Shape of power cord plug
2 core power supply plug: 2 core power supply plug as the name implies is the plug has two inserts or two pins, specific inserts or pins, each national standard is not the same, such as China is two inserts, Europe is two round needles.
3 - core power plug: 3 - core power plug as the name implies that the plug has three pins or three pins or two pins or two pins plus a ground hole. Such a structure is more complex than a 2-core power plug, the size and diameter of the pin standards are very large requirements, length and the distance between the pin are considered factors.
Multi-core power plug: this multi-core power plug is more complex, what 4-core power plug, 5-core power plug what, according to customer requirements, use in which specific equipment should be considered according to the reality.
