SANWA TEKKI CORPORATION

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ShinkansenPolymer Insulators

Polymer insulators for anchors

Strain insulators for feeders for 25 kV AC wires for the Shinkansen: Each of these insulators is equivalent to a chain of five Model 250EPJ porcelain insulators.

Main specifications of the product shown in the photograph

ModelP250-5KEP
Rating117.6kN (12000kgf)
Commercial power-frequency
wet withstand voltage
135kV
Lightning impulse withstand level320kV

Polymer insulators for the Shinkansen (for suspension)

Suspension insulators for 25 kV AC wires for the Shinkansen: Each of these insulators is equivalent to a chain of five Model 250EPJ porcelain insulators.

Main specifications of the product shown in the photograph

ModelP250-5KEP
Tension breaking load117.6kN (12000kgf)
Commercial power-frequency
wet withstand voltage
135kV
Lightning impulse withstand level320kV

Polymer insulators for AC wires for narrow-gauge lines (for suspension)

Suspension insulators for 20 kV AC wires for narrow-gauge lines: Each of these insulators is equivalent to a chain of three Model 250EPJ porcelain insulators.

Main specifications of the product shown in the photograph

ModelP250-3EP
Tension breaking load68.6kN (7000kgf)
Commercial power-frequency
wet withstand voltage
100kV
Lightning impulse withstand level215kV

Long rod polymer insulators for AC wires for narrow-gauge lines

Long rod insulators for 20 kV AC wires for narrow-gauge lines: Each of these insulators is equivalent to an AC long rod porcelain insulator.

Main specifications of the product shown in the photograph

ModelPACH-2(H) special
Tension breaking load68.6kN (7000kgf)
Bending fracture load2.254kN (230kgf)
Commercial power-frequency
wet withstand voltage for commercial
140kV
Lightning impulse withstand level290kV

* The variation “special” is featured by fittings made of SUS304 and is intended for use in areas subject to salt damage.

Polymer insulators for DC wires for narrow-gauge lines (for suspension)

Suspension insulators for 1.5 kV DC wires for narrow-gauge lines: Each of these insulators is equivalent to a chain of two pairs of Models 180EP and 180C porcelain insulators.

Main specifications of the product shown in the photograph

ModelP180-2C
Tension breaking load73.5kN (7500kgf)
Commercial power-frequency
wet withstand voltage for commercial
45kV
Lightning impulse withstand level120kV

Long rod polymer insulators for DC wires for narrow-gauge lines

Long rod insulators for 1.5 kV DC wires for narrow-gauge lines: Each of these insulators is equivalent to a DC porcelain insulator.

Main specifications of the product shown in the photograph

ModelPDC
Tension breaking load68.6kN (7000kgf)
Bending fracture load3.087kN (315kgf)
ommercial power-frequency
wet withstand voltage
65kV
Lightning impulse withstand level180kV

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