Medium Voltage Cables ICEA S-93-639 15 kV-25KV-35 kV

15–35 kV MV cables certified to ICEA S-93-639.
Reliable 15kV/25kV/35kV cables for heavy-duty applications.
Reliable medium voltage cables for critical power systems.
High dielectric strength, long-lasting protection.
Trusted MV cable solutions for North American projects.

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Application Construction Characteristics Parameter Related Products

Application

Medium voltage power cables designed to ICEA S-93-639 / NEMA WC 74 standards are engineered for reliable performance in grounded and ungrounded systems operating at 15 kV, 25 kV, and 35 kV. These cables feature copper or aluminum conductors, thermoset XLPE or EPR insulation, concentric metallic shielding (copper tape or wires), and optional water-blocking layers for enhanced protection.

The insulation is rated for continuous operation at 90°C, with short-circuit temperature capability up to 250°C. Depending on system grounding, cables are manufactured with 100%, 133%, or 173% insulation levels to meet varying dielectric stress requirements.

ICEA MV cables are widely used in utility distribution networks, industrial facilities, wind and solar farms, and underground or ducted installations. Optional jackets in PVC, PE, or LSZH are available to provide resistance to UV, moisture, and mechanical damage.

These cables offer excellent electrical integrity, thermal stability, and long service life, even in harsh conditions. Full compliance with ICEA S-93-639, IEEE 383/1202, and UL standards ensures high reliability and safety for medium voltage power transmission in North American and global projects.

Specifications

Aspect	Details & Applications
Standard	ICEA S-93-639 (also known as NEMA WC74) – North American standard for shielded MV cables
Voltage Classes	5–15 kV, 15–25 kV, and 25–35 kV (designated by system maximum voltage levels)
Conductor Material	Annealed copper or aluminum, solid or stranded, per ASTM B8 / B231
Conductor Sizes	Typically from AWG #6 to 1000 kcmil (or equivalent mm² sizes)
Insulation Material	Thermoset XLPE (TR-XLPE for improved performance) or EPR (Ethylene Propylene Rubber)
Insulation Level	– 100% level: For grounded systems- 133% / 173%: For ungrounded or intermittently grounded systems
Insulation Thickness	Varies by voltage and insulation level; e.g. 15 kV/133% → ~345 mil (8.76 mm)
Conductor Shield	Semi-conducting layer over conductor for electrical field control
Insulation Shield	Semi-conducting layer + metallic shield (copper tape, wire, or concentric neutral)
Outer Jacket	PVC, PE, or LSZH; optional armor (interlocked aluminum or steel tape)
Temperature Rating	90°C continuous; 130°C overload; 250°C short-circuit
Standards Compliance	Also meets AEIC CS8 and IEEE 383 flame test
Applications	– Utility, industrial, and commercial medium voltage distribution- Direct burial, conduit, tray, or aerial installation- Power delivery from substations to transformers or switchgear

STANDARD

Medium Voltage Cables ICEA S-93-639 15 -35 kV Power Cable CU(AL)XLPEC

15 kV Power Cable CU(AL)XLPEC
Conductor			100% Insulation Level				133% Insulation Level
Size	Area	Nominal Diameter	Nominal Insulation Thicknes S	Nominal Sheath Thicknes S	Approx Overall Diameter	Approx Weight	Nominal Insulation Thicknes S	Nominal Sheath Thicknes S	Approx.Overall Diameter	Approx.Weight
AWG/kc mil	m㎡	mm	mm	mm	mm	kg/km	mm	mm	mm	kg/km
Copper Conductor
2	33.6	6.81	4.45	1.65	23.5	821	5.59	2.03	27	983
1	42.4	7.59	4.45	1.65	24.3	926	5.59	2.03	27.7	1093
1/0	53.5	8.53	4.45	2.03	26.2	1108	5.59	2.03	28.7	1229
2/0	67.4	9.55	4.45	2.03	27.2	1270	5.59	2.03	29.7	1394
3/0	85	10.7	4.45	2.03	28.3	1470	5.59	2.03	30.8	1598
4/0	107	12.1	4.45	2.03	29.7	1719	5.59	2.03	32.2	1853
250	127	13.2	4.45	2.03	30.8	1935	5.59	2.03	33.3	2073
350	177	15.6	4.45	2.03	33.2	2479	5.59	2.03	35.7	2626
500	253	18.7	4.45	2.03	36.3	3278	5.59	2.03	38.8	3437
750	380	23.1	4.45	2.03	40.7	4583	5.59	2.03	43.2	4758
1000	507	26.9	4.45	2.03	44.9	5881	5.59	2.79	49.2	6266
1250	633	31.8	5.59	2.79	54.1	7631	5.59	2.79	54.1	7631
Aluminum Conductor
2	33.6	6.81	4.45	1.65	23.5	607	5.59	2.03	27	770
1	42.4	7.59	4.45	1.65	24.3	657	5.59	2.03	27.7	824
1/0	53.5	8.53	4.45	2.03	26.2	769	5.59	2.03	28.7	889
2/0	67.4	9.55	4.45	2.03	27.2	843	5.59	2.03	29.7	967
3/0	85	10.7	4.45	2.03	28.3	930	5.59	2.03	30.8	1058
4/0	107	12.1	4.45	2.03	29.7	1039	5.59	2.03	32.2	1173
250	127	13.2	4.45	2.03	30.8	1129	5.59	2.03	33.3	1267
350	177	15.6	4.45	2.03	33.2	1351	5.59	2.03	35.7	1499
500	253	18.7	4.45	2.03	36.3	1666	5.59	2.03	38.8	1825
750	380	23.1	4.45	2.03	40.7	2167	5.59	2.03	43.2	234
1000	507	26.9	4.45	2.03	44.9	2669	5.59	2.79	49.2	305
1250	633	31.8	5.59	2.79	54.1	3612	5.59	2.79	54.1	361

