PUE 7, Chapter 2.3 HV cable lines — clause by clause

PUE 2.3: 6–10 kV cable installation, 1 m burial depth, joints, HV testing.

Document

Document	PUE 7, Chapter 2.3 HV cable lines
Edition	2002 (ПУЭ-7, гл. 2.3)
Status	Current
Issued by	Ministry of Energy of Russia
Applies to	Cable lines above 1 kV (6–10 kV intakes, feeders)

Document structure

№	Chapter / section
2.3.1–2.3.15	General
2.3.16–2.3.27	Underground installation
2.3.28–2.3.40	Ducts, tunnels, blocks
2.3.41–2.3.66	Racks, buildings, joints
2.3.67–2.3.120	Crossings, testing, marking

Underground (2.3.16–2.3.27)

Depth ≥ 1 m for >1 kV (0.7 m for LV); 100 mm between cables; 2 m to heat pipes.

Joints and testing (2.3.52–2.3.120)

Joints only with splicing kits; HV withstand test after installation.

Data is for reference. Final design decisions must follow current regulations and a qualified engineer.
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