SANWA TEKKI CORPORATION

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ShinkansenPull-off arms

Pull-off arm for Shinkansen heavy compound catenary equipment

新幹線ヘビーシンプルコンパウンドカテナリ用Pull-off arms of this type are used for heavy compound catenary equipment for the Shinkansen. They are classified into several models: Model HC-1 (photograph), which is used for hinged cantilevers that provide support from poles in open sections; Model HC-2, which is used in places such as tunnels and station buildings.

Main specifications of the product shown in the photograph

ModelHC-1A-E main armHC-1A-E auxiliary arm
Tensile withstand
load
4.12 kN (420 kgf)
(for 3 minutes)
4.12 kN (420 kgf)
(for 3 minutes)
Slipping sideway
withstand load
1.47 kN (150 kgf)
(for 3 minutes)

 

Pull-off arm for Shinkansen CS simple catenary equipment

新幹線CSシンプルカテナリ、PHCシンプルカテナリ用Pull-off arms of this model are used for CS simple catenary equipment. They are classified into several models: Model CS-1 (photograph), which is used for hinged cantilevers that provide support from poles in open sections; Model CS-2, which is used in places such as tunnels and station buildings.

Main specifications of the product shown in the photograph

ModelCS-1A-E main arm
Tensile withstand load3.14 kN (320 kgf) (for 3 minutes)
Slipping sideway withstand load1.47 kN (150 kgf) (for 3 minutes)

 

 

Model BL pull-off arm for narrow-gauge lines (L = 900 bow type for general purposes)

在来線用 BL L=900 一般用 弓

Pull-off arms of this model are the most commonly used pull-off arms for narrow-gauge lines. Their pipes are designed into a bow shape to prevent them from adversely affecting pantographs when pantograph inclination, train rolling, or some other phenomenon occurs due to cant in curves.

Main specifications of the product shown in the photograph

ModelBL (for general purposes, bow-type)
Tensile withstand load2.94 kN (300 kgf) (for 3 minutes)
Slipping sideway
withstand load
0.98 kN (100 kgf) (for 3 minutes)

 

Model BL pull-off arm for narrow-gauge lines (L = 900 bow type for insulation)

在来線用 BL L=900 絶縁用 弓Pull-off arms of this model are used to ensure the insulation of the rear end lines of DC overhead contact lines (1500 VDC) in places such as station buildings and the overbridges of narrow-gauge lines.

Main specifications of the product shown in the photograph

ModelBL (for insulation, bow-type)
Tensile withstand load2.94 kN (300 kgf)
(for 3 minutes)
Slipping sideway
withstand load
0.98 kN (100 kgf)
(for 3 minutes)
Withstand voltageAC 10 kV
(for 10 minutes, in a dry condition)

 

Model BL pull-off arm for narrow-gauge lines (L = 900 bow type for cyclic current prevention)

在来線用 BL L=900 循環電流防止用 弓

The cyclic current that occurs in hinged cantilevers due to the potential difference between contact wires and messenger wires may fuse bolts supporting the rear ends of pull-off arms. Pull-off arms of this model prevent the flow of cyclic current with the aid of an insulating material. Compare with pull-off arms for insulation, it is designed to be low in dielectric strength.

Main specifications of the product shown in the photograph

ModelBL (for cyclic current prevention, bow-type)
Tensile withstand load2.94 kN (300 kgf) (for 3 minutes)
Slipping sideway
withstand load
0.98 kN (100 kgf) (for 3 minutes)
Withstand voltageAC 3 kV (for 10 minutes)

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