YJV22 Steel-Tape Armoured Power Cable — for direct burial.

XLPE-insulated, steel-tape armoured, PVC-sheathed 0.6/1 kV power cable for direct-buried distribution and mechanically exposed routes. Copper (YJV22) or aluminium (YJLV22), 1.5–400 mm², up to 5 cores.

0.6/1 kVSteel tape armour (STA)Direct burial ratedCu / Al1.5–400 mm²

§01 — Construction

What the armour does, layer by layer.

Technical data — reference only. Figures in the tables below are reference values for early-stage project comparison. Conductor size, insulation and sheath thickness, overall diameter, DC resistance and ampacity are confirmed against the approved cable schedule and the applicable standard (IEC 60502-1 / GB/T 12706.1) before production. Ampacity is quoted for installation in free air at 40 °C ambient; ratings for buried, in-conduit or tray installation differ. Dimensional and electrical tolerances follow the relevant standard.

الطبقة	Material	الوظيفة
الموصل	Cu / Al, class 1 solid or class 2 stranded (sector-shaped ≥ 25 mm²)	Load current
العزل	XLPE, 90 °C rated	Electrical insulation, one class above PVC
Bedding	Extruded PVC	Protects insulation under the armour
الدرع	Double galvanized steel tape (STA), helical	Crush, impact and rodent protection for buried routes
Outer sheath	PVC ST2 black (PE / LSZH optional)	Moisture, UV and abrasion resistance

YJV22 steel tape armoured XLPE power cable construction — YJV22 armoured construction · factory photo

INSTALLATION

Burial rules that matter

Minimum bending radius 12 × OD (single bend). Bed the cable on 100 mm sieved soil, cover with 100 mm sand plus protective tiles or warning tape, bury ≥ 0.7 m (deeper under roads and frost lines).

Full installation guide ships with the drums.

§02 — When armoured, when not

YJV vs YJV22 — the two-line decision.

Route condition	Recommended type	Why
Cable tray / ladder rack, indoor	YJV (unarmoured)	Lighter, cheaper, easier to terminate
Direct burial in soil	YJV22 / YJLV22	STA protects against backfill stones, settlement and rodents
Duct banks with sharp bends	YJV22 preferred	Armour takes the pulling and crush abuse
Vertical riser with long drop	YJV32 (steel wire)	SWA carries the cable’s own weight — ask for the 32 variant
Single-core AC circuits	YJV62 / YJV72 (non-magnetic)	Aluminium tape/wire armour avoids magnetic heating — confirm in RFQ

PRODUCT VIEWS

The range at a glance.

YJV22 steel-tape armored copper power cable - Lulian Cable product view — YJV22: steel-tape armour for direct burial.

Copper conductor XLPE power cable with armour - Lulian Cable product view — Armour bedding, galvanised steel tapes, PVC over-sheath.

Copper conductor power cable product view - Lulian Cable — Copper conductor builds 1.5 to 630 mm2.

§03 — FAQ

Common questions on armoured power cable.

Steel tape (STA) vs steel wire (SWA) armour — which one?

STA (YJV22) for direct burial and general mechanical protection — it resists crush but not longitudinal pull. SWA (YJV32) for vertical drops, suspension and routes under tensile load. For single-core AC cables, specify non-magnetic aluminium armour (YJV62/72) to avoid eddy-current heating of the armour.

Can YJV22 be laid in water or flooded ground?

Yes with the PE sheath option (ST7) — PVC sheath is fine for damp soil, but for permanently wet routes and water-logged ground we recommend the PE outer sheath and sealed end caps. State the water table condition in the RFQ.

What is the DC resistance and how do we check ampacity?

DC resistance follows IEC 60228 (e.g. 185 mm² Cu ≤ 0.0991 Ω/km, 185 mm² Al ≤ 0.164 Ω/km). Ampacity depends on soil thermal resistivity, burial depth, grouping and ambient temperature — we issue a project-specific rating with the formal offer, against your installation conditions.

Is YJV22 available with LSZH sheath?

Yes — WDZ-YJY22 combines the STA armour with a low-smoke halogen-free sheath for tunnels and occupied buildings. Smoke and halogen verified against IEC 61034 / IEC 60754.