The weight of the country is 15132 meters! Far East Cable "lights up" China Zun

In recent years, infrastructure mania and super projects have gradually become China's unique "business cards"
.
When it comes to super projects, people will think of China for the first time, such as the Hong Kong-Zhuhai-Macao Bridge, Daxing International Airport and so on
.
These super projects are all important displays of China's scientific and technological strength and comprehensive national strength, highlighting China's precision, Chinese speed, Chinese height and Chinese length, and repeatedly creating miracles, making Chinese people proud and surprising the world
.
When it comes to super projects, the super project "China Zun" from Beijing is naturally on
the list.

The tallest building in Beijing - China Zun

China Zun (official name: CITIC Building), named for its resemblance to the ancient ceremonial vessel "bottle"
.
China Zun officially started construction on July 29, 2013; On December 10, 2014, the underground structure was fully topped out; The height of the structure exceeded 100 meters in September 2015, 200 meters in March 2016, 300 meters on August 18 of the same year, 400 meters on November 9, and 500 meters in June 2017.
On August 18, the lifting of the crown steel structure of China Zun Pagoda was completed, the 106-story concrete pouring of the outer frame was completed, and the tallest building structure in Beijing was successfully topped out; In October 2018, China Zun was fully completed, and on December 28 of the same year, it began to be gradually delivered; On November 22, 2019, China Zun successfully passed the completion acceptance
.

With a construction area of 437,000 square meters, a height of 528 meters, 108 floors above ground and 7 floors underground, China Zun integrates Grade A office buildings, conference, business, sightseeing and a variety of supporting services, and can accommodate 12,000 people
.
The project took eight years from land acquisition, design, construction and completion, and now ranks ninth in the world and fifth in China, and is the most important building on the central axis of Beijing's CBD core, redefining the skyline
of China's capital.
At the same time, the project has set 8 world best and 15 domestic records
.

The technical requirements are high and the construction is difficult

China Zun is jointly implemented by the construction general contractor China Construction Co.
, Ltd.
- China Construction Third Bureau consortium, mechanical and electrical general contracting China Construction Installation
.
At the beginning of the construction of China Zun, the project team defined the ECPO innovation management model, that is, how to minimize the energy consumption of the building in the process of project construction, and select suppliers
with almost strict criteria in the selection of equipment and materials.
In short, any supplier that can be recognized by China can almost be recognized as the best top enterprises
in their respective fields.
It is precisely because of the participation and dedication of these powerful enterprises that China Zun can be proud of the world
with today's attitude.

As we all know, super high-rise buildings have many electrical equipment, large power loads, increased power supplies, and large construction areas and dense personnel, which pose a great test
for the safety and economy of electricity.
Therefore, for China Zun, how to install the cable in place to ensure the normal operation of the power supply has become a hurdle
that must be passed.

In particular, China Zun has a special situation, up to 528 meters, and needs to continuously and safely arrange twelve cables in a strong electric well with a width of only 450mm, which puts forward higher requirements for the difficulty of hanging and hanging, including cable placement, laying path, hoisting accessories arrangement and other technical measures need to be considered and focused on in advance to ensure that the installation needs
are finally met.

Concentrate on research and development, excellent product performance

As a Far East Cable Co.
, Ltd.
with 36 years of industry experience, it took the initiative to undertake this difficult task, provided China Zun with super high-rise building lifting cable products and system design support for intelligent buildings, and exclusively designed, developed and produced the world's longest special 10KV high-voltage hanging cable up to 820 meters, continuously transmitting power
to the building.
This is the first time that this cable product has been used in the Shanghai World Financial Center, and it has served China Zun again, which is undoubtedly a great affirmation
of the technical strength and innovation ability of Far East Cable.

As early as 2008, Far East Cable, as the first domestic supplier of independent research and development of lifting cables and hanging facilities for super high-rise buildings, supplied Shanghai World Financial Center with 10KV lifting cables for super high-rise buildings, the longest one is 708 meters, weighs 14 tons, and the lifting height ranges from 131 to more than 400 meters
.
After the installation of underground horizontal section, vertical section and high-rise horizontal section, this was the first time in the domestic building hanging and laying facilities at that time
.

