The AC power lightning protection module is suitable for power supply protection in power distribution rooms, power distribution cabinets, switch cabinets, AC/DC power distribution panels, communications, electronics, power, networks, energy, railways, highways, etc. · Outdoor input in buildings Distribution box, building layer distribution box; · for low voltage (220/380VAC) industrial power grid and civil power grid; · signal lightning arrester for line intrusion overvoltage protection; lightning rod for direct lightning protection; Mainly used for the three-phase power input or output in the power supply screen of the main control room of the automation machine room and substation.
Outdoor lightning protection should pay attention to the following 5 points:
1. Don't stay on top of the mountain, ridge or building.
2. Do not stay near iron gates, iron fences, metal clothes ropes, overhead metal bodies, and railway tracks.
3, should quickly fall into the building (structure) with lightning protection, or a variety of vehicles and ships with metal casings. If you do not have the above conditions, you should immediately close your feet and bend your head forward to lower your height to reduce the risk of step voltage. Because the lightning current will gradually release energy along the ground through the falling point. At this time, between the forefoot and the hind foot of the person walking, a certain voltage may be generated between the two steps due to the difference in potential difference.
4, don't be in the big tree (in the wild, you can also rely on tall trees to protect against lightning, but remember to leave the trunk and leaves at least two meters away.), telephone poles, billboards, all kinds of towers under the rain . Because at this time, the damp branches of the big tree are equivalent to a lightning-leading device. If you touch the big tree, the electric pole, and the various types of towers by hand, as if holding the lightning protection device to lead the line, it is likely to be struck by lightning.
5, do not stay at the water (river, river, lake, sea, pond, canal, etc.), swimming pool, squatting, to quickly go to the nearby dry housing to avoid thunderstorms.
Grain Dryer
With the improvement of grain varieties, the increase in yield and the increase in national investment in grain drying equipment, more and more large, medium and small grain drying facilities are being built. It is very important to choose a dryer with high quality, long service life, economical and practical, good reliability and high degree of automation.
Principle: The hot air drying box adopts a rotary heating device, which can generate a large amount of hot air in a short time. It can kill insect eggs through high temperature treatment and completely solve the discoloration phenomenon in the drying process. The drying box uses metal aluminum Inner wall board, silicone wool insulation, corrugated color steel plate or aluminum alloy outer wall board. Digital control and detection are adopted in the box to make the air circulation and humidification and heating effectively controlled.
1. The use of a unique inside curtain cold trap, the structure is simple and practical.
2. The working temperature of the cold trap is ≤40℃ (optionally ≤60℃, ≤88℃).
3. Refrigeration system adopts famous brand compressor, which has large cooling capacity and low energy consumption.
4. Vacuum series is safe and reliable, and the working vacuum is high.
5. The heating and drying process is automatically controlled, the heating temperature fluctuation is small, and the control is accurate.
6. The moisture content of the product can be as low as 1 to 3%, while maintaining the original color, aroma, taste and nutritional ingredients, and has a long shelf life.
Mixed Grain Dryer,Grain Wheat Dryer,Grain Rice Dryer,Grain Dryer Machine
JINFENG DRYING EQUIPMENT CO.,LTD , https://www.jf-graindry.com