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How to maintain the low-voltage explosion-proof circuit breaker after frequent use?
All kinds of electrical appliances have an end of life, which is what we often say, such as the lighting switch we talk about his number of switches, the battery we say it cycles the number of times or the number of discharges, if there is not one in a good product with science The effective maintenance, its service life will also be greatly reduced, which is why there are a lot of users how to respond to how long it has not been on a variety of small problems, the following talk about how to check and maintain:
1 Check for dust and defects on the outside. Dust regularly to keep the circuit breaker clean.
2 Check if the load exceeds the rating of the circuit breaker.
3 Check the contact wires of the contacts for overheating.
4 Check that the fixing bolts are tight.
5 check, check the tripping set value is correct; check whether the thermal element is damaged, the gap is normal.
6 Check whether there are any deformations, rusts, and defects in the connecting rods, pins, and springs of the operating mechanism, and whether the operation is flexible. 7 Check whether the indicators of the minute and closing status are correct.
8 Monitor the automatic switch with or without abnormal sound during operation.
9 Open the casing Check if the position of the arc extinguishing cover moves due to vibration. Whether the arc cover is damp or burned by the arc. The damped arc extinguishing cover should be dried. When there are smoke marks and metal frit on the surface, you can use a knife or Fine repair and scraping; If arc extinction grid burning serious or arc shattered, should be replaced immediately, so as not to cause phase short circuit accidents.
10 Check whether the surface of the electromagnet has oil stains, dust, whether the coil is overheated and scorched, and whether the spring has rust marks.
Dining chair is a common seat in restaurants, bars, cafes and other places for people to use when dining. According to different design styles, materials, functions and uses, dining chairs can be divided into a variety of categories. The following will be a brief introduction to the product classification of dining chairs.
First, according to the design style classification
1. Simple modern style: Simple modern style dining chairs usually use simple lines and Outlines, focusing on functionality and practicality, suitable for modern restaurants and cafes.
2. European classical style: European classical style dining chairs pay attention to gorgeous details and decoration, common hollow carving design and curve shape, suitable for high-end restaurants and banquet places.
3. Nordic style: Nordic style dining chairs focus on simple, natural and comfortable design, usually using wood materials and simple lines, suitable for family restaurants and cafes.
4. Industrial style: Industrial style dining chairs often use metal materials, with simple, solid and practical characteristics, simple and unadorned, suitable for cafes and bars and other places.
Second, according to the material classification
1. Wooden dining chair: Wooden dining chair is usually made of solid wood or artificial wood, with natural, environmental protection and warm characteristics, suitable for families and cafes and other places.
2. Metal dining chair: Metal dining chair is often made of metal materials such as iron, aluminum or stainless steel, with strong, durable and easy to clean characteristics, suitable for bars and cafes and other places.
3. Plastic dining chair: Plastic dining chair is usually made of polypropylene or polycarbonate and other plastic materials, with light, waterproof and easy to clean characteristics, suitable for fast food restaurants and school cafeterias and other places.
Third, according to the use of classification
Generally, it can be divided into two uses: domestic and commercial.
1. Home dining chair: Home dining chair pays attention to comfort and beauty, common dining table chair, folding chair and bar chair.
2. Commercial dining chairs: Commercial dining chairs pay attention to durability and practicality, common bar chairs, cafe chairs and fast food restaurant chairs.
In general: dining chair as one of the important furniture in restaurants, bars, cafes and other places, according to the design style, material and use of different, can be divided into a variety of categories. Choosing a dining chair that suits your place and needs can enhance the comfort and beauty of the dining environment.
Cafe chair,wholesale chair,stackable chair,connected chair
Foshan Shengshi Zhihui Technology Co., Ltd. , https://www.officer-furniture.com