Double Rubber insulated cable/Rubber Cables
 

1.    Standard:

The product fits to GB 5013.4 1997 (equals to IEC 245 1997), JB 8735.2 1998.

 

2.    Useage:

It is mainly used to connect the power supply and control the electric of agriculture, project, hoist, transportation and electric equipment. The type, designation and use in table 1.

Table 1: Type, Designation and Use

type	designation	Main use
245 IEC 53 (YZ) 245 IEC 57 (YZW)	Medium rubber flexible-cable	Various electric facility and tools
YC 245 IEC 66(YCW)	Heavy-duty rubber-sheath flexible-cable	Various moving electric equipment, can bear big mechanical force

 

3.       Scope of Cable Specification Table 2

Table 2: Scope of The Specification 

type	Rated voltage	Number of cores	Normal section (main core) area
245 IEC 53(YZ) 245 IEC 57(YZW)	300/500	2,3,4,5,6 3+1	0.75~6 1.5~6
YC 245 IEC 66(YCW)	450/750	1 2 3,4 3+1 5	1.5~400 1~95 1~150 2.5~150 1~25

 

4.       speciality

            Rated voltage U0/U 300/500V and 450/750V.

            Long allowable operating temperature 60.

            The Wderiving cable has the advantage of weather-proof and oil-resistant, fits to the situation of outer door and connecting oily dirt.

 

5.     We can produce special structure and function cable according to the requirement of the customers.

 

6.       main technical parameter

            structure

a.     conductor  the conductor is annealed copper, the max. Outer diameter of the single wire in the conductor fits to the fifth conductor rule of GB/T3956. the DC resistance conforms to the rule in table 3.

Table 3  DC resistance

Normal section	20 DC resistance not more than		Normal areas	20 DC resistance not more than
	tinning	Not tinning		tinning	Not tinning
0.5	40.1	39.0	50	0.393	0.386
0.75	26.7	26.0	70	0.277	0.272
1.0	20.0	19.5	95	0.210	0.206
1.5	13.7	13.3	120	0.164	0.161
2.5	8.21	7.98	150	0.132	0.129
4	5.09	4.95	185	0.108	0.106
6	3.39	3.30	240	0.0817	0.081
10	1.95	1.91	300	0.0654	0.0641
16	1.24	1.21	400	0.0495	0.0486
25	0.795	0.78
35	0.565	0.554

b. insulation    the insulation is the mixture of IE1 rubber.

c. sheath      the sheathes of 245 IEC 53 (YZ), YC are the mixture of SE3 rubber. The sheathes of 245 IEC 57 (YZW), 245 IEC 56 (YCW) are mixture of SE4 rubber.

Seventh, Size table 4 and table 5

 

Table 4: 300/500V   YZ, YZW medium rubber-sheath size

Number of cores ×normal area	Average outer diameter		Calculated weight
	lower limit	upper limit
2*0.75 2*1 2*1.5 2*2.5 2*4 2*6	6.0 6.6 8.0 9.5 10.6 11.8	8.2 8.8 10.5 12.5 13.7 15.1	64 77 112 167 234 325
3*0.75 3*1 3*1.5 3*2.5 3*4 3*6	6.5 7.0 8.6 10.0 11.3 12.6	8.8 9.2 11.0 13.0 14.5 16.1	81 93 136 198 297 423