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Special photovoltaic cable for solar equipment

Special photovoltaic cable for solar equipment

  • Categories:Industry News
  • Author:
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  • Time of issue:2015-10-26
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(Summary description)Withstand voltage test water temperature is 20±5℃, immersion length is 10M, time is 1H, AC power frequency voltage is 8000V, keep 5min without breakdown.

Special photovoltaic cable for solar equipment

(Summary description)Withstand voltage test water temperature is 20±5℃, immersion length is 10M, time is 1H, AC power frequency voltage is 8000V, keep 5min without breakdown.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2015-10-26
  • Views:0
Information

1. Structure

1--- Copper conductor;

2---Inner insulation;

3--- Outer sheath.

Two, use characteristics

1. The rated voltage is: U0/U: 600/1000V AC 900/1500V DC;

2. The maximum long-term working temperature does not exceed 90℃;

3. The ambient temperature during laying is -40℃ and above;

4. The minimum bending radius during laying: not less than 4D. (D is the outer diameter of the cable).

3. Technical performance

1. Insulation resistance Conductor resistance ρ≤4.95 Ω/km at 20°C; sheath surface resistance ρ≥109 Ω.cm.

2. Withstand voltage test water temperature is 20±5℃, immersion length is 10M, time is 1H, AC power frequency voltage is 8000V, keep 5min without breakdown.

3. Combustion test: Vertical combustion test: the distance between the upper fixed point and the carbonization start point is ≥50mm; the distance from the downward flame to the upper fixed point is ≤540mm; the combustion gas corrosion test: PH value ≥4.3, electrical conductivity ≤10μS/mm.

4. Tensile test of inner insulation mechanical properties before aging: tensile strength≥5N/mm2, elongation at break ≥200%; after aging (135±2℃), change in tensile strength≤±30%, elongation at break Elongation change ≤±30%; Air elastic aging tensile test: air pressure 5.5bar (127℃) Tensile strength change ≤+30%, breaking elongation change ≤+30%; Hot extension test: oven temperature 250± The elongation rate under 3℃, mechanical pressure 20N/cm2 load is ≤ 100%, and the elongation rate after unloading is ≤ 25%.

5. The mechanical properties of the sheath. Tensile before aging: tensile strength ≥ 10.0N/mm2; elongation at break ≥ 300%; after aging (85±2℃): elongation at break ≥ 250%; change in tensile strength ≤± -15%; change in elongation at break ≤-25%.

6. Weather resistance test Sheath low temperature bending test: the temperature in the freezer is -40±2℃, 16 hours, no cracks can be seen after the test; the inner insulation and the sheath ozone resistance: ozone concentration 250-300pphm, 24h, depending on Check that there is no crack in the 180o bending part; the weather resistance cycle of the sheath: spray water for 18 minutes, xenon lamp drying for 102 minutes, the test temperature is 45 ± 5 °C, the total test time is at least 500 hours, and then the 7.1 bending test at room temperature, no cracks.

7. The resistance to No. 2 oil (ISO1817) test after oil immersion, compressive strength retention ≥ 60%; after oil immersion, tensile elongation retention ≥ 70%; diameter change after oil immersion ≤ 160.

4. Product features

Passed TUV certification (TUV certificate R50087840)-Ozone resistance, UV, water vapor-lead-free, halogen-free, flame retardant, very low smoke emission-oil resistance-chemical corrosion resistance-conductor temporary overload up to +400 ℃-ambient temperature -40°C to +110°C (TUV upper limit +90°C)-Excellent flexibility under low temperature conditions-Resistance to cutting, tearing and crack extension-Insulation layer and outer sheath can be peeled off at one time-Service life exceeds 20 years (maximum + 90℃)-Compatibility with standard joints and connection systems-antibacterial, antimicrobial.

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