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Specifications

1982 HeBei New Baofeng Cable & Wire Co.,Ltd was founded.
1997 Achieve ISO9001 Quality Certificate.
2001 Successfully d

The current rating values given in table may be considered applicable, without correction factors, for cables bunched together on cable trays, in cable conduits, pipes or trunking, unless more than six cables, which may be expected to operate simultaneously at their full rated capacity, are laid close together in a cable bunch in such a way that there is an absence of free air circulation them. In this case a correction factor of 0.85 should be applied.

Milestone
1982 HeBei New Baofeng Cable & Wire Co.,Ltd was founded.
1997 Achieve ISO9001 Quality Certificate.
2001 Successfully developed 500KV 2500sqmm XLPE power cable and got Type Test Certificate.
2004 Got ISO14001 Environment Certificate Got 220KV UG Cable PQ Test.
2007 Got first 500KV power cable EPC order-Longtan Hydropower station.
2008 Got 500KV power cable EPC order--Xuangang Thermal Power Station.
2009 till today Got seven 500KV power cable EPC projects and we are the only 500KV cable and accessories manufacturer in China.

Nominal cross-sectional area mm 2	Conductors in cables for fixed installations(IEC 60228 Class2)				Flexible conductors(IEC60228 Class5)
	Construction of conductor Number of wire/diameter mm	Diameter of conductor mm	Max. resistance of conductor at 20C Ω /km		Construction of conductor Number of wire/diameter mm	Diameter of conductor mm	Max. resistance of conductor at 20C Ω /km
	Construction of conductor Number of wire/diameter mm	Diameter of conductor mm	Tinned	Plain	Construction of conductor Number of wire/diameter mm	Diameter of conductor mm	Tinned	Plain
1	7/0.43	1.3	18.2	18.1	32/0.20	1.3	20.0	19.5
1.5	7/0.52	1.6	12.2	12.1	30/0.25	1.6	13.7	13.3
2.5	7/0.68	2.1	7.56	7.41	49/0.25	2.1	8.21	7.98
4	7/0.85	2.6	4.70	4.61	56/0.30	2.6	5.09	4.95
6	7/1.04	3.2	3.11	3.08	84/0.30	3.7	3.39	3.30
10	7/1.35	4.1	1.84	1.83	84/0.40	4.9	1.95	1.91
16	7/1.70	5.1	1.16	1.15	126/0.40	5.9	1.24	1.21
25	7/2.14	6.4	0.734	0.727	196/0.40	7.7	0.795	0.780
35	7/2.52	7.6	0.529	0.524	276/0.40	9.2	0.565	0.554
50	19/1.78	8.9	0.391	0.387	396/0.40	10.6	0.393	0.386
70	19/2.14	10.7	0.270	0.268	360/0.50	12.5	0.277	0.272
95	19/2.52	12.6	0.195	0.193	475/0.50	14.9	0.210	0.206
120	37/2.03	14.2	0.154	0.153	608/0.50	16.7	0.164	0.161
150	37/2.25	15.8	0.126	0.124	756/0.50	18.5	0.132	0.129
185	37/2.52	17.7	0.100	0.0991	925/0.50	20.5	0.108	0.106
240	37/2.85	20.0	0.0762	0.0754	1221/0.50	23.5	0.0817	0.0801
300	61/2.52	22.7	0.0607	0.0601	1525/0.50	26.5	0.0654	0.0641
400	61/2.85	25.6	0.0475	0.0470	2013/0.50	30.0	0.0495	0.0486