Indian Cables & Electricals Pvt. Ltd is a authorized distributors of POLYCAB SOLAR CABLES in Pune, Maharashtra.
POLYCAB is the industry leader in the manufacturing of Electric Wires & Cables in India.
POLYCAB announces the launch of Solar Cables to support Renewable Energy initiative of the world.
POLYCAB SOLAR CABLES
Solar Cables are designed to meet the growing needs of the solar industry. Our solar cables is just the beginning of our plans to develop and launch green technology in wires & cables. Solar Cables are flexible and are resistant to abrasion & moisture. Regardless of your panel-to-grid needs, we have the cables to meet your requirements.
Applications
These cables are designed for connecting photovoltaic power supply systems. These cables can be used indoor & outdoor for flexible and fixed installations with high mechanical strength in extreme weather conditions.
Standards
2 Pfg 1169/08.2007.
Electrical Characteristics
- Rated Voltage: 0.6/1 kV AC
- Rated DC Voltage: 1.5 kV
- Maximum Permitted DC Voltage: 1.8 kV (conductor/ conductor, non earthed system, circuit not under load)
- Maximum Permitted AC Voltage: 0.7/1.2 kV
- Working Voltage: DC 1000 V
- Insulation Resistance: 1000M SI – km
- Spark Test: 6000 Vac (8400 Vdc)
- Voltage Withstand: 6500 V as per EN50395 for 5 min
- Ampacity: According to requirements for cables for PV systems
| Conductor | Electrolytic Multi Stranded tinned copper conductor flexible as per I EC 60228 Class 5. |
| Insulation | Crosslinked Halogen Free & Flame Retardant Insulation |
| Sheath | Sheath Crosslinked Halogen Free & Flame Retardant Sheath in Black/Blue/Red Colour |
Thermal Characteristics
- Ambient Temperature: -40°C – +90°C
- Maximum Temperature at Conductor: 120°C (20000h)
- Short Circuit Temperature: 200°C (at conductor max. 5sec)
- Thermal Endurance Test: According to EN 60216-2 (temperature index +120°C)
- High Temperature Pressure: Test according to EN 60811-3-1
- Damp – Heat Test: According to EN 60068-2-78 1000 hrs. at 90°C with 85% humidity
Mechanical Characteristics
- Minimum Bending Radius: 5 x OD (fixed), 15 x OD (occasional flexing)
- Dynamic Penetration: According to requirement of Cables for PV systems 2 Pfg 1169/08.2007 Annex F
- Notch Propagation: According to 2 Pfg 1169/08.2007 Annex G
- Tensile Strength: 6.5 N/mm2 for insulation and 8 N/mm2 for sheathing – according to EN60811
- Elongation of Insulation and sheathing: 125% – according to EN60811
- Anticipated Period of Use: 25 years
- Shrinkage: 2% at 120°C according to EN60811-1-3
EU Directives
- The cables are RoHS (Restriction of certain Hazardous Substances) compaliant as per EU Directives 2002/95/EC
Chemical Characteristics
- Mineral Oil Resistance: according to EN 60811-2-1
- Ozone Resistance: according to EN 50396 part 8.1.3 Method B
- Weathering-UV Resistance: according to HD 605/Al or DIN 53367
- Ammonia resistant : 30 days in saturated ammonia atmosphere (internal testing)
- Very good resistance to oil and chemicals
- High wear and robust, abrasion resistant
- Acid & Alkaline Resistance: According to EN 60811-2-1 (Oxal acid and sodium hydroxide)
Fire Performance
- Flame retardant according to IEC 60332-1-2
- Low smoke emission < 20% as per ASTM D-2843
- Halogen free according to EN 50267-2-1/-2, IEC 60754-2
- Acid gas emission not more than 0.5% as per IEC 60754-1 pH minimum 4.3 as per IEC 60754-2 conductivity maximum 10 as per IEC 60754-2
- Toxicity according to EN 50305, ITC- index<3
Specifications
As per TUV Rheinland specification: 2 Pfg 1169/08.2007.
Solar Cables used in Solar Farm installations are mainly categorized as given below:
A) PV module to PV module and PV modules to Array Junction Box
These cables though not exposed to direct sunlight are throughout the day time exposed to diffused/indirect sunlight and atmospheric temperatures in open air.
TYPE 1
DC Solar Cables are Single core Copper cables each for +ve and —ve. They are insulated and sheathed with Cross Linkable LSOH which has UV as well as Ozone protection properties. These cables confirm to TUV specifications.
