D.C cable specially for Light Rail Transport

D.C cable specially for Light Rail Transport application

The cables are used in dense locations as subway tunnel device and stations. Once fire happening, the close environment would make fleeing and fire protection difficult. So it concludes that the laid cables in dense locations must have high flame resistance as well as not bringing smoke and deleterious gas with halogen. Therefore, it would decrease“the second disaster” for machines and apparatus and the cables have performances of sunlight resistance．waterproof and resistance to gopher Generally．the cables are suitable for subway tunnel device．between electric cable net and subway for power transformation 0f D．C．

D.C cable specially for Light Rail Transport Service Condition

1. DC cable conductive core of long-term allowable working temperature should not exceed 90 ℃.
2. short-circuit the longest duration of no more than 5s. Its conductive core of the maximum temperature does not exceed 250 ℃.
3. the ambient temperature while laying should not be less than O ℃.
4. the minimum bend radiusshould be not less than 12 times the cable diameter.

5. LSZH features: Meet GB / T 17560-1998 and GB / T 17651-1998 requirements;

D.C cable specially for Light Rail Transport Features

1.conductivity ≤ 10μs/mm; 2.DH value ≥ 4.3.
3.cable burning smoke density transmittance ≥ 60%.
4.smoke toxicity achieve public safety cable combustion safety level two levels:
5. the cable flame retardant meet GB/T18380.3-2001 cable burning test requirements for Class A;
6. the cable waterproof performance is excellent. Long-term immersion in water use, and has little effect on its electrical properties.
7. the cable has UV protection properties. UV resistance can fully meet the requirements of GB 14049 standard: Cable in the atmosphere and sunlight effects of aging, the sample after 42 days aging, the tensile strength and elongation at break sheath change rate should not exceed ± 30%; after 21 days of aging, the sheath tensile strength and elongation at break change rate should not exceed ± 15% range.
8. the cable has a rodent performance. By comparison with the blank sample. After two consecutive weeks tests. Specimen protection rate ≥ 95%.
9. can produce other models according to user needs and specifications of the DC cables. May also improve the cable temperature rating to 125 ℃.

D.C cable specially for Light Rail Transport Structure

Conductor + Insulation + Combination waterproof layer + armored layer + Oxygen insulation layer + outer sheath

D.C cable specially for Light Rail Transport Model

Model	Name
WDZR-DZY22	low smoke and halogen free flame retardant grade A Crosslinked Polyolefin insulated and sheathed steel tape armored cable special for light rail transport
WDZR-DZYR22	low smoke and halogen free flame retardant grade A Crosslinked Polyolefin insulated and sheathed steel tape armored soft cable special for light rail transport

D.C cable specially for Light Rail Transport Specification

Number	Nominal Cross-Section Area mm 2	Core structure No. ／ Dia mm	WDZR-DZY(R)22 Reference Weight kg/km				Max resistance at 20 ℃ Ω /km
			250V	750V	1500V	3000V	Max resistance at 20 ℃ Ω /km
			250V	750V	1500V	3000V	Copper	Tinned Copper
1	0.5	16 ／ 0.20 28 ／ 0.15	180	190	210	225	39.O 39.0	40 .1 40 .1
2	0.75	24 ／ 0.20 42 ／ 0.15	190	200	220	235	26.O 26.0	26 .7 26. 7
3	1.0	32 ／ 0.20 56 ／ 0.15	200	210	240	255	19.5 19.5	20. O 20.0
4	1.5	48 ／ 0.20 85 ／ 0.15	215	228	250	270	13.3 13.3	13.7 13.7
5	2.5	77 ／ O.20 140 ／ 0.15	240	250	280	300	7.98 7.98	8.21 8.21
6	4	56 ／ 0.30 231 ／ 0.15	280	290	320	340	4.95 4.95
7	6	84 ／ 0.30 189 ／ 0.20	330	340	370	390	3.30 3.30
8	10	147 ／ 0.30 324 ／ 0.20	410	430	460	490	1.91 1.91
9	16	133 ／ 0.39 513 ／ 0.20	—	530	560	600	1.21 1.21
10	25	209 ／ 0.39 783 ／ 0.20	—	680	740	780	0.780 O.780	O.795 0.795
11	35	304 ／ 0.39 1107 ／ O.20	—	860	900	940	O.554 0.554	O.565 0.565
12	50	418 ／ 0.39 702 ／ 0.30	—	1030	1070	1120	0.386 0.386	O.393 0.393
13	70	380 ／ 0.49 999 ／ 0.30	—	1330	1360	1410	O.272 O.272	O.277 O.277
14	95	513 ／ 0.49 1332 ／ 0.30	—	1650	1710	1760	O.206 0.206	0.210 0.210
15	120	629 ／ 0.49 1702 ／ 0.30	—	1920	1980	2039	O.161 O.161	0.164 O.164
16	150	777 ／ 0.49 2109 ／ 0.30	—	2260	2330	2400	0.129 0.129	0.132 O.132
17	185	976 ／ 0.49 1525 ／ 0.39	—	2680	2750	2850	O.106 O.106	O.108 O.108
18	240	1248 ／ 0.49 1976 ／ 0.39	—	3500	3570	3660	0.0801 0.0801	O.0817 0.0817
19	300	1586 ／ 0.49 2462 ／ 0.39	—	4120	4200	4280	0.0641 0.0641	O.0654 O.0654
20	400	2135 ／ 0.49 3416 ／ 0.39	—	5500	5600	5700	0.0486 O.0486	O.0495 0.0495