GIES OS
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Indexed GIES field reference for article lookup, bookmarks, and local notes. Full NEC text is not bundled.
This section is an index and note layer only. Use your licensed 2020 NFPA 70 / NEC book, NFPA LiNK access, or AHJ-published adopted code source for exact enforceable text. Do not treat this page as the full code.
81 indexed itemsLocal notes enabledFull text not stored
Short GIES field cards are grouped directly in the code tab below. Use the full cards when you need the detailed bullet list, exceptions, and gotchas.
Open Full Quick Card LibraryLegacy Common CardsFeeder sizing, ratings, voltage drop informational notes, and feeder identification in service/subpanel work.
Keywords: feeder, subpanel, ampacity, voltage drop, neutral
Related: 220, 225, 230, 250
Load calculations for dwellings, commercial spaces, feeders, and services.
Keywords: load calculation, service calculation, dwelling, demand factor, commercial load
Related: 210, 215, 230
Outside feeders/branch circuits, building disconnect rules, and detached structure feeds.
Keywords: detached garage, outside feeder, building disconnect, overhead, underground
Related: 215, 230, 250
Service conductors, service disconnecting means, service equipment, service entrance rules, and common utility/service work references.
Keywords: service, service disconnect, service equipment, meter, service entrance, 230.71
Related: 225, 250, 408
Surge protective devices and overvoltage protection requirements.
Keywords: surge, SPD, overvoltage
Related: 230, 250, 285
Grounding electrode systems, bonding, equipment grounding conductors, grounded conductors, and service/subpanel grounding logic.
Keywords: grounding, bonding, GEC, EGC, ground rod, water pipe, gas bonding, subpanel, 250.66, 250.122
Related: 100, 110, 200, 230, 680
SPD installation, connection, and application references.
Keywords: surge protective device, SPD, transient voltage
Related: 242, 230, 250
SE/USE cable applications for service and feeder work.
Keywords: SE cable, USE cable, service entrance
Related: 230, 310, 334
Panelboards, switchboards, switchgear, circuit directories, unused openings, and panel equipment rules.
Keywords: panelboard, switchgear, switchboard, directory, breaker, unused opening
Related: 110, 230, 240