Solar Cable – EN 50618

Application

Solar cables are intented for use in photovoltaic power supply systems and similar applications as free hanging, movable, fixed installation and buried in ground in constructional covered systems. The cables can be used indoor, outdoor, in hazard explosion areas, in industry and agriculture. They are suitable for applications in equipment with protective insulation (protecting Class 2).

Standard

EN 50618:2015.

Cable Construction

• Conductor: Fine Wire Tinned Copper Conductor according to BS EN 60228:2005 cl. 5.
• Insulation: UV resistant, cross linkable, halogen free, flame retardant compound for core insulation.
• Core Identification: Red, black or natural
• Sheath: UV resistant, cross linkable, halogen free, flame retardant compound for Sheath over insulation.
• Cable Colour: Red, Black, Black with red strip

Thermal parameters

• Max. Permissible Ambient Temperature: +90°C (stationary and in motion )
• Max. Permissible Operating Temperature of The Conductor: +120°C, Interpretation according to IEC 60216 : permanent temperature. 120°C for 20,000 h ( = 2.3 years ), at max. 90°C permanent temperature ( = 30 years ).
• Short – Circuit Temperature: 250°C referring to a period of 5 sec.
• Damp – Heat Test: According to EN 60068 – 2 – 78. 1,000h at 90°C and 85% humidity.
• Min. Permissible Ambient Temperature: -40°C (stationary and in motion)
• Resistance to Cold: Bending test at low temperature according to DIN EN 60811 – 1 – 4, Impact test similar to DIN EN 50305.
• Minimum Bending Radius: Fixed Installation approx. 4 x cable Ø

Electrical Parameters

• Voltage Rating: AC 0.6 / 1.0 kV
• Max. PV – System Voltage: DC up to 2.0 kV possible
• Max. Permissible Operating Voltage in AC Systems: 0.7 / 1.2 kV
• Max. Permissible Operating Voltage in DC Systems: 0.9 / 1.8 kV
• Test Voltage: AC 6.5 kV / DC 15 kV (15 min.)

Mechanical Parameters

• Tensile Load: 15 N / mm² in operation. 50 N/mm² during installation
• Shrinkage Test : According to EN 60811 – 1 – 3
• Shore-Hardness: 85 shore A according to DIN EN 53505
• Pressure Test at High Temperature: According to EN 60811 – 3 – 1
• Dynamic Penetration Test : According to requirements for cables for PV systems, DKE / VDE 411.2.3

Chemical Parameters

• Mineral Oil Resistance: 24h, 100°C according to DIN VDE 0473 – 811 – 2 – 1, DIN EN 60811-2-1
• Acid and Alkaline Resistance: According to EN 60811-2-1 (7 days, 23°C (N-Oxalic Acid, N-Sodium Hydroxide))
• Ammonia Resistance: 30 days in saturated ammonia atmosphere (internal testing)
• Weather Resistance: Ozone resistance according to DIN EN 50396 test Type B, HD 22.2 test Type B UV – resistance according to UL 1581 (Xenon – Test), ISO 4892 – 2 (Method A) and HD 506/A1-2.4.20. Absorption of water (gravimetric) according to DIN VDE 0473-811-1-3, DIN EN 60811 – 1 – 3.

Behavior in Case of Fire

• Flame propagation (Single cable): according to DIN VDE 0482 Part 332 – 1 – 2, DIN EN 60332 – 1 – 2.
• Flame propagation (Multiple cable): according to DIN VDE 0482 Part 266 – 2 – 5, DIN EN 50305 – 9.
• Low smoke emission: according to DIN VDE 0482 Part 268 – 2. DIN EN 50268-2 (light transmittance > 70% ).
• Corrosivity: according to DIN EN 50267 – 2 – 2.
• Toxicity: according to DIN EN 50305, ITC – index < 3.

Cable Design Parameters