Phase clamps for electrical installations of the transport networks (Railway_Subway)


Category:

The phase clamps for electrical installations of the transport networks are made in two types adjusted to the mounting conditions:
– special clamp for connection at the 3rd rail of the subway installations;
– classic reduced clamp CrTf type for the railway installations

The special clamp for connection at the 3rd rail has a casted body from cooper-aluminum alloy and provided with a tightening screw that has a ring for maneuvers made with the hook-bayonet adapter mounted in the coupling system of the insulating stick PMU-20-1-B/baS.

The classic reduced clamp CrTf type contains an extruded body made of alluminium alloy and a tightening screw with a bayonet coupling system.

 

Clamp type

Classic phase clamp for connection at the 3rd rail

Reduced phase clamp CrTf type for railway

Clamp code

P 2160-0-00

P 2331-0-00
Nominal short-circuiting current for t = 1s Isc (kA)

30

16
Nominal peak currrent for t = 0,02 s Isd (kA)

60

40
Testing short-circuiting current for t = 1s (kA)

34,5

Testing peak current for t = 0,02 s (kA)

68

Peak factor

2

Dimensions (mm)

232 x 123 x 50

120 x 158 x 50

Type of 3rd rail for electric traction

40 type

Dimensions of the conductor on which it can be applied (mm)Ø 5 – Ø 32

Earthing cable length (m)

1,5

16

Weight (kg)

1,82

0,96