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Emergency battery packs  provide emergency lighting if a power failure occurs. Customers are always confused about battery selection and setting up emergency light solution. A vast majority of emergency backup power kits that we sell come with standard functions and specifications are rechargeable batteries. These rechargeable batteries fall into three categories (NiCd, NiMH, Lithium), and we are often asked to explain the difference and how to choose a suitable  battery for emergency lights . Here are the major differences between the three categories: Nickel Cadmium (NiCd) Batteries  are currently one of the most reliable and high safety chemistries in the market. NiCd batteries give more watt-hours of operation per shift as compared to other battery chemistries. They are ideal for a user who needs high-performance battery with high safety and long lifetime and for usage under extreme conditions of cold and heat (-20C to +50C) Nickel Metal Hydride (NiMH) Batteries ...

Concrete Batching Plants  are used for manufacturing of high-quality concrete in a variety of construction applications, like buildings, roads, bridges, airports and many others.  Advantages of concrete batching plants Preparing ready  mix concrete  on the construction site is a time-consuming process. You can eliminate your construction cost by using a batching plant for your project. Each load of concrete is produced on-site. The production and delivery are done in minutes when we use a concrete batching plant. Adjust your concrete production as per the requirements and get the most out of it. There are several benefits that the concrete batching plant has to offer to construction workers: ● Mixing raw materials with stable, advanced production technology, using computer control, accurate measurement, testing means complete, stable and reliable quality, rich high strength, thus greatly improving the construction quality level building (structure). ● ...

  Kraft paper bags have always been very popular in the packaging industry. Whether it is electronic products or food packaging, kraft paper bags are widely used. Now, many well-known companies have begun to use kraft paper bags, including KFC, McDonald's, and other well-known companies. Of course, the application field of kraft paper bags is far more than that. What we often see is the application of kraft paper bags in the clothing industry and the food industry. Now with the rise of electronic products, most electronic products such as mobile phones, cameras, routers and so on are selected and launched, and the packaging of these products basically uses kraft paper bags. The use of kraft paper to make kraft paper bags has become more and more widely used. When shopping in supermarkets, shopping malls, shoe stores, clothing stores and other places, kraft paper bags are generally available, which is convenient for customers to carry the purchased items. Kraft paper bag is an envir...

  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 doi...

Redispersible polymer powder   is a powder dispersion formed by spray drying of modified polymer EVA/VAE emulsion. It has good dispersibility. It can still be re-emulsified into a stable polymer emulsion after adding water. Its chemical properties are exactly the same as the initial lotion. Therefore, in order to make it possible to produce high-quality dry mixed mortar and improve the performance of mortar, today we will talk about the applications of Redispersed  polymer powder . Redispersible polymer powder is an essential functional admixture for  dry mix mortar , which can improve the high performance of mortar, the bonding strength of mortar and various substrates, the flexibility, tensile strength, compressive strength, bending strength, wear resistance, toughness, adhesion, water holding capacity and processability.   Masonry mortar and plaster RDP provides a mortar with good impermeability, high water retention and frost resistance and high bo...

  Nowadays, business is becoming more and more difficult, especially in the   eyeglasses   industry, because the probability of repeated consumption is very low, giving people the feeling that a pair of glasses is not used to bad, basically will not be replaced by a new pair, so the industry is puzzling, what is the demand of consumers for glasses?   Get a pair of clear, comfortable and long-lasting  glasses   To provide customers with a pair of clear, comfortable and long-lasting glasses, it is impossible to provide a uniform package, but we must provide personalized optometry and prescription services. In particular, it is also particularly necessary to analyze the optometric function according to the individual.   According to the industry survey eyewear report, consumers' functional requirements for lenses are as follows.   Consumers' concern for different attributes of lenses. ●Concern for the clarity of the lenses: 62.5%+   ●Concern abo...

As the name suggests,   non-sparking tools  do not produce the sparks (or cold sparks) recommended for use in flammable environments, which helps to protect plants, equipment, and, most importantly, human life. This is why they are called safety tools.   What is a non-sparking tool? Non-sparking in hand tools is defined as a metal/tool that does not produce sparks (or cold sparks) when the tool strikes or impacts another metal or concrete. They are usually copper-based alloys and are used to make tools that do not produce sparks and are therefore often referred to as non-sparking.  259 Non-Sparking Slotted Offset Screwdriver Firstly, non-sparking tools are therefore ideally suited to work involving flammable materials. Regular steel tools should not be used when working in facilities/areas containing flammable solids, liquids, or gases. If a steel tool slips/strikes the equipment, a hot spark will be generated - this could lead to a fire. For this reason, hand tools ...