450/750V Electrical Wire for Housing and Building

Specification:

1. The rated voltage of the wires should equal to or higher then the rated voltage of the system when wires are used at AC system. If the wires are used at DC system, the rated voltage of system should lower then 1.5 times as high as rated voltage of cable and wires. The working voltage of the system could be 1.1 times as high as the rated voltage of the cable.
2. The long term working temperature should lower then 70oC. The working temperature of BV-90 should lower then 90oC. And the laying temperature should higher then 0oC.
3. The curve diameter of the wire should longer than 8 times of the diameter of the outer diameter of cable and wires if their outer diameter is 25 mm or above. If the diameter of cable and wires is above 25 mm, the curve diameter should be at least 12 times of the outer diameter of the cable and wires.
4. Type and Laying place and requirement

Nominal section (mm 2 )	Number/diameter of core (mm)	Maximum outer diameter (mm 2 )	Reference weight (Kg/km)		Conductor resistance at 20°C ≤(Ω/km)
			copper	aluminum	aluminum	copper
1.5(A)	1/1.38	3.3	20.3	-----	-----	12.1
1.5(B)	7/0.52	3.5	21.6	-----	-----	12.1
2.5(A)	1/1.78	3.9	31.6	17	11.80	7.41
2.5(B)	7/0.68	4.2	34.8	-----	-----	7.41
4(A)	1/2.25	4.4	47.1	22	7.39	4.61
4(B)	7/0.85	4.8	50.3	------	-----	4.61
6(A)	1/2.76	4.9	65	29	4.91	3.08
6(B)	7/1.04	5.4	71.2	----	----	3.08
10	7/1.35	7.0	119	62	3.08	1.83
16	7/1.70	8.0	179	78	1.91	1.15
25	7/2.04	10.0	281	118	1.20	0.727
35	7/2.52	11.5	381	156	0.868	0.524
50	19/1.78	13.0	521	215	0.641	0.387
70	19/2.14	15.0	734	282	0.443	0.268
95	19/2.52	17.5	962	385	0.320	0.193
120	37/2.03	19.0	1180	431	0.253	0.153
150	37/2.25	21.0	1470	539	0.206	0.124
185	37/2.52	23.5	1810	666	0.164	0.0991
240	61/2.25	26.5	2350	857	0.125	0.0754