Intended use: achievement of permanent spherical fixed points for the mounting of phase clamps for short-circuiting devices in high/medium voltage power substations.
Application: manual, performed on flat bars, packets of bus bars of various thicknesses, with the de-energisation of the installation.
Types of spherical parts – 3 types (with various forms: straight or inclined):
-Sphere Ø30 mm
-Sphere Ø25 mm
-Sphere Ø20 mm
Components:
- Spherical coupling part -1 piece
- Fittings – 1 set (with sizes as per the customer’s demands)
Tips: these spherical pieces (Ball studs) must replace bar assembly screws.
| Technical characteristics | |||
| Sphere diameter (mm) | 20 | 25 | 30 |
| Nominal short-circuiting current for t = 1s Isc (kA) | 11 | 17,5 | 30 |
| Nominal shock (peak) current for t = 0,02 s Isd (kA) | 27,5 | 43,75 | 75 |
| Stud thread dimension | M12 | M12 | M12;M14;M16 |
| Free length of the stud rod – on demand (mm) | 30; 40 | 30; 40 | 30;40;50;60;70;80 |
| Type of phase clamp which can be applied on this system | CCRU | CCRU/CCNU/CCTU | CCU/CAU/CARU |
Components:
-Spherical coupling part -1 piece
-Assembly item – 1 set (with sizes as per the customer’s demands)
Tips: these fixed spherical parts are recommended for installation instead of bar assembly screws.