TYPE 2
DC Solar Cables are Single core Copper cables each for +ve and —ve. They are insulated with HR 105°C PVC compound and sheathed with UV stabilized HR 105°C PVC compound.
TYPE 3
DC Solar Cables are Single core Copper cables each for +ve and —ve. They are insulated with XLPE compound and and sheathed with UV stabilized PVC ST2 compound.
B) Array Junction Box to Main Junction Box and Main
These Solar DC cables which are not exposed to sunlight and are always routed through PVC Pipes which are laid underground. Choice of cables can be done from any one of the options given. Generally Option 3 is chosen for this route.
C) Inverter to Transformer Primary
The Three Phase AC output from the Inverters is connected to the Transformer Primary through Underground Armoured Cables. These cables are Copper or Aluminium XLPE insulated, GI armoured, UV stabilised PVC ST2.
D) Transformer Secondary to RMU/Switchyard
The Three Phase AC output from the Tranformer Secondary is connected to the RMU/Switchyard through Armoured Cables. These cables are Copper or Aluminium XLPE insulated, GI armoured, UV stabilised PVC ST2.
E) RMU to Switchyard
Three Phase AC connection from the RMU is connected to the Switchyard through Armoured Cables. These cables are Copper or Aluminium XLPE insulated, GI armoured, UV stabilised PVC ST2.
Note:
All Solar cables used with XLPE insulation armoured or unarmoured are specially manufactured with UV stabilised PVC ST2 outer sheathing which are specially formulated compounds to sustain the Direct / Diffused / Indirect Sunlight in case of exposed cables at any stage of installation.
YPE 1- Dimensions
Solar DC Cables from PV Module to Array Juntion Box(as per TUV Specifications-2 Pfg 1169/08.2007) |
||||
| Single Core Size in sq. mm | Max. Conductor Diameter | XL-LSOH Insulation Thickness-Nominal in mm | XL-LSOH Sheathing Thickness-Nominal in mm | Overall Dia. Nominal in mm |
| 1.5 | 0.26 | 0.5 | 0.5 | 4.10-/ 0.5 |
| 2.5 | 0.26 | 0.5 | 0.5 | 4.5+/ 0.5 |
| 4 | 0.31 | 0.5 | 0.5 | 5.1+/ 0.5 |
| 6 | 0.31 | 0.5 | 0.5 | 6.1+/ 0.5 |
| Solar DC Cables from Array Junction Box to Main Juntion Box & MJB to Inverter (as per TUV Specifications-2 Pfg 1169/08.2007) |
||||
| 10 | 0.41 | 0.5 | 0.5 | 6.6 +/-0.5 |
| 16 | 0.41 | 0.5 | 0.5 | 7.7 +/-0.5 |
| 25 | 0.41 | 0.9 | 1.0 | 10.5 +/-0.7 |
| 35 | 0.41 | 0.9 | 1.1 | 12.0 +/-0.7 |
| 50 | 0.41 | 1.0 | 1.2 | 14.0 +/-0.7 |
| 70 | 0.51 | 1.1 | 1.3 | 16.0 +/-1.0 |
| 95 | 0.51 | 1.1 | 1.5 | 18.5 +/-1.0 |
| 120 | 0.51 | 1.2 | 1.6 | 20.0 +/-1.0 |
| 150 | 0.51 | 1.4 | 1.7 | 22.5 +/-1.0 |
| 185 | 0.51 | 1.6 | 1.9 | 25.0 +/-1.0 |
| 240 | 0.51 | 1.7 | 2.1 | 28.0 +/-1.0 |
TYPE 2 – Dimensions
| Solar DC Cables from PV Module to Array Juntion Box (as per IS 694 & IS 1554 Part I guidelines) |
|||||
