1. Prepare cable acceptance tools: steel tape measure, vernier caliper. 2, cable to carry out random inspection, after all, many people buy a lot of cable products at a time, the same batch of production cable product quality, performance is similar, if you want to accept one by one, it will...

Wire and cable is used to transmit electrical (magnetic) energy, information and realize electromagnetic energy conversion of wire products, broad sense of wire and cable is also referred to as cable, narrow sense of cable refers to insulated cable, it can be defined as: by the following parts...

In today's era, human life and production have been inseparable from the help of wire and cable, wire and cable has been an essential application, and customers in the purchase of wire and cable products are most concerned about the quality of course, but because of different uses, a wide...

After the comparative experiment of flame retardant cable and non-flame retardant cable, the main practical significance of flame retardant cable is obtained: 1. Flame-retardant wires can give more than 15 times the escape time than non-flame-retardant wires; 2. The raw materials burned by...

The copper wire of the wire and cable is generally shiny, the color looks bright, such a wire and cable is of good quality. However, seeing that the surface of some wires and cables copper wire is black, it is considered to be of poor quality, and this is not excluded. However, why do wires and...

To see. See if there is a quality system certificate; See whether the certificate of conformity is standardized; Look at whether there is a factory name, factory address, inspection seal, and production date; See if the wire is printed with trademarks, specifications, voltage, etc. Also look at...

Whether it is home improvement cable cable or industrial cable has its relative service life, generally speaking, home improvement cable life is longer than outdoor cable, copper core cable is longer than other material cables, standard environmental cables are longer than harsh environmental...

RF coaxial cable assemblies are an essential part of the RF space, and are at the heart of many conductive interconnect solutions from the module level to complete systems. The RF coaxial cable assembly consists of two parts: RF coaxial connector and RF coaxial cable. RF coaxial cable assemblies...

ies are an essential part of the RF space, and are at the heart of many conductive interconnect solutions from the module level to complete systems. The RF coaxial cable assembly consists of two parts: RF coaxial connector and RF coaxial cable. RF coaxial cable assemblies are mainly used to...

Coaxial cables or coaxial cables are used in conventional electrical installations, such as satellite TV. While there are many different types of these cables on the market, there are two common ones: RG6 and RG59. If you're working on a DIY electrical project and even have a basic understanding...

1.What is a cable? Cable, in fact, is a kind of electrical energy or signal transmission device, usually composed of several or several sets of wires, which is mainly used to transmit electricity, transmit information and realize electromagnetic energy conversion of a large class of electrical...

With the progress of society, science and technology are more and more developed, all these premises are based on the application of electricity, electricity brings light and convenience to our lives, then as the carrier of electricity The status of wire and cable is also very important,...

1. Signal transmission method: optical fiber uses optical signal transmission, while CCTV line uses electrical signal transmission. 2. Transmission distance: The transmission distance of optical fiber is long, which can reach more than tens of kilometers, while the transmission distance of CCTV...

Video signal transmission generally adopts direct modulation technology, in the form of baseband frequency (about 8MHz bandwidth), the most commonly used transmission medium is coaxial cable; Coaxial cable is specially designed to transmit video signals, and its frequency loss, image distortion,...

Weak current cable refers to the cable used for security communication, electrical equipment and related weak current transmission purposes. There is no strict boundary between "wire" and "cable". Usually the product with a small number of cores, a small product diameter and a simple structure...

Photovoltaic cables are often exposed to sunlight, and solar systems are often used under harsh environmental conditions, such as high-temperature ultraviolet radiation. In Europe, sunny terrain will result in on-site temperatures of up to 100°C for solar systems. Now, the various materials we...

First, observe the cross-section Wires and cables with larger sections only need to cut the section, and if you see whitish, it is likely to be copper-clad aluminum. 2. Fire Burn the conductor with a lighter, observe the combustion phenomenon and combustion results, and also identify some...

First, the classification is different: network cable cat5e and cat6 are two different types of network cables, cat5e belongs to super five network cables, and cat6 belongs to six types of network cables. Although the classification is different, both work the same, both have the same type of...

Features of RG6 cable: RG6 cables are made of foil shields and braided aluminum shields. They have better insulation properties. The inner conductor is thicker at the center of 18 AWG copper. This helps the RG6 cable provide the ability to be longer distances and better bandwidth. The frequency...

Although live streaming has become the mainstream, and the consumption mode of "fast drink and fast food" is more easily accepted by the market, Xiao Bian believes that the best thing is always to dig for yourself, and you know what you really want to buy! However, many shoppers must find that...