To obtain 1 liter of solution, add water to 100 mmol/l, 200 mmol/l and 300 mmol/l sodium chloride solution until the total volume reaches 1 liter. Stir thoroughly using a magnetic stirrer until the sodium chloride is completely dissolved. The live line, English abbreviation l (live), is generally red or yellow or green, and the neutral line, English abbreviation n (neutral), is generally blue. Neutral live wire refers specifically to: civil power supply lines. The AC power supply voltage of the city power is 220 volts (v) (not. In the AC power supply, l-n means between the phase line and the neutral line, and l-l means between the phase line and the phase line. When the three-phase AC power supply is connected in star connection, the neutral line is also called the neutral line, represented by the letter n, and the phase line is represented by the letter l. Voltage l-n is between phase and zero.
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