Three-phase short-circuiting device for conductors of various shapes, with universal clamps in lightweight construction

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SKU: Msp - CCRU/E - 3xSf/lf - Sp/lp - S/P/p , Msp - CCNU/E - 3xSf/lf - Sp/lp - S/P/p
Category:

Intended use: earthing of conductors / bars of various forms of power cells, cabinets,etc.

Application: from the ground, by the application of the clamp on the conductor, followed by the tightening of the clamp actuator screw.

Classic universal phase clamps must be handled using an insulating stick according to the installation, provided with ‘’RO bayonet’’ coupling system.

Constructive shapes :  three-phase.

The three-phase short-circuiting device includes the following components:

  • Phase clamp – 3 pieces
  • Phase cable – 3 pieces
  • Earthing cable – 1 piece
  • Manual earthing clamp – 1 piece

Packing: waterproof bag.

Other equipment to be used in conjunction:

  • connecting insulating stick type PMU 20-1 B/ba.

Tips: given their dimensions and light weight, CCRU/E and CCNU/E clamps are recommended for use in power installations where the spaces between the conductor bars are extremely small, and the clamp is applied on the conductor from a small distance.

 

General technical characteristics of short-circuiting devices with universal clamp types CCRU/E and CCNU/E

 Clamp type

CCRU/E sau CCNU/E

CCNU/E

Earthing Sp cable cross-section (mm2)

16

25

35

50

70

95
Nominal short-circuit current for t = 1s Isc (kA)

4

6,25

8,75

12,5

17,5

23,75

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

10

15,63

21,9

31,25

43,75

59,38

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

4,6

7,2

10,06

14,38

20,13

27,31

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

11,5

17,97

25,16

35,94

50,31

68,3

Power factor (according to SR EN 61230)

2,5

 

Phase clamp type

Classic universal reduced clamp (CCRU/E) Classic universal normal clamp (CCNU/E)

Length of phase cables – three-phase short-circuiting device lf (m)

max. 2,5

max. 2,5

Length of the earthing cable – single-phase / three-phase short-circuiting device lp (m)

max. 10 / max. 7,5

max. 10 / max. 7,5

Thickness of the flat bar where the phase clamp g can be mounted g (mm)

max. 30

max. 45

Diameter of the sphere-type Sf coupling part (mm)

20/25

20/25

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

4 ÷ 30

4 ÷ 36

The three-phase short-circuiting device includes the following components:

  • Phase clamp – 3 pieces
  • Phase cable – 3 pieces
  • Earthing cable – 1 piece
  • Manual earthing clamp – 1 piece

Constructive types of phase clamps:

  • Classic Universal Reduced Clamp (CCRU/E)
  • Classic Universal Normal Clamp (CCNU/E)

-Clemă Clasică Normală Universală (CCNU/E)