Cradle to Gate
Identity ID
6cbaaae4-c896-4306-8b0c-cbc166e1b5dc
Materials
Associated ID
44212e32-216d-46df-8458-f60d7dea2360
Included activities starts
Included activities ends
Description
The product represented by this dataset is a tank-type SF6 circuit breaker, namely an SF6 circuit breaker that uses a metal casing to completely enclose the internal core components and uses SF6 gas as the arc-quenching medium, with a single-unit weight of about 4049.365 kg and an average nominal voltage of 127.5 kV, mainly composed of parts such as steel, stainless steel and plastics and copper parts, insulating materials, SF6 gas, etc., manufactured through processes such as parts machining, assembly, SF6 gas filling and testing. The key upstream raw materials of this product are steel, stainless steel, plastics and copper parts, insulating materials, SF6 gas, etc., and the downstream is mainly applied to high-voltage and extra-high-voltage power systems, especially the control and protection of outdoor substations and large power plants. As for the system boundary, the packaging of the product and its post-delivery transport, use, scrapping, recycling and final disposal, as well as infrastructure such as the manufacture of production equipment and plant construction, are not included within the dataset boundary. In terms of data sources and data processing, the data inventory is formed by merging data from multiple sources.
Activity Description
The system boundary is the cradle-to-gate of the tank-type SF6 circuit breaker. The starting point is the input of raw materials and the end point is the delivery of the finished tank-type SF6 circuit breaker from the factory. The main stages include, in order, component processing (steel, stainless steel, plastic, etc.), assembly (copper parts, insulation materials, etc.), SF6 filling (SF6, etc.) and testing.
Process Description
Circuit breaker refers to a mechanical switching appliance that can connect, carry and break current under normal circuit conditions, and can also connect, carry and break current under specified abnormal circuits (such as short circuits) for a certain period of time. It is mainly divided into air circuit breakers, vacuum circuit breakers, SF6 circuit breakers and plastic case circuit breakers. Tank-type SF6 circuit breaker is a type of SF6 circuit breaker. It uses a metal shell (usually stainless steel or aluminum alloy) to completely seal the internal core components to form an independent whole. The interior uses SF6 gas as the arc extinguishing medium. It is mainly composed of metal shell, copper parts, insulating materials and SF6 gas. It is in the form of a tank-type switchgear. It is widely used in high-voltage and ultra-high-voltage power systems, especially in the control and protection of outdoor substations and large power plants.
Time period
2022
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The production of tank-type SF6 circuit breakers mainly includes parts processing, assembly, SF6 charging and testing. The components (steel, stainless steel, plastic, etc.) are processed and assembled, and then the equipment is filled with SF6 gas. After passing a series of tests, the finished tank-type SF6 circuit breaker is obtained.