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High conductivity: Extension cords in photovoltaic energy storage systems are usually made of highly conductive materials, such as pure copper or copper alloys, to minimize energy loss during current transmission.
Good insulation properties: Extension cords must have good insulation properties to prevent current leakage or short circuits to ensure the safety of the system.
Strong weather resistance: Since photovoltaic energy storage systems are usually installed outdoors, extension cords must be able to withstand various weather conditions, including high and low temperatures, humidity, UV rays, etc.
Flame retardant: In special circumstances, such as when the cable overheats or a short circuit occurs, the extension cord should be flame retardant to reduce the risk of fire.
Good flexibility: The components in the photovoltaic energy storage system may be distributed in different locations, and the extension cord needs to be flexible enough to be installed and used at different angles and locations.
Resistance to abrasion and corrosion: Because outdoor environments can contain sand, dust, moisture, and other corrosive substances, extension cords need to be resistant to abrasion and corrosion to maintain their long-term performance.
Comply with safety standards: The extension cord must comply with relevant safety standards and specifications, such as UL, CE, etc., to ensure its quality and safety.
Suitable specifications and capacity: Depending on the size and needs of the photovoltaic energy storage system, the extension cord should have suitable specifications and capacity to ensure stable transmission of current and voltage.
Ease of installation and maintenance: Extension cords should be designed and constructed for ease of installation and maintenance to reduce the difficulty and cost of system installation and subsequent maintenance.
Environmentally friendly materials: With the improvement of environmental awareness, more and more photovoltaic energy storage system extension cords are made of environmentally friendly materials to reduce the impact on the environment.