Clamp bodies: aluminium alloy
Bolts: stainless steel A2-80
Nuts: stainless steel A2-80
Washers: stainless steel A2
The conductor has to be cleaned in the area of the clamping points before installation.
The connecting clamp has to be mounted after inserting the cables using hexagonal socket screws and tightened with the following installation torque:
M8: torque of 23 Nm,
M10: torque of 46 Nm
M12: torque of 80 Nm
Tightening must be done alternately and in several rounds.
1. static holding force
Tension-resistant fittings must hold the conductor with at least 2.5 times the maximum operational load or with at least 85% of the nominal force of the conductor, whichever is lower.
2. non-tensile fittings must hold the conductor with at least 30% of the nominal force of the conductor, unless otherwise agreed with the customer.
1. carrying the operating current
Fittings carrying the operating current of the conductor must not reach a higher temperature than the conductor itself when the highest permissible continuous current is applied. Likewise, the
voltage drop across the live connection must not be greater than that across a section of conductor of the same length.
2. short-circuit current carrying capacity
The fittings shall be designed so that they are not deformed by the highest expected short-circuit current stress and that they do not reach a temperature leading to any unacceptable loss of their mechanical strength.
3 Avoidance of partial discharges
The fittings shall be so designed that, at the maximum permissible operating voltage, the corona extinction voltage is higher than the required values.
Parallel groove clamps, allow non tension but current carrying connections for release and repositioning at any time.
Clamp bodies: aluminium alloy
Bolts: stainless steel A2-80
Nuts: stainless steel A2-80
Washers: stainless steel A2
These parallel groove clamps are used for current carrying non-tensioned connections of AAC, AAAC, ACSR and AACSR with different diameters up to a nominal voltage of 380 kV.
When ordering the reduced parallel groove clamps, according to RIBE no. F14006, the exact diameters of channels A and B must be specified.
Order example:
Channel A: ø15.8mm
Channel B: ø28.2mm
Parallel groove clamps: F14006KB.A06/B15
1 Static holding force
Non-tensile fittings must hold the cable with at least 30% of the nominal force of the cable, unless otherwise agreed with the customer.
2. special specifications
2.1 Current loop connections with connecting clamps
The conductor ropes to be connected are overlapped by several metres in the current loop and connected electrically and mechanically with 3 to 4 connecting clamps or, in the case of bundled conductors, with 3 to 4 spacers with current loop connection.
The advantage of this design is that there is a reserve of conductor cable if the tensioning clamps need to be repositioned.
1. routing of the operating current
Fittings that conduct the operating current of the conductor cable must not reach a higher temperature than the conductor rope itself when the maximum permissible continuous current is flowing. Similarly, the voltage drop across the current-carrying connection must not be greater than that across a conductor section of the same length.
2. short-circuit current resistance
The fittings must be designed in such a way that they are not deformed by the highest expected short-circuit current load.
deformed by the highest expected short-circuit current load and do not assume a temperature that leads to an unacceptable reduction of their mechanical strength.
3. avoidance of partial discharges
The fittings must be designed in such a way that at the maximum permissible operating voltage
is above the required values.
These parallel groove clamps can be used to connect a wide variety of conductor diameters.
Clamp bodies: aluminium alloy
Bolts: stainless steel A2-80
Nuts: stainless steel A2-80
Washers: stainless steel A2
These parallel groove clamps are used for current carrying non-tensioned connections of AAC, AAAC, ACSR and AACSR with different diameters up to a nominal voltage of 380 kV.
When ordering the reduced parallel groove clamps, according to RIBE no. B121028, the exact diameters of channels A and B must be specified.
Order example:
Channel A: ø15.8mm
Channel B: ø28.2mm
Parallel groove clamps: B121028A05/B18
1. Static holding force
Non-tensile fittings must hold the cable with at least 30% of the nominal force of the cable, unless otherwise agreed with the customer.
2. special specifications
2.1 Current loop connections with connecting clamps
The conductor ropes to be connected are overlapped by several metres in the current loop and connected electrically and mechanically with 3 to 4 connecting clamps or, in the case of bundled conductors, with 3 to 4 spacers with current loop connection.
The advantage of this design is that there is a reserve of conductor cable if the tensioning clamps need to be repositioned.
1. routing of the operating current
Fittings that conduct the operating current of the conductor cable must not reach a higher temperature than the conductor rope itself when the maximum permissible continuous current is flowing. Similarly, the voltage drop across the current-carrying connection must not be greater than that across a conductor section of the same length.
2. short-circuit current resistance
The fittings must be designed in such a way that they are not deformed by the highest expected short-circuit current load.
deformed by the highest expected short-circuit current load and do not assume a temperature that leads to an unacceptable reduction of their mechanical strength.
3. avoidance of partial discharges
The fittings must be designed in such a way that at the maximum permissible operating voltage
is above the required values.
These parallel groove clamps can be used to connect a wide variety of conductor diameters.