PUE 2.2: underground cable installation, ducts, joints, marking, sheath earthing.
| Document | PUE 7, Chapter 2.2 LV cable lines |
| Edition | 2002 (ПУЭ-7, гл. 2.2) |
| Status | Current |
| Issued by | Ministry of Energy of Russia |
| Applies to | LV cable lines up to 1 kV: underground, ducts, tunnels, racks |
| № | Chapter / section |
|---|---|
| 2.2.1–2.2.10 | General, route selection |
| 2.2.11–2.2.19 | Underground installation |
| 2.2.20–2.2.29 | Ducts, tunnels, racks |
| 2.2.30–2.2.50 | Joints, marking, earthing |
Depth ≥ 0.7 m (1 m under roads); sand bed and protection plates; 100 mm between cables; 0.6 m to buildings; 2 m to heat pipes.
Cables on supports; fire sealing at wall penetrations; UV protection on racks.
Joints only with splicing kits; marking tags; metal sheaths/armour earthed (2.2.44).
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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