US power cable

①, American power cord plug: 120V 50/60HZ is divided into two-core wire, three-core wire and polar, non-polar, the power plug copper sheet to the United States must have a rubber sleeve;

The line printed on the two-core wire represents the live wire; the polar plug with the large pin is the zero line, and the small pin is the live line (the concave and convex surface of the power cord is zero, and the round surface of the line is the live line);

②. Types of US power cords: NISPT-2 double-layer insulated flat wire, SPT-1W single-layer insulated flat wire with grooves, SJTW waterproof power cord, SJTO oil-proof power cord, etc.

US power cord plug

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 flat wires, and SVT is double-layer insulation for round wires. Core insulation Outer insulation.

③. US plugs generally use the certification number without directly marking the UL pattern on the plug. Such as: E233157 E236618.

④. The US plug wire is different from the European plug wire:

The European plug is represented by "H";

How many wires are used in the US standard, such as: 2×1.31mm2 (16AWG), 2×0.824mm2 (18AWG): VW-1 (or HPN) 60℃ (or 105℃) 300V, 2: indicates the number of wire cores; 1.31 Or 0.824 mm2: means: the cross-sectional area of ​​the wire core; 16AWG: means the cross-sectional area of ​​the wire core mold, the same as the above mm2 is corresponding;

VW-1 or HPN: VW-1 is PVC; HPN: Neoprene

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).