What are the considerations when buying a vacuum cleaner? 1. Shell work: This is one of the main aspects of selection, there is a well-designed, close-structured shell, not visual, quality will also be a reliable feeling with people. The painting of the shell should not buy painted products. This is caused by poor businesses in order to save money. There is also a good performance of the filter should be a large mesh and fine mesh double-layer network; power check, good quality product start speed should not exceed 1 second, hand touch up the chassis amplitude is small, noise is low, broken The deceleration time after electricity should be longer than 5 seconds and then stopped. The stop process is smooth and even.
2. Power check suction: After power on, there will be suction sound. When the vacuum cleaner mouth is blocked by hand, the noise of the motor is obviously increased. At this time, the hand feels a huge suction force. When the hand is removed, it will be very laborious.
3. Look at the wattage: In general, the higher the wattage, the stronger the suction. A household vacuum cleaner 1000W is enough.
4. Listen to the sound: After the vacuum cleaner is energized, only the sound of the wind should be heard. The sound of the whole machine should be as small as possible and should not be mixed with other noises. Some vacuum cleaners are equipped with a power recovery device, and the power cord must be pulled out when selected. Then press the take-up switch to see if it will fully retract the power cord. Finally, according to the instruction manual, take a look at the accessories of the vacuum cleaner, and do not have missing parts.
5. In terms of action, a mobile vacuum cleaner will give us great convenience in the future.
6. Speed ​​control function: can follow our needs to adjust the power of the machine to meet the type of work that suits our needs, and just start the head, use the minimum number of turns to boot, help to protect the head.
Medium Voltage STA Armored Cable
Medium voltage STA cable is a type of Power Cable used for transmitting electricity at medium voltage levels. The armored cable is designed with a steel tape armor layer that provides mechanical protection to the cable against external forces, such as impact, crushing, and abrasion. The armor layer also provides protection against rodents and other animals that may damage the cable.
The medium voltage STA cable is typically used for underground and overhead installations in industrial, commercial, and residential applications. It is suitable for use in harsh environments, including areas with high humidity, corrosive gases, and high temperatures.
The cable is constructed with a copper or aluminum conductor, insulated with XLPE or EPR material. The insulation provides electrical insulation and protects the conductor against moisture and other environmental factors.
The steel tape armor layer is applied over the insulation layer and provides mechanical protection to the cable. It is made of galvanized steel and provides excellent resistance to corrosion.
The medium voltage STA cable is available in various sizes, ranging from 3.3 kV to 33 kV. It is manufactured in compliance with international standards, such as IEC, BS, and ASTM. The cable is tested for quality and safety before it is supplied to customers.
In summary, the medium voltage STA armored cable is a reliable and durable power cable used for transmitting electricity at medium voltage levels. It is suitable for use in harsh environments and provides mechanical and electrical protection to the cable.
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