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
Tips: these spherical pieces (Ball studs) must replace bar assembly screws.
|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|
-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.