25 kV Power Cable CU(AL)XLPEC
100% Insulation Level
Size	Area	Nominal Diameter	Nominal Insulation	Nominal Sheath	Approx. Overall Diameter	Approx Weight	Nominal Insulation	Nominal Sheath	Approx Overall Diameter	Approx Wei
AWG/kcmil	m㎡	mm	mm	mm	mm	kg/km	mm	mm	mm	kg/km
					Copper C	onductor
1	42.4	7.59	6.6	2.03	29.7	1191	8.13	2.03	33.1	1372
1/0	53.5	8.53	6.6	2.03	30.7	1329	8.13	2.03	34.1	1516
2/0	67.4	9.55	6.6	2.03	31.7	1497	8.13	2.03	35.1	1689
3/0	85	10.7	6.6	2.03	32.8	1705	8.13	2.03	36.2	1902
4/0	107	12.1	6.6	2.03	34.2	1964	8.13	2.03	37.6	2168
250	127	13.2	6.6	2.03	35.3	2187	8.13	2.03	38.7	2397
350	177	15.6	6.6	2.03	37.7	2747	8.13	2.03	41.1	2968
500	253	18.7	6.6	2.03	40.8	3566	8.13	2.03	44.2	3803
750	380	23.1	6.6	2.03	45.2	4901	8.13	2.79	50.4	5358
1000	507	26.9	6.6	2.79	51.2	6428	8.13	2.79	54.6	6721
1250	633	31.8	6.6	2.79	56.1	7808	8.13	2.79	59.5	8125
					Aluminum C	onductor
1	42.4	7.59	6.6	2.03	29.7	921	8.13	2.03	33.1	1103
1/0	53.5	8.53	6.6	2.03	30.7	990	8.13	2.03	34.1	1176
2/0	67.4	9.55	6.6	2.03	31.7	1070	8.13	2.03	35.1	1262
3/0	85	10.7	6.6	2.03	32.8	1165	8.13	2.03	36.2	1362
4/0	107	12.1	6.6	2.03	34.2	1283	8.13	2.03	37.6	1487
250	127	13.2	6.6	2.03	35.3	1381	8.13	2.03	38.7	1591
350	177	15.6	6.6	2.03	37.7	1620	8.13	2.03	41.1	1841
500	253	18.7	6.6	2.03	40.8	1954	8.13	2.03	44.2	2191
750	380	23.1	6.6	2.03	45.2	2485	8.13	2.79	50.4	2942
1000	507	26.9	6.6	2.79	51.2	3216	8.13	2.79	54.6	3509
1250	633	31.8	6.6	2.79	56.1	3789	8.13	2.79	59.5	4106

35 kV Power Cable CU(AL)XLPEC
Conductor			100% Insulation Level				133% Insulation Level
Size	Area	Nominal Diameter	Nominal Insulation Thickness	Nominal Sheath Thickness	Approx. Overall Diameter	Approx. Weight	Nominal Insulation Thickness	Nominal Sheath Thickness	Approx. Overall Diameter	Approx. Weight
AWG/kcmil	mm²	mm	mm	mm	mm	kg/km	mm	mm	mm	kg/km
Copper Conductor
1/0	53.5	8.53	8.76	2.03	35.7	1610	10.67	2.03	39.2	1831
2/0	67.4	9.55	8.76	2.03	36.7	1786	10.67	2.03	40.2	2012
3/0	85	10.7	8.76	2.03	37.8	2002	10.67	2.03	41.4	2234
4/0	107	12.1	8.76	2.03	39.2	2271	10.67	2.03	42.8	2510
250	127	13.2	8.76	2.03	40.3	2503	10.67	2.03	43.9	2748
350	177	15.6	8.76	2.03	42.7	3080	10.67	2.03	46.3	3338
500	253	18.7	8.76	2.03	45.8	3922	10.67	2.79	51.2	4398
750	380	23.1	8.76	2.79	52	5495	10.67	2.79	55.6	5805
1000	507	26.9	8.76	2.79	56.2	6868	10.67	2.79	59.7	7200
1250	633	31.8	8.76	2.79	61.1	8283	10.67	2.79	64.6	8641
Aluminum Conductor
1/0	53.5	8.53	8.76	2.03	35.7	1270	10.67	2.03	39.2	1491
2/0	67.4	9.55	8.76	2.03	36.7	1359	10.67	2.03	40.2	1585
3/0	85	10.7	8.76	2.03	37.8	1462	10.67	2.03	41.4	1694
4/0	107	12.1	8.76	2.03	39.2	1591	10.67	2.03	42.8	1830
250	127	13.2	8.76	2.03	40.3	1697	10.67	2.03	43.9	1942
350	177	15.6	8.76	2.03	42.7	1953	10.67	2.03	46.3	2210
500	253	18.7	8.76	2.03	45.8	2310	10.67	2.79	51.2	2786
750	380	23.1	8.76	2.79	52	3079	10.67	2.79	55.6	3389
1000	507	26.9	8.76	2.79	56.2	3656	10.67	2.79	59.7	3988
1250	633	31.8	8.76	2.79	61.1	4264	10.67	2.79	64.6	4622

get in touch

Huili Cable Co., Ltd. (formerly Luohe Huili Cable Co., Ltd. and Luohe Cable Factory) was founded in 1989 and was renamed Huili Cable Co., Ltd. on September 14, 2024. The company's registered capital is RMB 200 million.

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