Title: A Comprehensive Guide to Shandong Communication Cable Specifications and Models
Shandong Province, located in the eastern part of China, has a long history of communication cable production and is known as the "cable province". To provide a comprehensive guide to Shandong communication cable specifications and models, this article will cover various aspects of the industry.First, we will introduce the different types of communication cables commonly used in Shandong, such as coaxial cables, fiber optic cables, and twisted-pair cables. Each type has its own advantages and applications, and understanding their differences is crucial for selecting the appropriate cable for specific projects.Next, we will provide an overview of the key specifications for communication cables, including bandwidth, transmission distance, signal stability, and immunity to environmental factors like electromagnetic interference (EMI) and radio frequency interference (RFI). These specs help engineers evaluate the performance and suitability of different cables for their needs.Additionally, we will discuss the various models available in Shandong's communication cable market, such as standard cables, customized cables, and high-speed cables. Each model has its own features and benefits, and choosing the right one can impact the overall success of a communication project.To ensure the quality and safety of communication cables produced in Shandong, it is essential to comply with relevant regulations and standards. This section will highlight key requirements for cable manufacturing facilities and provide guidance on maintaining compliance over time.Lastly, we will offer some practical advice for working with communication cables, including tips for selecting and installing cables, troubleshooting common issues, and ensuring proper maintenance to prolong cable lifespan. By following these guidelines, engineers can maximize the performance and reliability of communication cables in Shandong.
Shandong, located in the eastern part of China, is a key region for通信电缆的生产和销售。 The province is home to many well-known cable manufacturers who produce a wide range of communication cables to cater to different industries and applications. This guide will provide you with an overview of the most common communication cable specifications and models used in Shandong.
Section 1: Introduction to Communication Cables in Shandong
1、1 Definition of Communication Cables
Communication cables are electrical wires used to transmit data, voice, and video signals over long distances. They are essential components of modern telecommunications systems, enabling people and businesses to connect and communicate with each other regardless of their location.
1、2 Types of Communication Cables
There are several types of communication cables, including:
a) Coaxial Cables: These cables use coaxial conductors to transmit signals and are often used in fiber optic communications systems.
b) Twisted-Pair Cables: These cables consist of two or more copper wires twisted inside one another, providing excellent signal integrity and bandwidth. They are commonly used in Ethernet networks and telephony systems.
c) UTP Cables: These cables have four pairs of wires: two twisted pairs for data transmission and twountwisted pairs for return current. They are widely used in computer networks and internet connections.
d) STP Cables: Similar to UTP cables, STP cables also have four pairs of wires but do not use untwisted pairs for return current. Instead, they use a separate pair of wires for grounding purposes.
Section 2: Common Communication Cable Specifications in Shandong
2、1 Coaxial Cable Specification
The common specifications for coaxial cables in Shandong include:
a) Core material: Polyethylene (PE), polypropylene (PP), low-density polyethylene (LDP), or aluminum foil.
b) Diameter: Ranging from 1/2" to 24/2" depending on the application.
c) Shielding: Optionally available, with inner layers of polyethylene or aluminum foil to prevent interference from external signals.
d) Temperature rating: From -40°C to +85°C for indoor applications and from -40°C to +105°C for outdoor installations.
e) Conductor material: Copper or aluminum alloy.
f) Insulation material: Polyethylene (PE) or PVC.
g) Cover material: Polyethylene (PE), PVC, or aluminum foil.
h) Fire resistance: Up to Class A (no smoke development at normal burning temperature for 30 minutes).
i) Conductor insulation resistance: Up to 1 x 10^16 ohms/km at 90°C.
j) Shield insulation resistance: Up to 1 x 10^16 ohms/km at 90°C.
k) Dielectric strength: Up to 60 kV/mm at 60°C.
2、2 Twisted-Pair Cable Specification
The common specifications for twisted-pair cables in Shandong include:
a) Tension level: From 47 up to 97 ohms for Ethernet networks and telephone lines.
b) Crosstalk frequency range: From 25 kHz to 1 GHz for Ethernet networks and telephone lines.
c) Ground wire resistance: Less than 10 mΩ per foot throughout the cable length.
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