2018-07

Today, Dicheng cable editor will talk about the selection standard of monitoring cable RVV. In the above video surveillance cables, we see that the use of RVV cables is very much. RVV full name: PVC insulated PVC sheathed flexible cable. The letter R stands for flexible cord. Of course, when R is placed behind V, VR means PVC soft sheath. Is the implementation of GB/T. In the application of RVV cable in monitoring, we can understand the relevant standards one by one, and we can see whether it meets the requirements in the actual installation. 1, monitoring video line camera to monitoring host distance ≤ 100 meters, with 75-3/64

2018-07-24

2018-07

What is a real elevator cable

Elevator cables, accompanying cables, and elevator accompanying cables are special standard cables for the elevator manufacturing industry. They are mainly used in elevator control systems. The cables adopt special structural design and have a long service life. They can provide overall electrical control under the condition of long suspension length. At the same time, it can withstand large mechanical impact stress. The product should be steel wire bearing cable core, can be used for long-distance suspension use occasions. Jiangsu Dicheng Cable Co., Ltd. is a professional Yangzhou cable manufacturer, specializing in the production and sales of wires and cables, video cables, monitoring cables, weak current cables, elevator cables, integrated wiring, security monitoring cables, elevator special monitoring cables, poly

2018-07-24

2018-07

Integrated wiring must know the skills

In fact, the integrated wiring is a very easy to understand the project, as long as the mind to understand its principles, we will be able to master the system. Let's talk about the skills that integrated wiring must know! 1. must design the integrated wiring system in advance and cooperate with the installation works of civil engineering, fire protection, air conditioning, lighting, etc., so as to avoid unnecessary construction conflicts. 2., when conditions permit, weak current should go to its own weak current well to reduce the chance of electromagnetic interference. The floor wiring room and the main machine room should be arranged as large as possible to prepare for development and maintenance. For the network, the laying of the physical layer is crucial,

2018-07-24

2018-07

Audio engineering line purchase skills

As the name implies, the sound engineering line is the sound wire used in the construction of the project, rather than the sound short line on the sound equipment. Sound engineering lines are hundreds of meters long and tens of meters short. The places used are: cinemas, large supermarkets, factories, schools, offices, hospitals, stadiums, parks, conference rooms and other places of the sound system or background music system. Mainly responsible for the transmission of audio signals, is a professional audio system amplifier equipment and audio equipment connection media. Is an important bridge to achieve the perfect sound effect. jiangsu dicheng cable co., ltd. is a professional yangzhou cable manufacturers, specializing in the production and sales of wire and cable

2018-07-24

2018-07

Cables used in video surveillance

Video signal transmission generally uses direct modulation technology, in the form of baseband frequency (about 8MHz bandwidth), the common transmission medium is coaxial cable. Coaxial cable is specially designed to transmit video signals, its frequency loss, image distortion, image attenuation amplitude is relatively small, can be very good to complete the task of transmitting video signals. Generally, special SYV75 ohm series coaxial cables are used, and the commonly used model is SYV75-5 (its non-relay transmission distance for video signals is generally 300-500m); When the distance is relatively long, SYV75-7, SYV75-9 or even SYV75-12 coaxial cables are required (in actual engineering, the non-relay transmission distance of thick cables can reach more than 1km); There are also video amplifiers to enhance the brightness, chromaticity and synchronization signals of the video, however, the interference signal in the line will also be amplified, so too many video amplifiers cannot be connected in series in the loop, otherwise saturation will occur and image distortion will occur. The optical fiber transmission mode is adopted for farther distance. Optical fiber transmission has a series of advantages such as low attenuation, wide frequency band, no electromagnetic wave interference, light weight, good confidentiality, etc. It is mainly used for national, provincial and municipal backbone communication networks, cable TV networks and high-speed broadband computer networks. In the closed-circuit television monitoring system, optical fiber transmission has also become a long-distance video and audio and control signal transmission. Jiangsu Dicheng Cable Co., Ltd. is a professional Yangzhou cable manufacturer, specializing in the production and sales of wire and cable, video cable, monitoring cable, weak current cable, elevator cable, integrated wiring, security monitoring cable, elevator special monitoring cable, PVC insulated wire, flame retardant and fire resistant wire and cable, audio and telephone cable, video signal cable, LAN cable, etc. Contact telephone number: 0514-87531738.

2018-07-24

2018-07

Transportation and storage of wires and cables

The transportation and storage of wires and cables mainly have the following six points: 1. It is strictly prohibited to drop cables or cable trays with cables from high places during transportation, especially when the temperature is low (generally about 5 ℃ and below), throwing or falling cables may cause insulation and sheath cracking. Avoid storing cables in the open air in an exposed manner as much as possible, and the cable tray is not allowed to be laid flat. 3. When lifting packages, it is strictly forbidden to lift several plates at the same time. On vehicles, ships and other means of transport, the cable reel should be fixed with a suitable method to prevent mutual collision or overturning to prevent mechanical damage to the cable. The cable is strictly prohibited with acid, alkali and mineral oil contact, to be corrosive with these

2018-07-24

< 1 2 3 >

QR code

Jiangsu Dicheng Cable Co., Ltd.

Address: Shatou Pioneer Park, Yangzhou City, Jiangsu Province
Telephone:0514-87531738 87536528
Fax: 0514-87536508
E-mail:js@dcxl.net

Here is the title one h1 placeholder text

Business License

Banner

Here is the title one h1 placeholder text