1、Photovoltaic cable standard
The common standards and differences of photovoltaic cables are shown in the following table. The user chooses the corresponding product model according to the voltage of the certification agency and photovoltaic power generation system approved by the country.
1、The Standards of PV Cable
Common photovoltaic cable standards and differences are shown in the table 1.1. The user selects the corresponding product model according to the license issuing agency approved by your country and the voltage of photovoltaic power generation system.
Table 1.1
Application of photovoltaic cable
2, the main characteristics of photovoltaic cable
2.1 Can be used in direct sunlight
2.2 Applicable ambient temperature -40℃~+90℃
2.3 The service life should be more than 20 years
2.4 Except 62930 IEC 133/134, other types of cables are made of low-smoke halogen-free flame retardant polyolefin materials.
2、Main characteristics of photovoltaic cable.
2.1 Allow long term use in the sun.
2.2 Applicable ambient temperature - 40 ℃ ~ + 90 ℃.
2.3 The service life should be more than 20 years.
2.4 Except 62930 IEC 133/134, other types of PV cables are made of low smoke halogen-free, flame retardant polyolefin.
3, the current carrying capacity of photovoltaic cable
The current carrying capacity of common photovoltaic cables should meet the requirements of Table A.3, and the current should be less than the data in the third column.
3、Current carrying capacity of photovoltaic cable
The current carrying capacity of common photovoltaic cables shall meet the requirements of table A.3, and the actual current shall be less than the data in the third column in solar system.
4. Construction precautions
4.1 Photovoltaic cables shall not be laid overhead, unless the metal protective layer is added.
4.2 Photovoltaic cable shall not be immersed in water for a long time, and prevent it from being in a humid environment for a long time that may be caused by anti-industrial reasons.
4.3 Photovoltaic cables shall not be directly buried in the soil.
4.4 Special photovoltaic connectors should be used when connecting photovoltaic cables and installed by professional electricians.
4. Construction precaution
4.1 photovoltaic cable shall not be laid overhead without adding metal protective layer.
4.2 photovoltaic cables shall not be immersed in water for a long time.
4.3 photovoltaic cables shall not be directly buried underground.
4.4 when connecting photovoltaic cables, special photovoltaic connectors shall be used and installed by professional electricians.