ວິ​ທີ​ການ​ກໍາ​ນົດ​ສາຍ inferior​?

Wire and cable are indispensable materials for the transmission of power energy, and is widely used in economic production, once the cable fails, it will not only threaten the safe and stable operation of the power grid, but also cause significant economic losses to families and society. Now there are a lot of unqualified cables in the market to disrupt the choice of consumers with fake and shoddy, and the following will introduce the identification method of concentrated inferior cables.

1. 1. ເບິ່ງຢ່າງລະມັດລະວັງໃນການພິມປ້າຍ, ເອົາໃຈໃສ່ຖ້າຫາກວ່າມີ typos ຫຼືຮົ່ມທີ່ແຕກຕ່າງກັນຂອງການພິມ, ຄໍາສັບຕ່າງໆແມ່ນມົວ.

2. 2.Twist ຜິວ insulating ດ້ວຍມື, ແລະສີແລະ wordsareeasy ກັບ erase ປົກກະຕິແລ້ວແມ່ນ inferior ສາຍ.

3. 3.Scratch and pinch the insulating skin with a fingernails.ມັນມັກຈະເປັນເສັ້ນທີ່ຕໍ່າກວ່າ ຖ້າສາມາດແຕ້ມ ຫຼືຖູອອກໄດ້.

4. 4.ຖ້າຫາກວ່າສາຍ insulated breaks ຫຼັງຈາກ bending ສາມຫາສີ່ຄັ້ງ, ອຸປະກອນການຂອງຊັ້ນ insulation ປົກກະຕິແລ້ວແມ່ນທຸກຍາກຫຼາຍ.

5. 5.Ignite ຊັ້ນ insulation. ມັນ​ເປັນ​ສາຍ inferior ifcan spontaneously combust ຫຼັງ​ຈາກ​ທີ່​ອອກ​ຈາກ flame ເປີດ​.

6. 6.ອາລູມິນຽມແລະທອງແດງຖືກນໍາໃຊ້ທົ່ວໄປໃນຫຼັກຂອງສາຍ, ແລະສີຂອງ coreis inferior ສີຂີ້ເຖົ່າແລະບໍ່ມີ luster ໂລຫະ.

7. 7.Measure the outer diameter of the insulated wire and the diameter of the core, the allowable error is ±10%, and if the measured value exceeds the allowable error, it is basically an inferior insulated wire.

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