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Modern high-speed train systems, avoid the risk of electrocution by the exposed electric rail by implementing a segmented power supply, where each segment is electrified only while covered by a vehicle which is using its power
The trains have metal contact blocks called collector shoes (also known as contact shoes or pickup shoes) which make contact with the conductor rail. The traction current is returned to the generating station through the running rails. the conductor rail is usually made of high conductivity steel or steel bolted to aluminium to increase the conductivity. Elsewhere in the world, extruded aluminium conductors with stainless steel contact surface or cap, is the preferred technology due to its lower electrical resistance, longer life, and lighter weight.
Third-rail systems are a means of providing electric traction power to trains using an additional rail (called a "conductor rail") for the purpose. On most systems, the conductor rail is placed on the sleeper ends outside the running rails, but in some systems a central conductor rail is used. The conductor rail is supported on ceramic insulators (known as "pots"), at top contact or insulated brackets, at bottom contact, typically at intervals of around 10 feet (3.0 m).
Welding aluminum truck customized
If the overall weight of a car is reduced by 10%, fuel efficiency can be improved by 6% to 8%. Aluminum alloy cargo compartments have various advantages such as lightweight and energy-saving, anti-corrosion sealing, long service life, and recyclability. Automotive lightweighting refers to reducing the curb weight, cargo compartment weight, etc. of a vehicle as much as possible while ensuring its strength and safety, in order to improve its power performance and reduce fuel consumption
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Modern high-speed train systems, avoid the risk of electrocution by the exposed electric rail by implementing a segmented power supply, where each segment is electrified only while covered by a vehicle which is using its power
The trains have metal contact blocks called collector shoes (also known as contact shoes or pickup shoes) which make contact with the conductor rail. The traction current is returned to the generating station through the running rails. the conductor rail is usually made of high conductivity steel or steel bolted to aluminium to increase the conductivity. Elsewhere in the world, extruded aluminium conductors with stainless steel contact surface or cap, is the preferred technology due to its lower electrical resistance, longer life, and lighter weight.
Third-rail systems are a means of providing electric traction power to trains using an additional rail (called a "conductor rail") for the purpose. On most systems, the conductor rail is placed on the sleeper ends outside the running rails, but in some systems a central conductor rail is used. The conductor rail is supported on ceramic insulators (known as "pots"), at top contact or insulated brackets, at bottom contact, typically at intervals of around 10 feet (3.0 m).
Welding aluminum truck customized
If the overall weight of a car is reduced by 10%, fuel efficiency can be improved by 6% to 8%. Aluminum alloy cargo compartments have various advantages such as lightweight and energy-saving, anti-corrosion sealing, long service life, and recyclability. Automotive lightweighting refers to reducing the curb weight, cargo compartment weight, etc. of a vehicle as much as possible while ensuring its strength and safety, in order to improve its power performance and reduce fuel consumption
