ABOUT
Introduction
DC Solar Photovoltaic Cables are single core copper cables designed to connect photovoltaic power systems. These solar photovoltaic cables are used to charge controllers in solar systems and connect PV panels to inverters. They are a critical link in transferring DC current to the photovoltaic system, establishing efficient power transmission. Manufactured from annealed tinned copper conductor, they are insulated with cross linkable polyolefin compound and sheathed with halogen free polyolefin compound. These cables comply with BS EN 50618:2014 standard, built to withstand environmental conditions from -40° to 120°C, ensuring safety and efficiency. With comprehensive UV protection, ozone resistance, and flame-retardant properties, these cables represent the best cable for solar panels in both residential and commercial solar installations.
About DC Solar Photovoltaic Cables
Properties of DC Solar Photovoltaic Cables
- Can withstand upto 30 years even under tough external conditions.
- Resists extreme temperatures (-40°C to 120°C maximum at the core) and ozone resistant.
- Full protection against ultraviolet rays.
- Low smoke emission & low toxicity/corrosivity during a fire.
- Flame retardant, fire retardant.
- Suitable to common connector types.
- Generally conforming to National/International standards
Chemical Properties:
- Weather-resistant & UV-resistant
- Resistant to mineral oils & chemicals
- Resistant to acids & alkaline
- Ammonia Resistance
Mechanical Properties:
- Resistant to Impact, tear & abrasion
- Minimum bending radius – 4 times the overall diameter.
- Safe pulling force -50 N/sqmm.
Construction Of DC Solar Photovoltaic Cables
| Construction | Single Core |
| Voltage Grade | 1.5(1.8)KV DC / 0.6 / 1.0 (1.2) KV AC |
| Conductor Type | Annealed Tinned Copper |
| Conductor Size | From 1.5 Sq. mm to 240 Sq. mm |
| High Voltage Test | 6.5KV AC / 15KV DC for 5 minutes. |
| Minimum Insulation Resistance @ 90°C | 0.20MΩ/km |
| Spark Test | 6000 V AC / 8000 V DC |
| Maximum Operating Temperature | at 120°C during 20000 hours |
| Ambient Temperature | -40°C to +90°C |
Solar DC Wire Size Chart
| SIZE cross-sectional area (in sqmm) | Max. Conductor D.C. Resistance at 20°C in ohm/km | Average Diameter of Conductor (in mm) | Approx. Overall Diameter of cable (in mm) | Approximate Overall weight (in kg/km) | Minimum Bending radius (in mm) | Current rating under continuous operation @40°C (in A) | Maximum Resistance of Copper Sheath (Ω/km) | Short circuit current rating for 1 sec. duration (in kA) |
| 1.5 | 1.37 | 1.46 | 4.46 | 4.86 | 35 | 19 | 22 | 0.189 |
| 2.5 | 8.21 | 1.89 | 4.88 | 5.28 | 46 | 21 | 30 | 0.315 |
| 4.5 | 5.09 | 2.39 | 5.39 | 5.79 | 64 | 23 | 42 | 0.504 |
| 6.0 | 3.39 | 2.93 | 5.93 | 6.33 | 84 | 25 | 52 | 0.756 |
| 10 | 1.95 | 3.86 | 7.26 | 7.66 | 133 | 31 | 76 | 1.26 |
| 16 | 1.24 | 5.39 | 8.79 | 9.19 | 195 | 37 | 95 | 2.02 |
| 25 | 0.795 | 6.73 | 10.53 | 11.13 | 290 | 45 | 124 | 3.15 |
| 35 | 0.565 | 8.08 | 11.38 | 12.48 | 390 | 50 | 159 | 4.41 |
| 50 | 0.393 | 9.69 | 13.49 | 14.09 | 530 | 56 | 185 | 6.30 |
| 70 | 0.277 | 11.54 | 15.34 | 15.94 | 715 | 64 | 239 | 8.82 |
| 95 | 0.210 | 13.25 | 17.05 | 17.85 | 920 | 71 | 290 | 11.97 |
| 120 | 0.164 | 15.00 | 18.80 | 19.60 | 1150 | 78 | 335 | 15.12 |
| 150 | 0.132 | 16.77 | 21.37 | 22.37 | 1460 | 89 | 385 | 18.90 |
| 185 | 0.108 | 18.54 | 23.54 | 24.54 | 1770 | 98 | 440 | 23.31 |
| 240 | 0.0817 | 21.33 | 26.33 | 27.33 | 2300 | 110 | 520 | 30.24 |
Application of DC Solar Photovoltaic Cables
- Rooftop solar installations: Connect solar panels in residential and commercial rooftops in photovoltaic systems.
- Solar farms: Designed for large scale solar farms requiring UV protection with extended service life.
- Off-grid systems: Perfect for remote locations in standalone conditions.
Why Choose Tempsens For DC Solar Photovoltaic Cables
- Over three decades of specialized cable manufacturing experience in thermal and electrical solutions.
- Standard compliance conforming to BS EN 50618:2014 Standard.
- Operating temperature range between -40°C to 120°C ensures reliability across various climatic conditions
- LSZH construction ensures minimal toxic emissions
- Color coded identification and 4x bending radius simplifying installations.
- Solar dc wire size chart covers 15 sizes from 1.5-240 sq.mm for all installation requirements.
FAQ
Frequently Asked Questions
Find answers to frequently asked questions related to DC Solar Photovoltaic Cables.
The Solar DC cable is a special single core copper conductor designed to transfer DC current directly to the PV system. These are made from annealed tinned copper conductor with cross linked insulation.
Based on installation distance and current specifications, choosing a right size for the solar panel’s DC cable is critical. The sizing chart contains wire sizes from 1.5 square millimeters (19 Amps) for small scale residential applications up to 240 square millimeters (520 Amps) for commercial use; typical wire sizes would be 4 square millimeters (42 Amps), 6 square millimeters (52 Amps), 10 sqmm (76 Amps) or 16 sqmm (95 Amps), depending on the number of panels and their capability.
The price of DC solar cables will depend on the size of the conductors, the type of insulation used, and how many cables are ordered. The actual pricing will be affected by the cross-sectional area of the conductors, which can range from 1.5 to 240 sq.mm, the specifications used to build each conductor (e.g., tinned copper, LSZH/XLPO insulation), and other standards that must meet BS EN 50618: 2014. You can also contact Tempsens for competitive quotations based on the unique specifications of your solar photovoltaic cable.
