Posts

Showing posts from November, 2022

The Difference Between The Distributed PV System And The Centralized PV System

Image
Photovoltaic power generation is a very common new energy source today. Compared to hydropower and wind power, its construction is not so demanding in terms of area selection. Hydropower is built in areas with abundant water resources, such as river sections with high water flow.  And wind power is generally built in the open terrain of the mountains, hills, and year-round wind. The photovoltaic is different, centralized large-area photovoltaic built in the desert, the Gobi areas, making full use of abandoned land resources.  Distributed PV is generally built on the roof of buildings, roofs, plant roofs, vegetable sheds, and other places, making full use of space. So what are the similarities and differences between distributed and centralized PV? Similarities (1) the same principle, are the use of solar energy in electricity, and then the generated electricity will be grid-connected transmission to the grid for production and life. (2) the same components, generally common ar...

The Difference Between YJV and VV Cables

Image
YJV cables and VV cables are basically the same in function and both belong to the same category of power cables used for the transmission and distribution of electrical energy, but their differences are also very obvious. The following is a detailed description of the differences between the two. I. The Difference Between The Name And Insulation Materials (1) VV cable is known as copper-core polyvinyl chloride insulation polyvinyl chloride sheathed power cable, YJV cable is known as copper-core cross-linked polyethylene insulation polyvinyl chloride sheathed power cable, YJV insulation material used is cross-linked polyethylene; VV insulation material used is polyvinyl chloride. (2) VV for plastic force cable, YJV that is, cross-linked cable, YJV cable whose insulation layer performance is better than plastic force cable. Plastic force cable: plastic insulation and sheathing of power cables , referred to as plastic force cable. Cross-linked cables: cables with cross-linked materials i...

Hong Kong - Singapore - Philippines - Hainan Province Submarine Cable System ALC Preparation

Image
Submarine Cable System for ALC Preparation SingTel and five regional operators recently announced the signing of a US$300 million contract to build a 6,000-kilometer submarine cable system, the Asia Link Cable System (ALC), designed to connect Hong Kong SAR, Singapore, the Philippines, Brunei, and Hainan Province to support economic growth in Southeast Asia. The enterprise alliance is co-led by SingTel and China Telecom Global Limited (CTG) and includes four other regional operators - China Telecom Group Corporation (CTC), Globe Telecom Corporation (Globe), and DITO Telecom Corporation (DITO) in the Philippines, and UNN in Brunei. Southeast Asia is one of the fastest growing economies in the world with rising digital demand from consumers and businesses," said Bill Chang, CEO of SingTel Group's enterprise and regional data center business. Consumers and businesses are increasingly relying on services and solutions that require higher bandwidth and lower latency connectivity to...

Correct Ways to Store and Transport Wire Cables

Image
Here are Some Ways to Store and Transport Wire Cables 1. During storage, wire cable can not place with acidic, alkaline, and corrosive substances, and it shall be stored separately. Insulated wire cables shall be stored in a dry and ventilated warehouse with a suitable temperature of 5-30 ℃ and relative humidity of no more than 75%. The window towards the sun shall be painted with white paint to avoid direct sunlight and premature aging of the insulating layer.  2. There shall be no harmful gas that can damage the insulation layer or corrode the conductor around the wire cable storage place.  3. Avoid storing in the open air to prevent accidental damage.  4. A small batch of wire cables can be stacked on the shelf, and the stack height should be 5-10 rolls. Large quantities of wires can be stacked into plum-shaped ventilated circular stacks. Single core wires and cables can be appropriately high; The stack height is 2m in spring and winter and 1.5m in summer and autumn. D...

LS Cable Wins 360 Km Submarine HVDC Cable Order In The Uk

Image
LS Cable Wins Order For Submarine High Voltage DC Cables in The UK Vattenfall has taken a major step forward in the delivery of the Norfolk Boreas wind farm, signing a contract with LS Cable & System and the DEME Group for the delivery of export cables connecting the wind farm to the National Grid. The consortium was also selected as the preferred bidder for the export cable for the remaining part of the Vattenfall Norfolk block. The contract includes the design, engineering, procurement, manufacture, and testing of approximately 360 km of high-voltage direct current (HVDC) export cable, with fiber optic cable including offshore installation and onshore connections. The selection of the innovative HVDC cable allowed Vattenfall to reduce the use of the cable route by a third, reducing the local impact and making the project more sustainable. Catrin Jung, Head of Offshore Wind at Vattenfall, said: "We are looking forward to working closely with LS Cable & System and DEME Gro...

Olisipo Submarine Cable System Ready for Construction - Connecting The Portuguese Submarine Cable Landing Station to The Data Center

Image
Olisipo Submarine Cable System Ready For Construction EllaLink, a high capacity and low latency fiber optic submarine cable directly connecting Europe and Latin America, will create a direct connection between Sines and the Lisbon metropolitan area, known as the Olisipo system. The Olisipo system is designed to connect all international submarine cable landings in Portugal to the main data centers in the region, using a secure and risk-proof infrastructure. This new fiber optic submarine cable will land at Carcavelos and Sines, with branch paths built to connect Seixal and Sesimbra cable landings to the Setubal region. According to the plan, the system will contain 288 fibers and the total design capacity of this 110 km long fully buried cable will be 4.3 Tbps. In addition, the robustness of the cable will be enhanced by line engineering, with special attention to cable crossings, full subsea and surface burial strategies, full cable armoring, and additional shore-end protection using...