Concentric Cable

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Concentric & Split Concentric Cable, Allied Wire & Cable

Application
Concentric cables are commonly used for power distribution network, ammeter panel, instrument or circuit panel, which can be laid directly underground or outdoors and even applicable in dry and wet conditions.

Construction

Conductor: Class 2 copper conductor or 8000 series aluminum alloy
Insulation: XLPE insulation
Cable inner sheath: PVC
Concentric layer: Copper/8000 series aluminum alloy
Cable wrapping tape: Non-absorbent material
Cable sheath: PVC (XLPE/PE) sheath

Standard
IEC60502-1, BS7870, ASTMD2655
ASTMB556, ASTMB193, ASTMB8, UL44, UL1581, UL854

ASTM Standard

Core and nominal cross section	Conductor		Insulation thickness	Concentric conductor		Thickness of cable shield	.	Cable weight/km	Max DC resistance of conductor (20℃)
Wire gauge	Number	Diameter mm	mm	Number	Diameter mm	mm	mm	kg/km	Ω/km ()	Ω/km (Concentric)
Copper conductor (US standard)
2X #12	7	0.78	1.14	39	0.321	1.14	7.74	108	5.43	5.50
2X #10	7	0.98	1.14	25	0.511	1.14	8.72	151	3.41	3.50
2X #8	7	1.23	1.14	25	0.643	1.14	9.74	214	2.14	2.20
2X #6	7	1.55	1.14	25	0.813	1.14	11.04	313	1.35	1.40
2X #4	7	1.96	1.14	26	1.020	1.14	12.68	472	0.848	0.85
3X #8	7	1.23	1.14	65	0.405	1.14	11.3X17.3	418	2.14	2.20
3X #6	7	1.55	1.14	65	0.511	1.52	13.2X20.2	620	1.35	1.40
3X #4	7	1.96	1.14	65	0.643	1.52	14.7X22.9	875	0.848	0.85
3X #2	7	2.47	1.14	65	0.823	1.52	16.6X26.3	1275	0.524	0.53
Aluminum alloy conductor (US standard)
2X #12	7	0.78	1.14	39	0.321	1.14	7.74	67	8.88	8.90
2X #10	7	0.98	1.14	25	0.511	1.14	8.72	85	5.59	5.60
2X #8	7	1.23	1.14	25	0.643	1.14	9.74	110	3.52	3.60
2X #6	7	1.55	1.14	25	0.813	1.14	11.04	148	2.21	2.30
2X #4	7	1.96	1.14	26	1.020	1.14	12.68	206	1.39	1.40
3X #8	7	1.23	1.14	65	0.405	1.14	11.3X17.3	262	3.52	3.60
3X #6	7	1.55	1.14	65	0.511	1.52	13.2X20.2	370	2.21	2.30
3X #4	7	1.96	1.14	65	0.643	1.52	14.7X22.9	488	1.39	1.40
3X #2	7	2.47	1.14	65	0.823	1.52	16.6X26.3	640	0.88	0.89

IEC Standard

Core and nominal cross section	Conductor		Insulation thickness	Concentric conductor			Thickness of cable shield	.	Weight of cable/km	Max DC resistance of conductor (20℃)
mm²	Number	Diameter mm	mm	Number	Diameter mm		mm	mm	kg/km	Ω/km ()	Ω/km (Concentric)
Copper conductor (IEC standard)
2X10	7	1.35	1.55	20		0.85	1.40	11.80	290	1.83	1.90
2X16	7	1.70	1.55	32		0.85	1.40	12.84	420	1.15	1.20
2X25	7	2.14	1.60	29		1.13	1.50	15.02	630	0.727	0.76
2X35	19	1.53	1.65	27		1.35	1.60	17.00	832	0.524	0.55
Aluminum alloy conductor (IEC standard)
2X10	7	1.35	1.55	23		1.13	1.40	12.41	192	3.08	1.335
2X16	7	1.70	1.55	26		1.13	1.40	13.46	230	1.91	1.808
2X25	7	2.14	1.6	29		1.13	1.50	15.08	290	1.20	1.0586
2X35	19	1.53	1.65	27		1.35	1.60	17.05	370	0.868	0.7966