35kV XLPE Insulated (Flame-Retardant) Power Cable

Depending on the flame retardant property, the 35kV XLPE insulated power cable is divided into two types, common type and flame-retardant type.

For the common type, it adopts advanced photo cross-linking and three layer co-extrusion technologies, so it shows the advantages of outstanding reliability, high degree of crosslinking, good resistance to high temperature, etc. Based on these features, it is suitable for power system where the conductor works at 90℃. On the other hand, the flame-retardant type uses protective jacket that is resistant to fire, and flame retardant is added to the materials which ensures the excellent fire proofing property of the cable. So, this product is applied for the places that have strict flame-retardant requirement.

Model Explanation

Model		Descriptions	Applications
Cu Core	Al Core
YJV	YJLV	XLPE insulated and PVC sheathed power cable	It can be laid in outdoor tunnel, cable duct, reinforced concrete pipeline and loose soil. It can not bear external mechanical force, but a certain tensile force is applicable.
YJV22	YJLV22	XLPE insulated, steel tape armored and PVC sheathed power cable	It is laid underground, and it can stand external mechanical force. However, big tensile force should not be applied.
YJV32	YJLV32	XLPE insulated, thin steel wire armored and PVC sheathed power cable	It is laid in tunnels, mines and indoor places, and mechanical force and quite big tensile force are both applicable.
YJV42	YJLV42	XLPE insulated, thick steel wire armored and PVC sheathed power cable	It is suitable for tunnel, mine, vertical place and indoor place. In addition, big tensile force and external mechanical force won't destroy this product.

Note:
1. The models also contain flame-retardant type.
2. The single core type should not be laid in iron pipes.
3. Halogen free low-smoke power cable is also provided on customer's request.
4. When signing the contract, the flame retardant type must be specified. For example, if type A is preferred, please add "A" to the end of "ZR", forming "ZRA", and A is usually used in places where the flame-retardant property is highly required. B and C follow the same rule. In addition, if there is no letter after "ZR", the cable will be produced following "ZRC".

Specifications

Model		No. of Core	Rated Voltage (kV)
Cu Core	Al Core		3.6/6	6/6 6/10	8.7/10 8.7/15	12/20	26/35 18/30 18/20
			Nominal Cross Section (mm2)
YJV YJY YJV22 YJV32 YJV33 YJV42 YJV43	YJLV YJLY YJLV22 YJLV32 YJLV33 YJLV42 YJLV43	1	10-1200 10-1200 10-1200 10-1200 10-1200 10-1200 10-1200	16-1200 16-1200 16-1200 16-1200 16-1200 16-1200 16-1200	25-1200 25-1200 25-1200 25-1200 25-1200 25-1200 25-1200	35-1200 35-1200 35-1200 35-1200 35-1200 35-1200 35-1200	50-1200 50-1200 50-1200 50-1200 50-1200 50-1200 50-1200
YJV YJY YJV22 YJV23 YJV32 YJV33 YJV42 YJV43	YJLV YJLY YJLV22 YJLV23 YJLV32 YJLV33 YJLV42 YJLV43	2	10-500 10-500 10-500 10-500 10-500 10-500 10-500 10-500	16-500 16-500 16-500 16-500 16-500 16-500 16-500 16-500	25-500 25-500 25-500 25-500 25-500 25-500 25-500 25-500	35-500 35-500 35-500 35-500 35-500 35-500 35-500 35-500	50-500 50-500 50-500 50-500 50-500 50-500 50-500 50-500

Note:
1. These models contain three types, which are flame-retardant type, low-halogen low-smoke type, as well as halogen free low-smoke type.
2. Non-magnetic material or magnetic loss reducing structure should be applied to armor the single core cable.

