Yantai City CDC experts said that noise is usually a chronic sound injury to the auditory system, and tinnitus is often a precursor to noise deafness. People who have been exposed to noise for a long time usually have binaural persistence before deafness occurs. High-profile tinnitus. Noise can not only damage the hearing, but also harm the non-auditory system of the ear, cause dizziness, and damage other systems other than the ear, such as affecting mental, psychological and behavioral factors, which can cause dizziness, headache, palpitation, irritability, anxiety, Insomnia, tinnitus and other neurasthenia manifestations. At the same time, noise also affects the cardiovascular and digestive systems, which can lead to increased blood pressure, nausea, and decreased immunity. In order to avoid noise damage to young people's hearing, Yantai City CDC experts reminded that the volume should be adjusted indoors, and the volume can be set to the extent that you can just hear it clearly. For the headset, the volume should be adjusted to be able to listen to the surrounding dialogue; for the in-ear headphones, you can remove one of the headphones, adjust the volume of the other side to be similar to the volume of the conversation, and need to increase the height. When the volume is up, it is best not to exceed 60% of the maximum volume. In addition, experts pointed out that when the surrounding environment is noisy, the volume is turned higher and difficult to hear, you should decisively turn off the headphones, if you want to listen to songs in this high-decibel noise environment, you may wish to switch to the ear Or headphones that have better shielding effect from outside noise; do not use headphones for a long time. Generally speaking, do not use headphones for more than 2-3 hours a day. Sleeping with headphones is a bad habit to avoid. . Dropout Fuse Cutout and load drop fuse cutout are outdoor used high-voltage protective devices. They are connected with the main lines of the distribution transformer or the distribution wires to protect the transformer or wires from short circuit and overload, and on/off loading current. Dropout fuse cutout consists of insulating bracket and fuse tube. The static contacts are fixed on the two ends of bracket, while the moving contacts are fixed on the two ends of fuse tube. Fuse tube is composed of inner extinction tube and the outer epoxy glass tube. The load drop fuse cutout is added with elastic supporting contacts and arcing shield for switching on-off loading current. In normal operation, the fuse tube will form an enclosure via its tightened fuse link. The fuse will be melt off quickly and form an arc if there is any fault, the extinction tube is heated by the arc, exploding much gas to give high pressure into the tube and blow along with the tube, so the arc is quickly elongated and extinguished. When the fuse is cut off, moving contacts at the bottom turn down without tension; the locking frame will release the fuse, so the fuse drops to form obvious break. When it needs to put load on, start the contact with insulating cod, then the static and moving contacts are still keeping in touch, keep pulling the contacts till the supporting contacts apart. Then there is the arc among the supporting contacts, which is prolonged in the narrow space of arcing shield.At the same time, the arc extinguishing cover generates gas, and the arc is extinguished when the current exceeds zero. Porcelain Fuse Cutout,Drop Fuse Cutout,Fuse Link Cut Out,Cutout Fuse Holder Jilin Nengxing Electrical Equipment Co. Ltd. , https://www.nengxingelectric.com