66KV Copper wire shielded Power Cable

66kV copper wire shield. Continuous shield conductor for end-to-end grounding. Reduces corona. For utility substations.

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Application

IEC 60840 66kV copper wire shielded HV cable for utility substations to urban underground feeders, regional grid backbones, and industrial zone power transmission requiring reliable fault handling and electrical stress control.

Core Strengths

Shield degradation in 66kV systems increases maintenance costs. Our uniform copper wire shielding reduces corona and provides continuous shield conductor for end-to-end grounding. CE/TÜV/ISO certified.

Standard

GB 11017， IEC60840

Construction

☉〉 Conductor: Stranded copper (class 2)

☉〉 Conductor screen: Semiconductive layer

☉〉 Insulation: XLPE (cross-linked polyethylene)

☉〉 Insulation screen: Semiconductive layer

☉〉 Copper wire screen (shield)

☉〉 Water‑proof tape: Water‑blocking tape

☉〉 Inner sheath: PVC or PE

☉〉 Armor: Galvanized steel wire (SWA) or steel tape (as required)

☉〉 Outer sheath: HDPE or PVC

Features

☉〉 Rated voltage: 66kV (HV transmission)

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

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

☉〉 Water‑proof tape – prevents longitudinal moisture ingress

☉〉 Armor – mechanical protection (crush / tensile resistance)

☉〉 Ideal for utility substations, urban underground feeders, regional grid backbones

☉〉 Installation: direct burial, ducts, or tunnels

☉〉 100% factory tested to IEC 60840

Product Data Sheet

66KV 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
66	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

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