220KV Copper wire shielded Power Cable

220kV copper wire shield for EHV. Uniform field distribution corona suppression fault return path. For GIS substations.

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Application

220kV EHV copper wire shielded cable for island interconnections, grid backbone, heavy load feeders, substations, switchgears, and GIS requiring uniform electric field distribution and fault handling capability. IEC 60840/IEC 62067 compliant.

Core Strengths

Uneven EHV electrical stress leads to premature aging and system failure. Our copper wire shield provides uniform field distribution, corona suppression, and fault current return path. ISO/CE certified.

Standard

GB11017， IEC60840

Construction

☉〉 Conductor: Stranded copper (class 2)

☉〉 Conductor screen: Semiconductive layer

☉〉 Insulation: XLPE (cross-linked polyethylene)

☉〉 Insulation screen: Semiconductive layer

☉〉 Semi-conductive water-blocking tape

☉〉 Copper wire screen

☉〉 Water-blocking tape

☉〉 Inner covering: PVC or PE

☉〉 Armor: Aluminum wire (AWA – non-magnetic)

☉〉 Outer sheath: HDPE or PVC

Features

☉〉 Rated voltage: 220kV (EHV transmission)

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

☉〉 Copper wire screen – uniform electric field, corona suppression, fault return path

☉〉 Non‑magnetic aluminum wire armor – eliminates eddy current losses in single‑core AC circuits; provides mechanical ☉〉 protection

☉〉 Dual water‑blocking tapes – prevent longitudinal moisture ingress

☉〉 Suitable for island interconnections, grid backbone, submarine sections, coastal power plants

☉〉 Installation: direct burial, ducts, tunnels, or submarine (with proper protection)

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

Product Data Sheet

220KV Copper wire shielded 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
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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