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目前显示的是 十月, 2022的博文

Everything You Need to Know about Deep Cycle Battery

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Before we dive into   what is a deep cycle battery , it is first important to understand a few battery basics of what a cycle is, what depth of discharge means, and what it really means to deep discharge a battery. One full cycle is considered a full discharge and recharge of a battery. What is meant by a full discharge? Discharge is measured by the capacity removed from the battery – the depth of the discharge (DoD) is used to indicate how much of the battery capacity has been used during a single discharge. A full discharge is 100% DoD. What is a Deep Cycle Battery? This answer may seem obvious, but a deep cycle battery is a battery that has been designed to continuously handle deep discharges of 80-100% DoD. Does this mean high-rate batteries can’t be used for a deep discharge? Yes and no. One or two deep cycles will not hurt the battery (if maximum discharge and charge rates are strictly adhered to), but this is where the design of the battery matters because a high-rate battery wo

Advantages and disadvantages of Vacuum Circuit Breaker

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A circuit breaker  is a switching device that can be operated manually or automatically for controlling and protecting the electrical power system. Vacuum Circuit Breakers use vacuum as the interrupting medium due to its high dielectric and diffusive properties. Read this new blog in Linquip to know more about this type of circuit breaker and Its applications. What is Vacuum Circuit Breakers? Vacuum circuit breakers  are compactly designed for safe operation, high reliability, and easy maintenance, and find a use for various types of high voltage circuits. They interrupt an electric circuit to prevent unwarranted current, caused by a short-circuit, typically resulting from an overload. There are mainly five types of circuit breakers, generally used as protective equipment of high voltage system: Oil Circuit breaker (OCB) Minimum Oil Circuit breaker (MOCB) Vacuum Circuit Breaker (VCB) SF6 Circuit Breaker Air Circuit Breaker (ACB) Vacuum Circuit Breaker Operation It is an electrically op

Surge Arrester vs Lightning Arrester: Which One to Choose

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    Different terms used for  arresters  are sometimes confusing even professional engineers and electricians use them interchangeably. Now let’s discuss all these arresters in details.   Table of Contents   What is a Surge Arrester? What is a Lightning Arrester? Main Differences between Surge Arrester and Lightning Arrester Should You Use Surge Arresters or Lightning Arresters?   Surge Arrester   1. The  surge arrester  will be installed nearer to the equipment to be protected and the transmission tower line enter in to the substation point. 2. It protects against high voltage transient (example: lightning strike on the transmission conductor) typically, it is indirect protection of lightning strikes. 3. It should be installed each phase of the circuit. i.e if you have 2 parallel switch yard then you should install 6 number of surge arrester (first run 3 phase and second run 3 phase) . Lightning arresters   1. The lighting arrester is doing the exact duty of surge arrester from outsid

How Do I Choose the Right PPGI Steel Coil?

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  Prepainted galvanized steel coil  is a kind of colour coated steel coil (PPGI coil). It uses galvanised steel as the base metal. The zinc layer is highly resistant to corrosion. Together with the coating, it is more durable than galvanised steel. The metal coated steel then undergoes a number of cleaning procedures, pre-treatment solutions and finally a multi-layer organic coating including laminates, vinyl dispersions and paint. This continuous technique of applying different coatings is known as coil coating. As a result, the steel coil is used in the finished product without the need for painting or finishing.   PrePainted Galvanized Steel Coil (PPGI) and Pre-Painted Galvalume Steel Coil (PPGL) is a kind of building materials, with galvanized sheet and aluzinc sheet as the substrate, after pretreatment (degrease and chemical treatment) and liquid dope with several layers of color, then firing and cooling, finally the palte steel is called pre-painted  galvanized steel coil  (PPGI)

How To Build A Gabion Retaining Wall?

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The limits of height you can build a gabion rock retaining is really only limited to your needs.   Gabion baskets  can be used to divide or step gardens by as little as 300mm or can be used to build a side of a house. It all comes down to stability and above a certain height, engineering approval. Find out more detail on considerations of how high you can build a retaining wall here.   Here are 4 common approaches to think about when determining the height of your rock retaining wall: 1. Add additional baskets to increase the depth of the wall.   This increases the surface area of the base of the wall on the ground which reduces the opportunity for the wall to sway or collapse. The recommended ratio is 2 baskets high to every 1 basket deep. Gabion Basket 2. Install support posts.  Support posts help add stability to your wall to also reduce the risk of collapse. They need to be strong enough to properly support the gabions and should be secured in a concrete slab underneath the basket

What is the difference between SFP、SFP+、QSFP?

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  SFP, SFP+ or QSFP are all types of transceivers used to connect a switch or other network device to copper or fibre cable. They are most commonly used to add fibre ports. Which   SFP transceiver   you choose depends on the cable type, application, required optical range for the network and the desired data transmission rate. What is an SFP? An  SFP , or small form factor pluggable, is a compact, hot-swappable transceiver designed to support 100/1000Mbps Ethernet, Fibre Channel and SONET, among other communication standards. SFP transceivers support speeds up to 4.25Gbps and are commonly used in telecommunications and data communications applications. SFP ports are found in a range of devices, from Ethernet switches to routers, NIC cards and firewalls. Small form factor pluggable specification is based on IEEE802.3 and SFF-8472. SFP vs SFP+ SFP and SFP+ transceivers are virtually identical in size and appearance. The primary difference is that SFP+ is an updated version that supports

The Development History of Fire Engines

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    Fire engines , as special vehicles used by fire services to fight fires and rescue people, are always there to protect people. However, few people know the history of fire engines. Do you know the story of the world's first fire engine?   The first fire engines in the world. The world's first recorded fire engine was built in 1518 on commission from the city of Augsburg, Germany, by the craftsman Antney Blattner, who made metalwork. Very little is known about the details of this fire engine. According to the book "History of Craftsmanship in the City of Augsburg", the fire engine was formed by mounting a large water pump operated by a lever on the vehicle. Its power was then drawn by horses.     The continuous development of  fire engines . In 1666, a fire broke out in London, England, which burned for four days, destroying 1,300 houses including the famous St Paul's Church, and some medieval buildings were swept away in the fire. People began to take firefigh

What are Types Of Disposable Cups?

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Disposable cups is widely used & be a very important role in our life. Sometimes in the places that people are crowded, we use disposable cups. Because it can avoid the spread of disease. it will be more safety. When we drink water or coffee, we can use it directly and we can throw it into dustbin without extra clean, so you can see it’s extremely convenient. This page will have a detailed & professional introduction of different  types of disposable cup .   What Are Disposable Cups Disposable cup is one of food packaging. It’s a small container for drinking or food. but it has very limited number of use and normally for single use. There are many types for disposable cups. it’s depends on what standard that we choose.   Types Of Disposable Cup There are many different categories for disposable cups on the market, Because the basis of classification are different, the catalog will be different. For example, if you take usage as the basis, it can be divided into cold drink cup,