Japanese installations: 100 V 50/60 Hz, type A sockets, earthing classes A–D, RCDs.
| Document | Japan: electrical rules (JIS, 100 V) |
| Edition | актуальные редакции |
| Status | Reference (Japan, JIS C 8303) |
| Issued by | JIS (Japanese Industrial Standards) |
| Applies to | Japanese installations: 100 V 50/60 Hz, type A sockets, earthing classes |
| № | Chapter / section |
|---|---|
| JIS C 8303 | Sockets and plugs |
| D-классы | Earthing classes A–D |
| JEC | Electrical codes (JEC) |
100 V, 50 Hz (Tokyo) / 60 Hz (Osaka); 200 V line-to-line for heavy appliances; type A sockets (JIS C 8303).
A ≤ 10 Ω; B ≤ 25 Ω; C ≤ 100 Ω; D ≤ 500 Ω — by resistance, not TN/TT systems.
30 mA mandatory for bathrooms, kitchens, laundries, outdoor sockets.
Automatic single-line diagrams, PUE/GOST/IEC calculations, specification and PDF — from one model.
Start freeData is for reference. Final design decisions must follow current regulations and a qualified engineer.
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