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1. US Standard Power Cord: 120V 50/60HZ is divided into two-core wire, three-core wire and polar, non-polar, the power plug copper sheet going to the United States must have a plug terminal sheath;
The line printed on the two-core wire represents the live wire; the connection wire with the large polar plug pin is the zero wire, and the connection wire with the small pin is the live wire (the concave and convex surface of the power cord is zero, and the round surface of the wire is the live wire);
2. The wire has two modes: NISPT-2 double insulation, XTV, and SPT single insulation
NISPT-2: NISPT means double-layer insulation, -2 surface two-core wire core insulation outer insulation;
XTV and SPT: Indicates a single-layer insulation layer, -2 surface two-core wire (the wire body is grooved, and the outer insulation is directly wrapped with copper core conductor);
SPT-3: Indicates single-layer insulation with a ground wire, -3 indicates a three-core wire (the wire body has a groove, and the ground wire in the middle is double-layer insulation);
Both SPT and NISPT are bias lines, and SVT is double-layer insulation for round lines. Core insulation Outer insulation
3. American plugs generally use the certification number without directly marking the UL pattern on the plug. Such as E233157 E236618, and printed on the outer quilt of the wire.
4. The difference between American plug wire and European plug wire:
The European plug is represented by "H";
How many wires are used for the US standard, such as 2×1.31mm2 (16AWG), 2×0.824mm2 (18AWG): VW-1 (or HPN) 60℃ (or 105℃) 300Vmm2 number;
1.31 or 0.824 mm2: means: the cross-sectional area of the wire core;
16AWG: Indicates the cross-sectional area of the core mold, which corresponds to mm2 above;
VW-1 or HPN: VW-1 is PVC material mm2 is neoprene material;
60℃ or 150℃ is the temperature resistance of the power cord;
300V: The voltage resistance of the power cord is different from that of the European standard (the European standard is represented by 03 or 05).
To learn more, please continue to pay attention to our power cord wholesalers.
