![]() ![]() Also, the ground prong will be longer than the neutral and hot prongs so that the device is grounded before it ever becomes " hot" or "live. However, the grounding wire is directly connected to the casing of the device and will neutralize the risk of shock by diverting current to the ground, which will trip the circuit breaker, and stop the current flow to the device. Before attempting this project, be sure to review the wiring diagram that came with your device and turn off the power to the wall outlet at the breaker box. With a few simple tools and a bit of knowledge, anyone can wire a standard plug safely and securely. If a hot wire in the internal circuitry of an electronic device frayed or somehow came into contact with a metallic casing, the entire device would then become a serious shock hazard. Wiring a 120 volt plug might seem like a daunting task, but it doesn’t have to be. The grounding slot is important for devices with a metallic casing or metal-cased power supply, like computers. Contractor says as long as wire gauge is enough for the amperage, it should be fine. The grounding wire is connected much like the neutral, as it also connects to a grounded neutral tie block. Installing a new heat pump with a contractor and he said he can convert a 120v outlet to 240v outlet on site without bringing new wires from electrical panel, heat pump specs is attached and it has a 5 amps circuit and 15 amps overcurrent protection. Most modern sockets in North America have a grounding slot in addition to the hot and neutral(see figure 3). In a non-polarized plug, the switch may only open the circuit at the neutral lead, which means that most of the internal circuitry of the device is still considered "hot" and can lead to shock hazards. A 120-volt circuit is most commonly black. The benefit of polarization is that polarized plugs can only be inserted in one orientation, so the switch to turn any device connected to the socket on or off can be built into the hot lead. The outlet has 120 volts between the hots (red/x or black/y) and the neutral (white/w) and 240 between the two hot wires. The 240 circuit has four wires as follows: black (hot), red (hot), white (common aka neutral), green or bare (ground). Of course, to complete the circuit all the way back to the generator, the neutral is also connected back to the original distribution system in addition to being grounded at multiple locations. Instead, the hot slot supplies the voltage required to draw current, and when a plug is inserted into the socket, the energy flows in from the hot slot, through the circuit, and ends at the neutral, which disperses the energy into the ground. The neutral is connected by a wire to ground, so its voltage is 0 V. ![]() In North America, this is accomplished by having two differently sized slots in addition to the rounded grounding slot, the larger of which is called the neutral line, and the smaller called the hot line (see figure 2). Polarized plugs can only be inserted into them one way (which seems annoying, but is actually an important safety feature). A labelled diagram of a polarized two-pronged outlet. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |