Q:What is the meaning of the second and third socket?

Five-hole socket need to use wires to connect two sockets, but also within the socket has been connected only three lines can be connected to the use of the socket are the same phase: the face of the socket, left and right on the ground

Q:We use the power outlet are mostly single-phase three-wire socket or single-phase two-wire socket

Three plugs are positive three-shaped arrangement, which the longest and thickest copper plug is the ground (Earth wire), the ground has a special grounding symbol.

Q:What is the difference between the concealed socket and the socket?

the difference between the two main box in the installation. Pay attention to the safety of the line on it.

Q:Indoor socket generally have several?

so should set the power outlet. The power outlet should be powered by an independent branch and the leakage protector should be installed on the socket slip.

Q:(Red, yellow, blue), zero line-N (blue or black), ground-E (yellow-green)

Single-phase three-wire socket, the middle of the ground wire, but also for positioning, the other ends were connected to the line and the zero line, the wiring

Q:Explosion-proof socket and the difference between ordinary socket

explosion-proof socket panel and the latch shell made of cast aluminum alloy, the surface by the spray treatment, not

Q:According to the function can be divided into:

Class II: electrical insulation with double insulation measures, to increase the leakage protector

Q:Provide the most commonly used wiring method for socket plugs

Called the zero line is the reason for the three-phase balance of the neutral line without the current through, and then it is directly or indirectly connected to the earth, with the earth voltage is close to zero.

Q:Why can not the plug plug the socket?

if not, it may be inside the clip bending and even block the plug into the insert.

Q:Three-wire socket with three-wire plug how ah?

Zero, just fire and zero can be separated, because the electrical plug on the two holes, you do not have a fixed interpolation, not casually inserted, as long as the socket fire and zero can be separated