JEFR-ZR switch cabinet cable, JBQ motor lead wire

2025-09-04 Leave a message

JBQ Copper Core Rubber Insulated Nitrile Sheathed Motor Winding Lead Wires, 500V, 1400V

Technical Parameters:

1. Conductor: Tinned copper wire. Its construction conforms to the requirements in the table below, and its performance meets the requirements of JB947-76, "Rubber and Plastic Insulated Wire and Cable Copper Conductive Core."

2. Insulation rubber properties conform to JB664-77, "Rubber for Wire and Cable." Insulation thickness conforms to the requirements in the table below, with a tolerance of -10%. The thickness at the thinnest point must be no less than 90% of the nominal value minus 0.1mm.

3. Sheath rubber properties conform to JB664-77, "Rubber for Wire and Cable." Sheath thickness conforms to the requirements in the table below, with a tolerance of -10%. The difference is -20%, and the thickness at the thinnest point must be no less than 80% of the nominal value.

4. Finished wires must withstand the AC 50Hz withstand voltage test specified in OYYDDL0118-2003.

5. The DC resistance of the conductor core of the finished wires at 20°C must comply with the requirements of Tables 1 and 2.

6. The wires must withstand a paint immersion test. After being heated at 130±5°C for 5 hours, the cables are immersed in 1032 varnish at 50±5°C for 30 minutes, removed and drained, and then heated at 130±5°C for 48 hours. Finally, the cables are wound onto a round rod of the specified diameter. The wire sheath must be free of cracks, brittleness, or stickiness.