Intended use: earthing of conductors for HV overhead lines.
Application: from heght, from the metallic brackets of HV overhead line poles.
Two application methods depending on the operator’s positioning compared to the conductor:
Automatic self-locking clamps (CAA) must be handled using an insulating stick according to the power line voltage.
Packing: waterproof bag.
Operations must also include the following equipment:
Tips: we recommend the use of manual earthing clamps with scraping jaw to clean and remove layers of oxides, dirt and protective paint from the metallic brackets of overhead line poles, in order to obtain appropriate contact resistance.
|Phase Sp cable cross-section (mm2)||16||25||35||50||70||95|
|Nominal short-circuit current for t=1s Isc (kA)||4||6,25||8||12||16||18|
|Shock (peak) nominal current for t=0,02s Isd (kA)||10||15,63||20||30||40||45|
|Test short-circuit current for t=1s (kA)||4,6||7,2||9,2||13,8||18,4||20,7|
|Test shock (peak) current for t=0,02s (kA)||11,5||17,97||23||34,5||46||51,75|
|Power factor (according to SR EN 61230)||2,5|
|Length of earthing cable lp (m)||max. 17,5|
|Diameter (mm) of the conductor where the phase clamp can be applied (mm)||5÷32||6÷32|