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Latin America: electrical installation rules (NOM, NBR 5410, RETIE, CNE)

Latin American electrical codes: Mexico (NOM-001-SEDE), Brazil (NBR 5410), Argentina (AEA 90364), Colombia (RETIE), Chile (NCh 4), Peru (CNE). Voltages, sockets, differences from NEC and IEC.

🇷🇺 PUE — Rules for Electrical Installations (7th ed.)🕰️ PUE-6 — Rules for Electrical Installations (6th ed., 1985)🇺🇸 NEC — National Electrical Code (NFPA 70)🇪🇺 IEC 60364 / HD 60364 (EU national codes)🌎 NOM-001-SEDE, NBR 5410, AEA 90364, RETIE, NCh 4, CNE🇨🇳 GB 50054, GB 50303, JGJ 16, GB/T 16895 (IEC 60364)🇮🇳 IS 732

Key facts

DocumentNOM-001-SEDE, NBR 5410, AEA 90364, RETIE, NCh 4, CNE
Voltage110–127 V and 220 V (by country)
Frequency60 Hz (most), 50 Hz (Argentina etc.)
SocketsNEMA (MX, CO), NBR 14136 (BR), Type I (AR)
EarthingTN-C-S, TT (Brazil — TT/TN-S)

Terminology in the native language

Native termTransliterationEnglish translation
puesta a tierra (ES)puesta a tierraearthing (Sp.)
aterramento (PT)aterramentoearthing (Port.)
interruptor diferencial (ES)interruptor diferencialRCD (Sp.)
disjuntor (PT)disjuntorcircuit breaker (Port.)
tablero general (ES)tablero generalmain distribution board (Sp.)
medidor (ES)medidorenergy meter (Sp.)
tubería conduit (ES)tubería conduitconduit (Sp.)
cableado (ES)cableadowiring (Sp.)
polo a tierra (ES)polo a tierraearthing pole (Sp.)

Region overview

Latin America has no single code: each country has its own rules, but most are based on the US NEC (Mexico, Colombia, Peru, Central America) or on IEC 60364 (Brazil, Argentina, Chile). Voltages vary: 60 Hz in most countries, 50 Hz in Argentina, Paraguay and part of Brazil.

Countries and documents

CountryCodeVoltageFrequency
MexicoNOM-001-SEDE (NEC-based)127/220 V60 Hz
BrazilNBR 5410:2004 (IEC-based)127/220 V60 Hz
ArgentinaAEA 90364 (IEC-based)220/380 V50 Hz
ColombiaRETIE + NTC 2050 (NEC-based)120/208/240 V60 Hz
ChileNCh 4/2003 (SEC)220/380 V50 Hz
PeruCNE Utilización (NEC-based)220 V60 Hz
VenezuelaCOVENIN 200120/240 V60 Hz

Brazil specifics (NBR 5410)

Brazil has the most detailed system in the region: mandatory minimum numbers of sockets per room, bathroom zones, IDR 30 mA (RCD equivalent) for bathrooms, outdoor and wet-area sockets, standard sockets NBR 14136 (type N) — 10 A and 20 A. Conductor sizes per IEC: 1.5 / 2.5 / 4 / 6 mm².

NEC-based codes

Mexico (NOM-001-SEDE), Colombia (RETIE/NTC 2050) and Peru (CNE) structurally follow NEC: same ampacity, earthing and bonding sections, GFCI-style socket protection. Differences: local lightning requirements, tropical corrosion protection and high-altitude regions.

Sockets and plugs

NEMA 1-15/5-15 — Mexico, Colombia, Peru, Venezuela, Central America; type I — Argentina, Uruguay, Paraguay; type N (NBR 14136) — Brazil. Earthing contact is mandatory on household sockets in all codes of the region.

Related references

Clause-by-clause review

Translation of key sections and clauses with numbers:

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Reference · World electrical installation rules