High Voltage Power Cable up to 500kv Cable/ Termination

• Customization: Available
• Application: Construction, Overhead, Underground, Industrial, Power Station, Telecommunication
• Voltage: High Voltage Cable
• Model NO.: YJLW
• Current: DC & AC
• Insulation Material: XLPE
• Sheath Material: PVC
• Material Shape: Round Wire
• Wire Core Material: Bare Copper Wire
• Certification: ISO, CCC, CE, RoHS, VDE
• Model: Yjlw
• Brand: 9V
• Cross Sectional Area: 240-1600
• Customized: Yes
• Delivery Time: 15 Days
• Pringting: Yes
• Transport Package: Drum
• Specification: 1.0*1.2*1.0
• Trademark: 9V
• Origin: China
• HS Code: 8544492100
• Production Capacity: 2 Million Km/Year
• Package Size: 2.00cm * 1.50cm * 2.00cm
• Package Gross Weight: 2000.000kg

Product Description

50/66kV Copper Conductor XLPE Insulated Corrugated Aluminum Sheath PE Sheath Power Cable



Product Introduction
High Voltage Power Cables are designed for fixed underground installations to transmit and distribute electrical energy efficiently over long distances. They operate at AC rated voltages up to 500 kV, ensuring reliable power delivery in urban grids, industrial complexes, and cross-river/seabed applications. Their robust construction minimizes energy loss and withstands harsh environmental conditions.  

Product Description





Applications 
- Underground Power Grids: Urban and industrial power distribution.  
- Submarine Cables: Transmitting power across rivers and seas.  
-Power Stations: Lead-out lines for electricity generation facilities.  


Features
- High Efficiency: Low dielectric loss due to XLPE insulation.  
- Durability: Resistant to thermal aging, chemical corrosion, and mechanical stress.  
- Safety: Integrated overvoltage and overheating protection systems.  
- Waterproof Design: Laminated aluminum tape prevents moisture ingress.   

Standards  
- IEC 60840: For cables with rated voltages above 30kV (Um =36kV) up to 150kV (Um = 170kV).  
- IEC 62067: Covers extruded insulation cables for voltages exceeding 150kV (Um = 170kV) up to 500kV (Um = 550kV).  
- IEC 60502: Specifies test requirements for cables rated 6-30kV.  

Construction
1. Conductor: Plain circular compacted aluminum or copper, offering high conductivity and flexibility (cross-section: 185-2500 mm²).  
2. Insulation: Superclean cross-linked polyethylene (XLPE) rated for 90°C, ensuring thermal stability and dielectric strength.  
3. Screens:  
   -Conductor/Insulation Screen: Extruded semiconductive compounds bonded to the insulation for uniform electric field distribution.  
   - Metallic Screen: Helically applied uncoated copper wires to handle earth-fault currents.  
4. Radial Water Barrier: Laminated aluminum tape for moisture resistance.  
5. Outer Sheath: Black polyethylene (PE) compound for mechanical and environmental protection.  ---

Key Parameters  
- Voltage Ratings: 50/66kV, 64/110kV, 76/132kV, 127/220kV, 290/500kV.  
- Test Voltages:  
  - Power Frequency Test: 65kV for 30 minutes (IEC 60840).  
  - Partial Discharge Test: ≤10pC for 8.7/15kV cables; ≤5pC for 26/35kV cables.  
- Temperature Range: -20°C to 90°C (operational).  

Technical Data  
- AC Voltage Test: Withstands 3.5U0 (e.g., 65kV for 26/35kV cables) without breakdown.  
- Partial Discharge Limits: Complies with IEC 60502 and IEC 60840, tested at 1.73U0.  
- Short-Circuit Capacity: Metallic screens designed to carry earth-fault currents.  


50/66kV XLPE Insulated Aluminum Corrugated Sheath Power Cable
 

Conductor			Nominal thickness of insulation mm	Aluminium sheath thickness mm	Non-metallic thickness mm
Nominal Cross- sectional Area	Shape	Approx.diameter
240		18.3	14.0	2.0	4.0
300		20.6	14.0	2.0	4.0
400		23.1	14.0	2.0	4.0
500		26.4	14.0	2.0	4.0
630		30.1	14.0	2.0	4.0
800		35.2	14.0	2.0	4.0
1000		39.5	14.0	2.3	4.0
1200		42.6	14.0	2.3	4.0
1400		46.0	14.0	2.3	4.0
1600		49.2	14.0	2.3	4.0

 

Approx. overall Diameter mm	Approx.weight of completed cable		Approx.weight of completed cable		Conductor D.C resistance at 20ºC Q/km		Cable  Capacity μF/km
	YILW02 YJLW02-Z	YJLW03 YJLWO3-Z	YJLLW02 YJLLWO2-Z	YJLLWO3  YJLLW03-Z	Copper conductor	Aluminium conductor
81.0	7308	6721	5819	5233	0.0754	0.125	0.169
83.3	8078	7473	6213	5609	0.0601	0.100	0.181
85.8	9077	8453	6725	6101	0.0470	0.0778	0.194
90.4	10435	9777	7405	6744	0.0366	0.605	0.213
94.1	12056	11370	8737	7450	0.0283	0.0469	0.232
100.4	14399	13664	9278	8544	0.0221	0.0367	0.259
105.3	16742	15970	10493	9721	0.0176	0.0291	0.281
108.4	18713	17918	11319	10524	0.0151	0.0247	0.296
111.8	20848	20027	12217	11396	0.0129	0.0212	0.313
116.0	23112	22259	13151	12298	0.0113	0.0186	0.329

Packing & Shipping 
- Packaging: Wooden drums or steel-reinforced reels with waterproof wrapping.  
- Labeling: IEC-compliant markings (voltage, size, manufacturing date).  
- Shipping: ISO-compliant containers with shockproof securing.  
- Storage: Dry, ventilated environments; avoid direct sunlight.