How to solve the harm of too dry indoor air
Hawthorn indoor air is dry, and the water loss rate in the body will be accelerated. To solve this problem, eating some Hawthorn appropriately can achieve very good results. It can improve appetite, help digestion, reduce blood lipids, activate blood vessels, supplement the water needed by the body and make the body metabolism faster. Apples are rich in nutrients, which can make the skin more lubricated. Eating more apples when the indoor air is dry can keep the skin moist. Banana indoor air is dry, you can eat some bananas appropriately, and it is rich in potassium, so it can maintain better skin health, effectively solve the skin problems caused by drying, and discharge the stool more quickly. The sour and sweet taste of grapefruit grapefruit is very good, and it can clean up the intestines and moisten the lungs. It can make the food digestion faster. The effect of relieving cough and resolving phlegm is very good, and it can also improve the appetite.
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(1) Before testing, remove the resistance of the tested power cable and all outbound wires, ground them and discharge them. The discharge time should not be less than 1min, and the power cables with larger capacity should not be less than 2min to ensure safety and accurate test results. .
(b) Use a dry, clean, soft, soft cloth to remove dirt from the end caps or wires and the insulation surfaces of power cables to reduce surface leakage.
(3) Place the oscillating table in a stable horizontal position to avoid unsteady shaking of the table during operation, resulting in inaccurate readings.
(d) Under no-load conditions, rotate the oscillating table to the rated speed (120 r/min) and adjust the pointer to "∞".
(v) For multi-core power cables, the insulation resistance of each phase core should be tested separately. At this time, the lead wire to be tested is connected to the connection terminal (L) of the oscillating meter, and the other core wire is shorted to the ground (lead packet) and then connected to the grounding terminal (E) of the oscillating meter. In order to avoid the influence of the leakage current on the insulation surface of the power cable, a rocking screen should be used to knock the wall (G) to fully break the surface insulation beyond the instructions of the rocking table. For power cables that have not yet been laid, install a protection ring around the insulation of the core of the core to be tested, and connect the two protection rings to the shield terminals (G) of the oscillating meter, as shown in Figure 8-2. For the already installed power cable, a metal soft wire can be used to wrap the protection ring on the sleeve or insulation at both ends of the core to be tested, and the protection rings at both ends can be connected to the rocking shielding terminal, and another power cable can be used. The core acts as a shielded loop, as shown in Figure 8-3.
(f) Rotate the rocker handle at a constant speed (at 120r/min, the pointer gradually rises, record the insulation resistance value after 1min. The reason for this is that considering that there are three kinds of insulation decay with time. The current, in theory, should be such that after all three currents have been attenuated, the value of the conducting current (ie, the leakage current) is read out to calculate the insulation resistance, but due to the long time, the workload of the section test is large and the test is taken into consideration. Because of the stability of the system, it is clearly stated in the standards of the test method that the readings are reaching one minute after the current is switched on.This provision ensures that most of the non-conducting currents have disappeared and the test time has been unified. , Make the readings repeatable and comparable, while improving the test efficiency.
(7) When the insulation of the power cable is also obstructed or measurement is required, the power cable under test must be grounded and discharged for at least two minutes.
(h) Since the insulation of the power cable line is also affected by many external conditions, it is important to fill in the inscription or table plum in the test to facilitate the analysis of the test results.
It should also be pointed out that the insulation resistance of the L-lead wire of the oscillating meter is in parallel with the insulation resistance of the power cable, so the insulation resistance of the wire is required to be high, and should not be dragged on the ground, and should not be connected with the E-terminal lead, such as When the leads must be connected via other supports and power cable cores, the support must be well insulated or it will affect the accuracy of the measurement. In the test process, the speed of the oscillating table should be kept as much as possible and the uniform speed should be maintained. The speed of rotation should not be less than 80% of the speed of the front stern.
If the indoor air is too dry, it will make people feel very uncomfortable. It will not only affect skin health, but also have a certain impact on visceral health. Therefore, when you feel that the indoor air is dry, you must find a way to solve it in time. How to solve the indoor air drying?
If the indoor air is dry, you can put some plants. You should choose tiger tail orchid, aloe or Chlorophytum, which can release oxygen at night. Don't put too much in the bedroom. You can sprinkle some water on the leaves of plants. In order to solve the problem of indoor air drying, you can put a basin of water in the room, cover a wet towel on the radiator, or put a basin of water in the room, and you can also drag the floor with a mop to make the ground moist. In this way, you can solve the problem of too dry air, and this method is relatively healthy, There will be no harm. If the indoor air is too dry when using the humidifier, you can also use the humidifier Aroma Diffuser. This is a relatively simple method. You can put pure water or cool it in the humidifier. It should be replaced every day. It should be cleaned after about two weeks of use. Do not add essential oil or bactericide indiscriminately in the humidifier. After entering the body, On the contrary, it will have an adverse impact on health, which is easy to cause bronchitis and lung diseases. Indoor drying of wet clothes to solve the problem of air drying, you can dry wet clothes indoors, which can also increase the humidity. If some clothes are not in a hurry, don't dry or dry them directly. Put them indoors and let them dry naturally, so that the humidity in the house can be improved a lot.
Indoor air drying is harmful. There are many air drying bacteria, which are easy to have a great impact on the respiratory system. Moreover, the water loss in the body becomes faster, and the speed of skin aging will naturally become faster, so wrinkles will appear on the face.
What fruit do you eat when the air is dry
How to Measure Insulation Resistance Correctly Using a Megaohmmeter
How to use Megohmmeter correctly Measure insulation resistance Measure the insulation resistance with a megohmmeter. Pay attention to the following points: