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USE-2 Cable vs PV cable

Utilize 2 cable 

is utilized for sun powered modules interconnection for quite a while, while PV wire was specified in the 2008 release of the National Electrical Code at the first run through. Despite the fact that the structure and execution necessities of both are comparable, on account of its own remarkable establishment conditions, there are dependably contrasts. The accompanying correlation are relied on upon utilize, structure and parts of testing prerequisites.

Use Purpose

Marked as underground wires,USE-2 cable, for the most part is utilized for joint interfacing the supply gadgets, which can be just introduced at the main 90℃ and wet or dry environment. while PV cable is intended for association of sun powered modules, of which The appraised temperature is 90℃(wet) and a high of 150 ℃(dry).

Reason

Marked as underground wires, USE-2 cable, for the most part is utilized for joint interfacing the supply gadgets, which can be just introduced at the main 90℃ and wet or dry environment. while PV wire is intended for association of sun powered modules, of which The appraised temperature is 90℃(wet) and a high of 150 ℃(dry).

Evaluated voltage

USE-2 cable is to 600V, while PV wire can be 600V, 1000V and 2000V, so they can fit more than 600V the sun oriented module close planetary system. As per the US National Electrical Code(NEC), USE-2 cable must be utilized as a part of establishing of sun based photovoltaic array, however PV cable can be utilized for ungrounded and grounded sun powered clusters.

Structure

USE-2 cable cable can prevent physical damage through a mechanical protection , while PV wire use thicker insulating layer or jacket for additional protection. USE-2 cable wires is generally installed in the place not rotating or susceptible to mechanical damage, besides the conductor is solid or stranded , which can be made of copper, copper clad aluminum or aluminum. To ensure the performance meet for needs of the intended, PV wire can only use stranded copper conductors. What’s more, The minimum size of USE-2 cable conductor is 14 AWG, while PVwire is 18 AWG .

Insulation and sheathing material part

Generally, EPCV thermosetting insulated materials and sheath are used by USE-2 cable and PV wire , also other thermosetting material may occasionally be used, such as CP clad EP, CP clad, EPCV, SBR / IIR / NR and EP and so on. PV wire can refer UF linear design, but must use can withstand 90 ℃ or above temperature and wet environment full of PVC insulated and sheathed, of course additional 15 mils thickness is essential.

Test requirements

USE-2 cable is usually installed under ground or similar circumstances without UL. While due to be installed in exposed environments, PV wires need to pass burn test. However, overload testing and anti-extrusion, mechanical damage and shock test only applies to USE-2 wire. As for the shinning resistance and low temperature test , USE-2 cable just accept climate chamber resistance and minus 25 ℃ temperature box process for 300 hours. While to comply with more stringent regulation, PV wire need to accept climate resistance chamber and minus 40 ℃ cold box process for 720 hours .

Overall, according to sunlight resistance and low temperature flexibility, PV wire is better than USE-2 wire, which has a thicker insulation or jacket with flame level. As a result, it will become a main solar module interconnection wires.