What does the lamp ln mean?
1. L is “hot wire” (that is, Live Wire) N is “zero line” (Naught wire). In general, red, yellow and blue colors are used to represent three hot lines in three-phase circuit, and black is used for zero line. In the single-phase lighting circuit, the general yellow represents the hot wire, the blue is zero, and the yellow and green is the ground wire.
2. Red, yellow and green shall be used for hot wire (L), and black and blue shall be used for zero line (N). Install a leakage circuit breaker on the bus and connect it with a light bulb to the hot wire and zero wire or to the hot wire and ground wire, such as the action of the leakage circuit breaker indicates that it is a ground wire, otherwise it is a zero wire. If you turn on the electricity and test it with a pen, it will be full of hot lines.
3. The input power supply of the lamp strip on the power supply board. The LN of the power board lamp strip is two letters, L and NMagi L is the hot line, N is the zero line, the hot line and the zero line: the two power lines in the single-phase circuit, one is called the fire line (scientific name phase line), the other is called the zero line scientific name neutral line.
4. LN means hot wire and zero wire. The two terminals marked L and N on the power supply are connected to the hot wire zero wire of Municipal Power, and the ground wire of Gnd is marked.
5. L represents the line of fire, and N represents the zero line. There are two wires in the lighting circuit, one is called Fire Wire, the other is called Zero Wire. The difference between a hot wire and a zero wire is that their voltage to the ground is different: the voltage from the hot line to the ground is 220V; the voltage from the zero line to the ground is equal to zero (it itself is connected to the earth).
Installation method of led flat Lamp
1, embedded installation method: suitable for integrated ceiling installation, this installation method is often used in offices, stores, kitchen rooms and other occasions, but also the most common installation method, first remove a ceiling, put the driver of LED panel lights on the next ceiling, and then connect the power cord, and then put the board lights above, the installation method is relatively simple.
2, embedded installation: first remove one of the ceilings, then put the driver of the led panel lamp in the surrounding ceiling, then connect the power cord, and finally embed the led panel lamp into the hole.
3. There are three installation methods of LED flat panel lamp: embedded, ceiling and hanging, so we should first determine what kind of installation method. Prepare sharp-nosed pliers, solder, AB glue, multimeter, etc.
What do the l and n on the led constant current drive represent?
1. LED lamps and lanterns have no ballast, only drive power supply. L is the line of fire and N is the zero line.
2, L and N represent the hot line (AC 220V) and zero line, respectively. If there is a test pen, the live one is the hot wire, and the other is the zero wire. When wiring, pay attention to string the switch of the lamp on the hot wire (L), otherwise it may cause the LED to flicker after turning off the light.
3. The positive and negative poles should be denoted by the +, -, sign, L and N represent the hot wire and zero line of the power supply, respectively.
4. In the electrical circuit, the letter L represents the hot line (phase line) and N represents the zero line (neutral line). Fire wire (sign letter L Live Wire), zero line (sign letter N Naught wire), ground wire (sign letter E Earth Wire).
5. In the circuit, n represents the zero line and l generation represents the surface fire line. Therefore, when connecting the circuit, we should pay attention to distinguish between the hot wire and the zero line to avoid the wrong installation of the point circuit and the problems of electric shock and short circuit in the circuit. In addition, if the zero line is charged, it may not be well grounded.
On the wiring diagram of the led lamp circuit board, the R 1 Magi R 2 Magi R 3 Magi C 1, D 1, L, and N represent respectively.
1. C1 is the power filter capacitor, which also plays a role in DC current to provide a loop for AC signal.
2. R2 is the transistor base bias resistance, and the current of R2 is the base static current. The appropriate resistance value is selected according to the needs of the circuit and the designed base current. Resistance = (supply voltage-0.65V) / base current the base current is determined by the β of the transistor and the designed collector current.
3. R is the resistance, C is the capacitor, D is the diode, Q is the transistor, U is the integrated circuit, L is the wire or coil, T is the transformer, followed by the number on the circuit board.
4, R39 R50 R63 these three together, must refer to the model of the lamp. R represents the R lamp, and the number after it indicates the radius of one size on the lamp. The answers of the first few guys are too misleading.
5, in the section, look for the user manual, in which all the interfaces of the motherboard will be described and introduced in detail. The main connection between the motherboard and the chassis is shown below. Power led is the power indicator, Power WS is the power on key, H.D.D.LED is the hard drive indicator, and RESET SW is the restart button.
6. You can find the user manual in the section of “Asustek official website”-“Service and support”. In the manual, all interfaces of the motherboard will be described and introduced in detail. The main connection between the motherboard and the chassis is shown below.
What are l and n at the connection of led lights?
L and N stand for hot line (AC 220V) and zero line, respectively. If there is a test pen, the live one is the hot wire, and the other is the zero wire. When wiring, pay attention to string the switch of the lamp on the hot wire (L), otherwise it may cause the LED to flicker after turning off the light.
L, N refers to 220V AC fire, zero two lines, is the power input.
The lamp ln is two letters, L and NMagel L represent the line of fire, and N represents the zero line. Lamp tube usually refers to straight tube fluorescent lamp, due to the particularity of vocabulary, now refers to the appearance of long tube lamps and lanterns. Lamp tube, or fluorescent lamp, fluorescent tube, fluorescent lamp, is a kind of lighting device, which belongs to a kind of arc lamp.
LED lamps and lanterns have no ballast, only drive power. L is the line of fire and N is the zero line.
The positive and negative poles should be denoted by the +, -, sign, L and N represent the hot wire and zero line of the power supply, respectively.
