Brief introduction of American plug

①American plug: 120V 50 / 60HZ is divided into two-core wire, three-core wire, and polar, non-polar. The copper plug of the power plug to the United States must have a plug terminal sheath;

The line printed on the two core wires indicates the live line; the connection line with a large plug is a neutral line, and the connection line with a small pin is a live line (the concave and convex surface of the power cord is zero and the round surface is a live line);

② There are two modes of wire: NISPT-2 double-layer insulation, XTV, and SPT single-layer insulation

NISPT-2: NISPT means double-layer insulation, two-core wire on the -2 surface, core insulation, and outer insulation;

XTV and SPT: indicates a single-layer insulation layer, -2 cores on the surface (the wire body has grooves, and the outer insulation directly covers the copper core conductor);

SPT-3: indicates a single-layer insulated ground wire, -3 indicates a three-core wire (the wire body has a groove, and the middle ground wire is a double-layer insulation);

Both SPT and NISPT are bias wires, and SVT is round wire double-layer insulation. Core insulation Outer insulation

③ American plugs generally use the certification number without directly marking the UL pattern on the plug. For example E233157 E236618, and printed on the wire.

Brief introduction of Japanese plug

Japanese plug: PSE, JET VFF 2 * 0.75mm2 -F- ①VFF: V represents the wire material PVC; FF is a single-layer insulating layer with grooved wire body; ② VCTFK: VC surface wire material PVC; TFK is a double-layer insulating layer partial line, the outer layer is mm2 layer, copper core wire; ③ VCTF: VC m...