Technical Parameters

Nominal Cross Section (mm2)	Max. DC Resistance of Conductor at 20℃ (Ω/km)		Nominal Cross Section (mm2)	Max. DC Resistance of Conductor at 20℃ (Ω/km)		Nominal Cross Section (mm2)	Max. DC Resistance of Conductor at 20℃ (Ω/km)
	Cu Core	Al Core		Cu Core	Al Core		Cu Core	Al Core
1.5 2.5 4 6 10 16 25 -	12.1 7.41 4.61 3.08 1.83 1.15 0.727 -	- - - - 3.08 1.91 1.20 -	35 50 70 95 120 150 185 -	0.524 0.387 0.268 0.193 0.153 0.124 0.0991 -	0.868 0.641 0.443 0.320 0.253 0.206 0.164 -	240 300 400 500 630 800 1000 1200	0.0754 0.0601 0.0470 0.0366 0.0283 0.0221 - -	0.125 0.100 0.0778 0.0605 0.0469 0.0367 0.0291 0.0247

Qualifications

No.	Item	Rated Voltage U0/U (kV)
		1.8/3	3.6/6	6/6 6/10	8.7/10 8.7/15	12/20	18/20 18/30	21/35	26/35
1	DC Resistance of Conductor (Ω/km)	See the table above
2	Partial Discharge Test: Max. Value at 1.73U0 (pC)	10						10
3	5 Minutes Power Frequency Withstand Voltage Test (kV)	6.5	12.5	21	30.5	42	63	73.5	91
4	4 Hours Power Frequency Test (kV)	7.2	14.4	24	35	48	72	84	104
5	Hot Set Test (200℃, 15min, 20N/cm): Max. Elongation Rate / Max. Permanent Elongation Rate After Cooling (%)	175 / 15
6	Max. Partial Discharge at 1.73U0 After Three Times of Bending and Heat Cycling (pC)	5						5
7	Max. Tan Delta at U0 and Room Temperature Max. Tan Delta at 0.5-2U0	...	...	40×10-4 20×10-4				...
8	Max. Tan Delta at Room Temperature Max. Tan Delta When Heated to Long Time Working Temperature (90℃)	...	...	40×10-4 80×10-4				10×10-4
9	Flame Retardant Test	It meets the standards of GB/T 18380.3-2008 and IEC332-2C.

Note: No. 113 are routine tests before leaving factory, No. 4-5 are sample tests, and No. 6-9 are type testing items.

Structures

Medium voltage single core XLPE insulated and PVC sheathed (flame-retardant) power cable	Medium voltage single core XLPE insulated and stainless steel tape armored (flame-retardant) power cable
Medium voltage single core XLPE insulated, steel wire armored, and PVC sheathed (flame-retardant) power cable	Medium voltage XLPE insulated and PVC sheathed (flame-retardant) power cable
Medium voltage XLPE insulated, steel tape armored and PVC sheathed (flame-retardant) power cable with semi-conducting tape	Medium voltage XLPE insulated, steel tape armored and PVC sheathed (flame-retardant) power cable without semi-conducting tape

Standards
GB/T 12706-2008: Power cables with extruded insulation and their accessories for rated voltage from 1kV (Um=1.2kV) up to 35kV (Um=40.5kV), IEC 60502-2005

Applications
This 35kV XLPE insulated power cable is used for transmission and distribution of high voltage power lines with rated voltage of 35kV.

Application Properties
The maximum rated temperature for the conductor is 90℃. However, its temperature should not exceed 250℃ during short circuit, and the short circuit should not last for 5 seconds or longer time. On the other hand, when laying the cable, the ambient temperature should not be lower than 0℃, otherwise, preheating is needed.

Minimum bending radius: 15 times of overall cable diameter for single core type, and 10 times of overall cable diameter for multi-core type.

Outer Diameter and Weight

3.6/6kV single core XLPE insulated power cable
6/6kV 6/10kV single core XLPE insulated power cable
8.7/10kV 8.7/15kV single core XLPE insulated power cable
18/20kV 18/30kV single core XLPE insulated power cable
21/35kV single core XLPE insulated power cable
26/35kV single core XLPE insulated power cable
3.6/6kV three core XLPE insulated power cable
6/6kV three core XLPE insulated power cable
8.7/10kV 8.7/15kV three core XLPE insulated power cable
12/20kV three core XLPE insulated power cable
26/35kV three core XLPE insulated power cable

Related Names
Flame Resistant Power Cable Supplier | Industrial Electrical Cable | Medium Voltage Power Product