANSI/IEC Relay Symbols

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Book with graphical explanations of short circuit and its calculations (purpose, standards, types, calculations…)

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IECPrincipi IEC standarda IEC 60364 i 60479-1 predstavljaju osnove na kome počiva većina električnih standarda u svetu. Dole su prikazani oni najvažniji. Više o ostalim standardima – klikni ovde.
IEC 60364-1 Electrical installations of buildings – Fundamental principles
IEC 60364-4-41 Electrical installations of buildings – Protection for safety – Protection against electric shock
IEC 60364-4-42 Electrical installations of buildings – Protection for safety – Protection against thermal effects
IEC 60364-4-43 Electrical installations of buildings – Protection for safety – Protection against overcurrent
IEC 60364-4-44 Electrical installations of buildings – Protection for safety – Protection against electromagnetic and voltage disrurbance
IEC 60364-5-51 Electrical installations of buildings – Selection and erection of electrical equipment – Common rules
IEC 60364-5-52 Electrical installations of buildings – Selection and erection of electrical equipment – Wiring systems
IEC 60364-5-53 Electrical installations of buildings – Selection and erection of electrical equipment – Isolation, switching and control
IEC 60364-5-54 Electrical installations of buildings – Selection and erection of electrical equipment – Earthing arrangements
IEC 60364-5-55 Electrical installations of buildings – Selection and erection of electrical equipment – Other equipments
IEC 60364-6-61 Electrical installations of buildings – Verification and testing – Initial verification
IEC 60364-7-701 Electrical installations of buildings – Requirements for special installations or locations – Locations containing a bath tub or shower basin
IEC 60364-7-702 Electrical installations of buildings – Requirements for special installations or locations – Swimming pools and other basins
IEC 60364-7-703 Electrical installations of buildings – Requirements for special installations or locations – Locations containing sauna heaters
IEC 60364-7-704 Electrical installations of buildings – Requirements for special installations or locations – Construction and demolition site installations
IEC 60364-7-705 Electrical installations of buildings – Requirements for special installations or locations – Electrical installations of agricultural and horticultural
premises
IEC 60364-7-706 Electrical installations of buildings – Requirements for special installations or locations – Restrictive conducting locations
IEC 60364-7-707 Electrical installations of buildings – Requirements for special installations or locations – Earthing requirements for the installation of data
processing equipment
IEC 60364-7-708 Electrical installations of buildings – Requirements for special installations or locations – Electrical installations in caravan parks and caravans
IEC 60364-7-709 Electrical installations of buildings – Requirements for special installations or locations – Marinas and pleasure craft
IEC 60364-7-710 Electrical installations of buildings – Requirements for special installations or locations – Medical locations
IEC 60364-7-711 Electrical installations of buildings – Requirements for special installations or locations – Exhibitions, shows and stands
IEC 60364-7-712 Electrical installations of buildings – Requirements for special installations or locations – Solar photovoltaic (PV) power supply systems
IEC 60364-7-713 Electrical installations of buildings – Requirements for special installations or locations – Furniture
IEC 60364-7-714 Electrical installations of buildings – Requirements for special installations or locations – External lighting installations
IEC 60364-7-715 Electrical installations of buildings – Requirements for special installations or locations – Extra-low-voltage lighting installations
IEC 60364-7-717 Electrical installations of buildings – Requirements for special installations or locations – Mobile or transportable units
IEC 60364-7-740 Electrical installations of buildings – Requirements for special installations or locations – Temporary electrical installations for structures,
amusement devices and booths at fairgrounds, amusement parks and circuses
IEC 60427 High-voltage alternating current circuit-breakers
IEC 60439-1 Low-voltage switchgear and controlgear assemblies – Type-tested and partially type-tested assemblies
IEC 60439-2 Low-voltage switchgear and controlgear assemblies – Particular requirements for busbar trunking systems (busways)
IEC 60439-3 Low-voltage switchgear and controlgear assemblies – Particular requirements for low-voltage switchgear and controlgear assemblies intended to
be installed in places where unskilled persons have access for their use – Distribution boards
IEC 60439-4 Low-voltage switchgear and controlgear assemblies – Particular requirements for assemblies for construction sites (ACS)
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