Three-phase short-circuiting device for MV OHL – application from the ground – CAA clamp

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SKU: Msp CAA AS 3xSp/lp O/p
Category:

Application: from the ground, by the successive lifting of each clamp, hanging of the automatic self-locking clamp (CAA) on the conductor, followed by the pulling down of the clamp, automatically detached from the mounting adapter.

Considering the weight of the phase clamp, connected to the earthing conductor and the positioning of the overhead conductors at approx. 9 m from the ground, the application of clamps with the 9 m multipurpose telescopic insulating stick type PTU-AS-400-6-c is difficult to be performed in bad weather conditions.

In order to facilitate the application of clamps on overhead conductors, it is recommended to use the pulley system for the lifting of the short-circuiting clamps from the ground.

Components:

  • Self-locking automatic clamp (CAA) – 3 pieces
  • Earthing cable – 3 pieces
  • Earthing clamp – 1 piece
  • Mounting adaptor (AM/C) – 1 piece
  • Removal hook (CDA/C) – 1 piece
  • Mobile earthing rod – 1 piece

Packing: waterproof bag.

Related products:
– Multipurpose telescopic insulating stick type PTU-AS-400-6-c, provided with “hexagon 12” coupling system.

Technical characteristics

Value

Earthing cable cross-section Sp  (mm2)

16

25

35

50

70

Nominal short-circuit for t=1s Isc (kA)

4

6,25

8

12

16

Shock (peak) nominal current for t=0,02s Isd (kA)

10

15,63

20

30

40

Test short-circuit current for t=1s (kA)

4,6

7,2

9,2

13,8

18,4

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

11,5

17,97

23

34,5

46

Power factor (according SR EN 61230)

2,5

Earthing cable length  lp  (m)

max. 17,5

Diameter of the conductor where the phase clamp can be applied (mm)

5÷32

6÷32

Components:

  • Self-locking automatic clamp (CAA) – 3 pieces
  • Earthing cable – 3 pieces
  • Manual earthing clamp – 1 piece
  • Mounting adapter (AM/C) – 1 piece
  • Removal hook (CDA/C) – 1 piece
  • Mobile earthing electrode (peg) – 1 piece