Medium Voltage Cable Cu or Al/XLPE/Cts/Swa/PVC Cable

Indoor, Construction, Building

UL CSA Electrical Twu Wire

Medium Voltage Cable

8AWG,10AWG,12AWG,14AWG
ISO9001, CE, CCC, RoHS, UL CSA

Whatsapp: +86 16626488173

This 600-volt electrical wire is suitable for general power and lighting applications.

Application: For use in residential, commercial, and industrial buildings.
Voltage & Location: Rated for circuits up to 600V in both wet and dry locations.
Temperature Ratings:
- Type TW: 60°C
- Type THW: 75°C
- Type THW2: 95°C
Key Certifications: UL-listed as flame-retardant (VW-1), oil-resistant, and (for larger sizes) sunlight-resistant and suitable for use in cable trays.
Construction: Made with a bare copper conductor and printed PVC insulation.

Product Overview

This cable is designed for transmitting electrical power in alternating current (AC) systems with a frequency of 50Hz and a maximum rated voltage of 36kV. It is suitable for a wide range of applications, including indoor installations in power supply stations and switchboards, as well as outdoor use in cable ducts, direct burial, and on cable trays across industrial and power generation facilities.

Key Specifications

Rated Voltages:
The cable is available in several voltage ratings, including 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV, and 18/30kV.

Cable Construction:

Conductor: Class 2 stranded circular or compacted circular, available in copper or aluminum.
Conductor Screen: A semi-conductive layer.
Insulation: Cross-Linked Polyethylene (XLPE).
Insulation Screen: A semi-conductive layer.
Metallic Screen: Composed of copper wires, a copper tape, or a combination of both.
Inner Sheath: Polyvinyl Chloride (PVC).
Armouring: Steel Tape Armoured (SWA). For single-core cables, a non-magnetic armouring material is used.
Outer Sheath: Polyvinyl Chloride (PVC).

Manufacturing Process:
The conductor screen, XLPE insulation, and insulation screen are manufactured simultaneously using a triple extrusion process on a Continuous Vulcanization Line. This advanced method ensures pristine interfaces between the layers, which guarantees a construction free from Partial Discharge and delivers high operational reliability.

Main Technical Parameters

1) Conductor DC Resistance:
The maximum DC resistance of the conductor at 20°C is provided in the table below for various cross-sectional areas, for both copper (tinned and non-tinned) and aluminum conductors.

2) Partial Discharge Test:
All cables undergo a partial discharge test. The test voltage and the maximum permissible discharge magnitude (10 pC) for each voltage rating are detailed in the accompanying table.

3) AC Voltage Test:
Each cable is subjected to an AC withstand voltage test. The specific test voltage and duration (5 minutes) for each voltage rating are listed in the table.

4) Available Configurations:
The table provided outlines the available nominal cross-sectional areas (in mm²) and the number of cores for each rated voltage.

Technical Data Tables

Table 1-1: Maximum DC Resistance at 20°C (Ω/km)

Cross-Section (mm²)	16	25	35	50	70	95	120	150
Copper (Non-Tinned)	1.15	0.727	0.524	0.387	0.268	0.193	0.153	0.124
Copper (Tinned)	1.16	0.734	0.529	0.391	0.270	0.195	0.154	0.126
Aluminum	1.91	1.20	0.868	0.641	0.443	0.320	0.253	0.206
Cross-Section (mm²)	185	240	300	400	500	630	800	1000
Copper (Non-Tinned)	0.0991	0.0754	0.0601	0.0470	0.0366	0.0283	0.0221	0.0176
Copper (Tinned)	0.100	0.0762	0.0607	0.0475	0.0369	0.0286	0.0224	0.0177
Aluminum	0.164	0.125	0.100	0.0778	0.0605	0.0469	0.0367	0.0291

Table 1-2: Partial Discharge Test

Rated Voltage (kV)	3.6/6	6/10	8.7/15	12/20	18/30	21/35	26/35
Test Voltage (kV)	6.23	10.38	15.05	20.76	31.14	36.33	44.98
Max. Discharge (pC)	10	10	10	10	10	10	10

Table 1-3: AC Voltage Withstand Test

Rated Voltage (kV)	3.6/6	6/10	8.7/15	12/20	18/30	21/35	26/35
Test Voltage (kV)	12.5	21	30.5	42	63	73.5	91
Test Time (min)	5	5	5	5	5	5	5

Table 1-4: Rated Voltage, Core Numbers & Cross-Sectional Area

U0/Um (kV)	3.6/6	6/10	8.7/15	12/20	18/30	21/35	26/35
Single-Core (mm²)	25-630	25-630	35-630	35-630	50-630	50-630	50-630
Three-Core (mm²)	25-400	25-400	35-400	35-400	50-400	50-400	50-400

Cable Parameter

14	1	0.030	0.76	0.169	4.3	22	33
12	1	0.030	0.76	0.189	4.8	32	47
10	1	0.030	0.76	0.213	5.4	46	68
6	1	0.060	1.52	0.276	7	101	151
14	7	0.030	0.76	0.177	4.5	24	36
12	7	0.030	0.76	0.201	5.1	34	50
10	7	0.030	0.76	0.228	5.8	49	73
8	7	0.045	1.14	0.291	7.4	79	118
4	7	0.060	1.52	0.386	9.8	172	256
2	7	0.080	2.03	0.445	11.3	263	391
1	19	0.080	2.03	0.531	13.5	339	505
1/0	19	0.080	2.03	0.575	14.6	418	622
2/0	19	0.080	2.03	0.622	15.8	515	767
3/0	19	0.080	2.03	0.677	17.2	638	950
250	37	0.095	2.41	0.823	20.9	943	1404
300	37	0.095	2.41	0.882	22.4	1118	1664
350	37	0.095	2.41	0.937	23.8	1292	1923
400	37	0.095	2.41	0.984	25	1465	2180
500	61	0.095	2.41	1.079	27.4	1810	2694
600	61	0.110	2.79	1.197	30.4	2178	3241
800	61	0.110	2.79	1.343	34.1	2863	4260
1000	61	0.110	2.79	1.472	37.4	3538	5265