PUE (Russia) vs NEC (US): 230/400 V vs 120/240 V, Schuko vs NEMA sockets, 30 mA RCD vs 4–6 mA GFCI, AWG vs mm² — key differences in tables.
| Parameter | Side 1 | Side 2 |
|---|---|---|
| Напряжение | 230/400 В, 50 Гц | 120/240 В, 60 Гц |
| Розетки | Тип C / F (Schuko) | NEMA 5-15R и др. |
| Сечения проводов | мм² (1,5; 2,5; 4…) | AWG (14, 12, 10…) |
| УЗО | 30 мА на группу в щите | GFCI 4–6 мА, часто в розетке + AFCI |
| Заземление | TN-C-S; ≤ 4 Ом (1.7.51) | TN-C-S; электроды 2,44 м (250.52) |
| Ванная комната | УЗО 10 мА (7.1.81) | GFCI (210.8), бритвенные розетки |
| Мин. сечение | 1,5 мм² медь | 14 AWG ≈ 2,08 мм² |
| Проверки | При приёмке (гл. 1.8) | Инспекция при монтаже; периодичность — местно |
Two independent traditions: Russian PUE (via the USSR) and US NEC (NFPA). Key differences: voltage and socket design, plus protection philosophy.
Russia: 230/400 V, 50 Hz, Schuko (type F). US: 120/240 V, 60 Hz, NEMA 5-15R; 240 V between hot legs for heavy appliances.
PUE: 30 mA RCD per circuit in the panel (7.1.79), 10 mA in bathrooms. NEC: GFCI at 4–6 mA, often in the receptacle (210.8); plus AFCI arc protection (210.12).
Russia: 1.5/2.5/4/6 mm². US: 14/12/10 AWG (2.08/3.31/5.26 mm²). Same pairing logic: 2.5 mm² ≈ 12 AWG ≈ 16–20 A.
Both TN-C-S. Russia: resistance ≤ 4 Ω (1.7.51). US: mandatory electrodes (2.44 m rod, 250.52) without a fixed ohm value.
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