User Manual - Annex II High Voltage Instrument Transformers | CA/UT/KA
ANNEX II
Screw type
Torque wrench setting (Nm)
Use Torque wrench setting
M12/16/20 Fixing the insulator to the base 30 Nm
M10/12 Tangent Delta measurement tap 30 Nm
M10/12 Primary reconnection taps 30/40 Nm
M8 Secondary terminals (if they are of the screw type) 12 Nm
M10 Grounding (inside secondary terminal box) 12 Nm
M6 Cable gland 12 Nm
M8 Terminal Block Cover 20 Nm
TIGHTENING TORQUES
NOTE: If a torque di erent from that indicated in this table is indicated on the drawing or plates of the equipment, the torque indicated on the
drawing or plate must be applied.
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