Delegates of the two sessions praised the 40,000-kilometer high-speed rail network The "unsung heroes" wire and cable have made indispensable contributions

According to the "14th Five-Year Plan for the Development of Modern Comprehensive Transportation System" issued by the State Council, by the end of 2021, the operating mileage of railways in the country exceeded 150,000 kilometers, of which more than 40,000 kilometers
were high-speed railways.
During the two sessions of the National People's Congress this year, railway-related topics received extensive attention
from deputies and members of the public.
In particular, the world's most developed high-speed rail network, which exceeds 40,000 kilometers, has won the praise
of the deputies and members.

Long Xiaohua, deputy to the National People's Congress, deputy secretary of the Xiangxi Tujia and Miao Autonomous Prefecture Party Committee and governor of Hunan Province, praised
the achievements in the development of high-speed rail.
She said: "In 1978, the first railway in Xiangxi, the Zhiliu Railway, was completed, opening the local door to the outside world; In 2019, the Qianchang Railway was completed and opened to traffic, and Xiangxi entered the era of bullet trains; In 2021, the Zhangjihuai high-speed railway was put into operation, and 'precision poverty alleviation' was officially integrated into the national high-speed rail network
for the first time.
"From general speed trains to EMUs to Fuxing, the development process of Xiangxi railway construction is a microcosm
of the high-quality development of China's railways.

The densely woven high-speed rail network has created a new way for the people to travel, a new driving force for economic development and a new height of transportation power, which will carry people's expectations and hopes for a better life and set off
towards happiness.
But in addition to the well-known "Harmony" and "Fuxing", we must not forget the wire and cable products
that are one of the heroes behind the scenes.

Whenever we take the high-speed rail, we often see a thin high-voltage wire above the car, also called catenary
.
The high-speed railway catenary is a special form of transmission line erected along the railway line to supply power to electric locomotives, and there are pantographs on the roof of the high-speed rail car responsible for contacting the wires on the high-speed rail line, thereby directing 25kV high-voltage electricity into the
high-speed rail train.
Therefore, traction power supply equipment and electric locomotives are the two main equipment of electrified railways, and the use of power cables is very large, and it is also one of the
important parts.

At the same time, considering the construction environment and extraordinary use of high-speed railways, the power cables used have relatively high
requirements.
Most of them require low smoke no (low) halogen, flame retardant, fire resistance, oil resistance, ultraviolet light resistance, moisture resistance, waterproof, mildew-proof, rat-proof, etc.
, and the south also requires termite
prevention.
It is suitable for high and low voltage power cables, low-smoke halogen-free cables, mica tape insulated fire-resistant cables, mineral insulated fireproof cables, leakage coaxial cables, etc.
in humid and hot climates
and ant environments in the south.

In addition, the construction of high-speed passenger dedicated lines, according to the current technology, rail transponders will be used in large quantities, which provides a broad market space
for rail transponder data transmission cables.
Among the cables used for high-speed railway construction, power cables will mainly be DC traction cables, flame retardant cables, fire-resistant cables, green environmental protection cables, self-controlled cables and other special cables
.
Signal cables are mainly concentrated in subway, signal cables and control cables, communication cables, communication optical cables and other varieties
.
Leakage coaxial and RF cables are mainly used in wireless communication systems
.

For any project, electricity is indispensable, especially a major project such as high-speed rail, once the power fails, the consequences will be unimaginable
.
This puts forward extremely high requirements for the power supply system, and efficiency, reliability and stability are the core
.
As an important carrier for transmitting electricity, the quality of wires and cables is also crucial
.
If the wires and cables are not passed, it will have a significant impact on the power supply system and even cause safety hazards
.
Let's like
the wire and cable products together.