A lot of people have to put in a plug every time they have a new one, get a new one, get a new one, get a different one, get a different one, get a different one, get a different one. Eat
I. A first master of the three core foundations (primary, safety first)
Fire, zero, ground sound awareness
Fireline l: bring work voltage
Zero line n: flow circuit, normal, no power
Groundline pe: safe lifeline, electrical metal casing
The color of the wire is only for reference. Old houses, old house electricity, rags are not standard colours and can never be determined by colour alone
It is critical to prevent faults and exposures to electrocution that fire should be distinguished from zero by means of electrocution pens。
The only thing that applies is a wall state sign slot panel, which cannot be applied to the internal end of the household electricity, power plugs, machine poles。
2. Hard safety floors line
1. Any connection shall be cut off from the total power source, which shall be confirmed by means of a pre-operational examination pen
Electromagnetic furnaces, microwave furnaces, air conditioners, transformer household electricity, with high voltage residuals in the interior following power outages, which must be discharged before the machine is opened to avoid electrocution
3. Kitchen, toilet, wet environment wired, insulated, waterproof, and bare-wire exposure prohibited
4. Groundlines can never be saved or replaced by zero-line lines, and short-range connections are strictly forbidden, and metal casings must be reliably connected
5. Non-self-replacement of the household headline, internal circuits of the meter, only household switch plugs, power lines, internal circuits heavy answer
3. Standard wiring basics, learning to formally strip and not to damage copper cores
Single hard-line, multi-soft-line regulation and interconnection, strictly inhibiting access and avoiding heat and fire
Formal processes are prioritized with pressure line ends, line noses, followed by insulation tape/heat indent seals
Copper wires and aluminium wires cannot be attached directly, are highly oxidized and require a dedicated transition。
Ii. Two tools are necessary so that you can eat everything. Electricity
1. Sensor/general electronic examination pen: detection of electrical power on the circuit, predicting hazard
Digital use table: only three basic functions — exchange voltage, cut-off, electrical resistance — need to be mastered, sufficient to screen break wires, short circuits, and metalware burning without learning complexity。
Iii. Common metaware recognition (all household appliances are generic and can be classified as useful)
(c) insurance tubes, installed electrical capacity, electrical resistance, diodes, thermostats, relays, electric appliances, heat fuses, main plate terminals。
The focus is on three points of access to electricity, load-out lines, and outer casings; the thermostats are open and closed, cannot be co-ordinated at will, and there is no heat or continuous drying。
Iv. Communication of house electronic resources (ntp)
1. Small household electricity (electrical canteens, fans, heaters, electric cooking)
(a) standard circuit: powerline feeder → switches/temperators → electrics/hot threads → zero line backway
Electrical metal casings are separated to protect the ground and separate lines are not mixed。
Laundry machines, electric water heaters
Zero-fired lines are provided with normal power, with separate access to water valves, drainage pumps, door locks and temperature control components
The whole metal shell is forced to land and the wet environment must be equipped with leaking electrical protections。
Refrigerators, air conditioning
1. Consistency with the body bearing number, provided that a distinction is made between strong power lines and weak power lines
2. Signal lines may not be used as power lines, which directly burn down the main plate
3. The internal and external air conditioners are connected strictly by their signage and the fire cannot be reversed。
Lights, baths, smoke machines
Common lamps, leds and smart remote-controlled lamps must distinguish strictly between zero lines
Zero-firing will be eliminated, otherwise there will be light off, a leak in the fuselage, a burning of the driver, a significantly shorter lifetime of the lamp; a clear end of the input, an output end, and a regular connection。
V. Line square
1. General plugs, small household electricity, lighting: 2. 5 square-square-square-state copper line sufficient
2. 5 air conditioners up to the following, general water storage water heaters: 2. 5 square national copper line
3. Three or more cabinets, i. E. Thermal water heaters, ovens, high power appliances: separate 4 square copper lines + independent air switches。
