Corrugated AL Sheath HV POWER CABLE

Seamless corrugated aluminum sheath. Radial water tightness under extreme pressure. For submarine offshore wind tunnels.

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Application

66kV to 230kV HV power cable with seamless corrugated aluminum sheath for applications requiring radial water tightness: urban grid undergrounding, power station connections, submarine cables, offshore wind, tunnels, and island interconnections. IEC/IEEE compliant.

Core Strengths

Water ingress corrodes insulation, causing HV cable failure. Our seamless corrugated aluminum sheath blocks water under extreme pressure and provides mechanical protection. Ideal for submarine, offshore, and tunnels. ISO/CE.

Standard

GB11017， IEC60840

Construction

☉〉 Conductor: Stranded copper (class 2)

☉〉 Conductor screen: Semiconductive layer

☉〉 Insulation: XLPE (cross-linked polyethylene)

☉〉 Insulation screen: Semiconductive layer

☉〉 Copper wire with copper tape: Metallic shield

☉〉 Water-proof layer: Semi-conductive water-blocking tape

☉〉 Inner sheath: PVC or PE

☉〉 Corrugated aluminum tape: Seamless or welded corrugated AL sheath (radial water barrier)

☉〉 Outer sheath: HDPE or PVC (anti-corrosion)

Features

☉〉 Rated voltage: 66kV to 230kV (EHV transmission)

☉〉 XLPE insulation – 90°C continuous, 250°C short‑circuit

☉〉 Corrugated aluminum sheath – seamless radial water barrier under extreme pressure

☉〉 Provides mechanical protection and bending flexibility

☉〉 Ideal for submarine cables, offshore wind, urban grid undergrounding, tunnels

☉〉 Copper wire + tape shield – uniform field distribution, fault return path

☉〉 Water‑proof layer + inner sheath – double moisture protection

☉〉 Outer HDPE sheath – high abrasion, UV, and chemical resistance

☉〉 100% factory tested to IEC 60840 / IEC 62067

Product Data Sheet

Corrugated AL Sheath HV POWER CABLE
Rated voltage	Conductor size	Approx. Conductor dia.	XLPE Insulation thickness	Electric Capacity	Inductance		Loss of insulation	Max. D.C. Resistance
Rated voltage	Conductor size	Approx. Conductor dia.	XLPE Insulation thickness	Electric Capacity	Parallel laying	Trefoil laying	Loss of insulation	Cu	Al
KV	mm2	mm	mm	pf/m	mh/km	mh/km	w/m	Ω/km
110	240	18.4	19	136	0.757	0.508	0.175	0.0754	0.125
	300	20.6	18.5	147	0.734	0.489	0.19	0.0601	0.1
	400	23.5	17.5	165	0.708	0.465	0.212	0.047	0.0778
	500	26.6	17	182	0.683	0.445	0.234	0.0336	0.0605
	630	30.25	16.5	201	0.657	0.424	0.259	0.0283	0.0469
	800	34.23	16	224	0.633	0.406	0.288	0.0221	0.0367
	1000	41.4	16	265	0.594	0.386	0.341	0.0176	0.0291
	1200	45.28	16	282	0.577	0.375	0.363	0.0151	0.0247
220	240	18.4	27	110	0.895	0.543	0.559	0.0754	0.125
	300	20.6	27	117	0.873	0.524	0.591	0.0601	0.1
	400	23.5	27	125	0.846	0.503	0.633	0.047	0.0778
	500	26.6	27	134	0.822	0.484	0.678	0.0336	0.0605
	630	30.25	27	144	0.796	0.464	0.729	0.0283	0.0469
	800	34.23	27	155	0.771	0.446	0.785	0.0221	0.0367
	1000	41.4	27	180	0.733	0.423	0.912	0.0176	0.0291
	1200	45.28	27	190	0.715	0.411	0.965	0.0151	0.0247
	1400	48.2	27	198	0.703	0.403	1.004	0.0123	0.0202
	1600	50.41	27	204	0.694	0.397	1.034	0.0108	0.0177
	1800	53.35	27	212	0.682	0.39	1.074	0.0096	0.0157
	2000	57	27	222	0.669	0.382	1.123	0.0086	0.0141

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