Shanghai World Financial Center

Although it has extensive experience and has a successful case of the Shanghai World Financial Center, the entire company does not dare to slacken off in the
slightest respect for China.
As the core power of the entire building, the special 10KV high-voltage overhanging cable is very important, which can be called the "aortic blood vessel"
of China Zun.
Due to the particularity of the use environment, no matter how long and heavy, it can only rely on its own support for its own weight, and the cable is too thick and will inevitably affect other performance
.
At the same time, as a landmark building, it has higher requirements for cable products in terms of environmental protection and intelligence, which puts forward a severe test
for Far East Cable.

To this end, since 2012, Far East Cable has begun to follow up the China Zun project, held many discussions with Beijing Architectural Design Institute, and began to make careful preparations
for providing product and system design solutions on the basis of detailed understanding of cable laying products and technical requirements.
In 2016, with the steady progress of China Zun Construction, the Far East team began to design the construction plan, in order to obtain first-hand information, repeatedly entered the construction site of the building, conducted field investigations, and exclusively designed a special 10KV high-voltage overhanging cable for the special shaft structure of the building, which can be called "private customization"
.

Features of special 10KV high voltage overhanging cable:

Low smoke and halogen-free, flame retardant, fire resistant and other safety and environmental protection characteristics, and ensure the power supply requirements of the fire protection system to ensure the reliability
of the power supply safety of high-rise buildings.

No matter how long and heavy it is, it can support its own weight and effectively solve the problem that
ordinary cables are easily strained by their own weight in long-distance vertical laying.

Through the technical upgrade again, it has the characteristics
of time-saving, labor-saving, short construction period, and less space and area occupied while meeting the requirements of various functional designs.

At the same time, it has the advantages
of low overall investment cost, low maintenance rate, durability and good stability.

It can save non-ferrous metals, more environmentally friendly and intelligent
.

The site of the world's longest special 10KV high-voltage overhang cable hoisting ceremony

Solve technical problems with innovation

In March 2018, the first batch of special 10KV high-voltage overhang cables exclusively provided by China Zun Project arrived in Beijing and entered the site smoothly, and China Zun Construction began to enter the laying stage
of core power cables.
In order to ensure the smooth development of cable laying work, Far East Cable immediately gathered R&D services, technical services and other teams, rushed to the construction site as soon as the cable arrived, and conducted professional technical training for the engineering party and lifting construction team, including cable protection measures, the corresponding laying location of each cable, the lifting plan, laying precautions
, etc.

The Far East team conducts training on hoisting cable laying

In order to make the structure more compact during the cable laying process, the Far East team once again creatively designed a double-hanging spreader
for the special shaft structure of the building.
Using this spreader, two cables can be hoisted at the same time, and at the same time effectively solve the problem that the conductor is easily strained by its own weight in the vertical laying of the cable over long distances, which is also another innovative practice of the Far East team in spreaders, which is the first in the world
.

From the laying of the first batch of products in March 2018 to the successful laying of the world's longest special 10KV high-voltage hanging cable with a length of 820 meters in August, after 6 months of hoisting operations, Far East Cable laid a total of 24 hanging cables for the China Zun project, with a total length of 15,132 meters and a total weight of 136.
38 tons, creating a number of world firsts and the world's largest
。 This achievement is inseparable from the efforts and dedication of the Far East team, which tracks the whole process from the beginning of the cable entry, solves the technical problems of the ultra-high-rise power supply system with innovative technology, ensures the safe and orderly laying of hoisting cables, and realizes a new breakthrough
in ultra-high-rise vertical high-voltage cable laying technology.

Wang Chuanbin, chief expert of Far East Cable Industry (second from left), instructed on site

Far East Cable's application of hanging cables for super high-rise buildings with independent intellectual property rights in China Zun and other projects has greatly improved the power supply quality of the power receiving end of super high-rise buildings, and led the major change
in the power supply mode of super high-rise buildings with outstanding superiority 。 In the future, Far East Cable will further exert its industrial advantages, take the research and development and service of high-end products of green building power supply and distribution system as an important development direction, rely on strong technical research and development and manufacturing strength, combine market and customer needs, and strive to occupy the commanding heights and lead the new wind in the wave of green building development and smart city construction with more intelligent products and services, and obtain greater benefits
from it.
(Wang Jun)