| Single Core Size in sq. mm | Max. Conductor Diameter | HR 105°C PVC Insulation Thickness- Nominal in mm |
UV HR 105°C PVC Sheathing Thickness-Nominal in mm | Overall Dia. Nominal in mm |
|
| 1.5 | 0.26 | 0.6 | 0.9 | 5.0 +/-0.5 | |
| 2.5 | 0.26 | 0.7 | 0.9 | 5.5 +/-0.5 | |
| 4 | 0.31 | 0.8 | 0.9 | 6.5 +/-0.5 | |
| 6 | 0.31 | 0.8 | 0.9 | 7.0 +/-0.5 | |
| Solar DC Cables from Array Junction Box to Main Junction Box & MJB to Inverter (as per IS 694 & IS 1554 Part I guidelines) |
|||||
| 10 | 0.41 | 1.0 | 0.9 | 8.5 +/-0.5 | |
| 16 | 0.41 | 1.0 | 0.9 | 9.5 +/-0.5 | |
| 25 | 0.41 | 1.2 | 1.0 | 11.0 +/-0.7 | |
| 35 | 0.41 | 1.2 | 1.1 | 12.5 +/-0.7 | |
| 50 | 0.41 | 1.4 | 1.3 | 15.0 +/-0.7 | |
| 70 | 0.51 | 1.4 | 1.4 | 17.0 +/-1.0 | |
| 95 | 0.51 | 1.6 | 1.5 | 19.5 +/-1.0 | |
| 120 | 0.51 | 1.6 | 1.6 | 21.0 +/-1.0 | |
| 150 | 0.51 | 1.8 | 1.8 | 23.5 +/-1.0 | |
| 185 | 0.51 | 2.0 | 1.9 | 25.5 +/-1.0 | |
| 240 | 0.51 | 2.2 | 2.2 | 29.5 +/-1.0 | |
TYPE 3 – Dimensions
| Solar DC Cables from PV Module to Array Juntion Box (as per IS 7098 Part I guidelines) |
||||
| Single Core Size in sq. mm |
Max. Conductor Diameter | XLPE Insulation Thickness-Nominal in mm | UV-PVC-ST2 Sheathing Thickness-Nominal in mm |
Overall Dia. Nominal in mm |
| 1.5 | 0.26 | 0.7 | 0.9 | 5.0 +/-0.5 |
| 2.5 | 0.26 | 0.7 | 0.9 | 5.5 +/-0.5 |
| 4 | 0.31 | 0.7 | 0.9 | 6.0 +/-0.5 |
| 6 | 0.31 | 0.7 | 0.9 | 6.5 +/-0.5 |
| Solar DC Cables from Array Junction Box to Main Juntion Box & MJB to Inverter (as per IS 7098 Part I guidelines) |
||||
| 10 | 0.41 | 0.7 | 0.9 | 7.5 +/-0.5 |
| 16 | 0.41 | 0.7 | 0.9 | 8.5 +/-0.5 |
| 25 | 0.41 | 0.9 | 1.0 | 10.5 +/-0.7 |
| 35 | 0.41 | 0.9 | 1.1 | 12.0 +/-0.7 |
| 50 | 0.41 | 1.0 | 1.2 | 14.0 +/-0.7 |
| 70 | 0.51 | 1.1 | 1.3 | 16.0 +/-1.0 |
| 95 | 0.51 | 1.1 | 1.5 | 18.5 +/-1.0 |
| 120 | 0.51 | 1.2 | 1.6 | 20.0 +/-1.0 |
| 150 | 0.51 | 1.4 | 1.7 | 22.5 +/-1.0 |
| 185 | 0.51 | 1.6 | 1.9 | 25.0 +/-1.0 |
| 240 | 0.51 | 1.7 | 2.1 | 28.0 +/-1.0 |
YPE 1– Current Carrying Capacity
| Solar DC Cables as per TUV Specifications-2 Pfg 1169/08.2007 | ||||
| Single Core Size in |
Maximum Resistance @20°C |
Current Carrying Capacity of DC Solar Cable with XL-LSOH Insulation and XL-LSOH Sheathing at 60°C |
||
| Single Cable in Air | Single Cable on Surface | 2 Adjacent Cable on Surface |
||
| Sq.mm | Ohms-Ω/Km | In AMPS-A | In AMPS-A | In AMPS-A |
| 1.5 | 13.700 | 30 | 29 | 24 |
| 2.5 | 8.210 | 41 | 39 | 33 |
| 4 | 5.090 | 55 | 52 | 44 |
| 6 | 3.390 | 70 | 67 | 57 |
| 10 | 1.950 | 98 | 93 | 79 |
| 16 | 1.240 | 132 | 125 | 107 |
| 25 | 0.795 | 176 | 167 | 142 |
| 35 | 0.565 | 218 | 207 | 176 |
| 50 | 0.393 | 274 | 260 | 219 |
| 70 | 0.277 | 406 | 386 | 325 |
| 95 | 0.210 | 491 | 467 | 393 |
| 120 | 0.164 | 576 | 547 | 461 |
| 150 | 0.132 | 670 | 637 | 536 |
| 185 | 0.108 | 784 | 745 | 627 |
| 240 | 0.0817 | 944 | 897 | 755 |
Information Source – Polycab