Clamps: aluminium alloy
Bar: steel/hot dip galvanized
Elastomeric rings: Neoprene
Bolts: stainless steel A2-80
Nuts: stainless steel A2-80
Washers: stainless steel A2
These rigid spacers are used at bundled conductors in overhead lines up to 380 kV in free spans and loops to maintain the subconductor spacing under the influence of
wind, ice loadings, galloping and short circuiting forces The clamps of these rigid spacers are rotatable without self-damping properties.
At triple and quad bundles they are used as groups.
It is not permitted to use the spacer bars as an earthing anchor point during maintenance work.
RIBE provides installation recommendations for the spacers based on CIGRE recommendations. The installation recommendations depend on the wind conditions applicable to the respective line. Please contact us for further information.
Repair of damaged conductors is possible with repair helicals or connector helicals.
If the repaired area is in the vicinity of the installation location of the spacer,please maintain the following:
- Do not place the spacer on the repair or connector helical.
- The installation location of the spacer shifts towards the shorter subspan.
- The distance between the ends of the repair or connector helical and the fastening helical of the spacer should be 20 cm.
1. safe spacing of the individual conductors of the conductor bundle under normal operating conditions.
During normal operating conditions which include wind and ice loads the subconductors of the bundle are kept in the intended arrangement (double, tripple or quad bundle), without the partial conductors colliding or the bundle becoming twisted or entangled.
The number and distance of the spacers wíll directly affect the performance.
The installation conditions specified by us on the individual catalog sheets need to be followed strictly.
2. Damping of aeolian conductor vibrations within the spans.
Aeolian conductor vibrations within the spans are absorbed by the field spacers avoiding damage of the conductor itself.
Spacer dampers reduce the resulting conductor vibrations by energy absorption within the elastic elements (= damping elements) of the clamp arm bearings.
1. safe absorption of the transverse forces acting on the conductor bundle during short-circuit currents.
During high short-circuit currents in rigidly grounded networks, the partial conductors smash against each other between the spacers, but stay distanced at the spacers, resulting in heavy bending stresses within the conductors. After switching off the short-circuit
the partial conductors bounce back, but are fixed via the spacers again resulting in heavy bending stresses within the conductors.
These stresses (lateral forces) must be absorbed by the spacers without permanent deformation of the spacers and without damaging the conductors.
Remark:
Due to the partly insulating articulated or elastic members between the
clamps and the frame or bar of the field spacers, no cross currents can flow via the field spacers.
Thus it won't be allowed to use spacers as a fixed grounding point during maintenance work.
2. avoidance of corona discharge.
Via appropriate design of the clamping elements of the spacers, the corona extinction voltage at spacers is higher than the required levels.
Clamps: aluminium alloy
Clamp inserts: elastomer
Bar: steel/hot dip galvanized
Bolts: stainless steel A2-80
Nuts: stainless steel A2-80
Washers: stainless steel A2
Elastomeric rings: Neoprene
These rigid spacers are used at bundled conductors in overhead lines up to 380 kV in free spans and loops to maintain the subconductor spacing under the influence of
wind, ice loadings, galloping and short circuiting forces The clamps of these rigid spacers are rotatable without self-damping properties.
At triple and quad bundles they are used as groups.
It is not permitted to use the spacer bars as an earthing anchor point during maintenance work.
RIBE provides installation recommendations for the spacers based on CIGRE recommendations. The installation recommendations depend on the wind conditions applicable to the respective line. Please contact us for further information.
Repair of damaged conductors is possible with repair helicals or connector helicals.
If the repaired area is in the vicinity of the installation location of the spacer,please maintain the following:
- Do not place the spacer on the repair or connector helical.
- The installation location of the spacer shifts towards the shorter subspan.
- The distance between the ends of the repair or connector helical and the fastening helical of the spacer should be 20 cm.
1. safe spacing of the individual conductors of the conductor bundle under normal operating conditions.
During normal operating conditions which include wind and ice loads the subconductors of the bundle are kept in the intended arrangement (double, tripple or quad bundle), without the partial conductors colliding or the bundle becoming twisted or entangled.
The number and distance of the spacers wíll directly affect the performance.
The installation conditions specified by us on the individual catalog sheets need to be followed strictly.
2. Damping of aeolian conductor vibrations within the spans.
Aeolian conductor vibrations within the spans are absorbed by the field spacers avoiding damage of the conductor itself.
Spacer dampers reduce the resulting conductor vibrations by energy absorption within the elastic elements (= damping elements) of the clamp arm bearings.
1. safe absorption of the transverse forces acting on the conductor bundle during short-circuit currents.
During high short-circuit currents in rigidly grounded networks, the partial conductors smash against each other between the spacers, but stay distanced at the spacers, resulting in heavy bending stresses within the conductors. After switching off the short-circuit
the partial conductors bounce back, but are fixed via the spacers again resulting in heavy bending stresses within the conductors.
These stresses (lateral forces) must be absorbed by the spacers without permanent deformation of the spacers and without damaging the conductors.
Remark:
Due to the partly insulating articulated or elastic members between the
clamps and the frame or bar of the field spacers, no cross currents can flow via the field spacers.
Thus it won't be allowed to use spacers as a fixed grounding point during maintenance work.
2. avoidance of corona discharge.
Via appropriate design of the clamping elements of the spacers, the corona extinction voltage at spacers is higher than the required levels.
Helical rod: weather-resistant plastic
Additional informationThese spacers (BP) are suitable for all conductor rope materials. They can be used for voltage levels up to 500V.
Clamps: aluminium alloy
frame: steel/hot dip galvanized
Bolts: stainless steel A2-80
Nuts: stainless steel A2-80
Washers: stainless steel A2
These spacers dampers are used at bundled conductors in overhead lines up to 380 kV in free spans and loops to maintain the subconductor spacing under the influence of
wind, ice loadings, galloping and short circuiting forces. The spacer dampers have a frame to which the articulated arms are attached via elastic silicone rubber elements.
These elastic elements allow the articulated arms to follow the movements of the conductors, e.g. in the case of short-wave conductor oscillations causing displacement-dependent reset forces and maintain the distance of the the conductors.
It is not permitted to use the frame as an earthing anchor point during maintenance work.
Repair of damaged conductors is possible with repair helicals or connector helicals.
If the repaired area is in the vicinity of the installation location of the spacer,please maintain the following:
- Do not place the spacer on the repair or connector helical.
- The installation location of the spacer shifts towards the shorter subspan.
- The distance between the ends of the repair or connector helical and the fastening helical of the spacer should be 20 cm.
RIBE provides installation recommendations for the spacers based on CIGRE recommendations. The installation recommendations depend on the wind conditions applicable to the respective line. Please contact us for further information.
1. safe spacing of the individual conductors of the conductor bundle under normal operating conditions.
During normal operating conditions which include wind and ice loads the subconductors of the bundle are kept in the intended arrangement (double, tripple or quad bundle), without the partial conductors colliding or the bundle becoming twisted or entangled.
The number and distance of the spacers wíll directly affect the performance.
The installation conditions specified by us on the individual catalog sheets need to be followed strictly.
2. Damping of aeolian conductor vibrations within the spans.
Aeolian conductor vibrations within the spans are absorbed by the field spacers avoiding damage of the conductor itself.
Spacer dampers reduce the resulting conductor vibrations by energy absorption within the elastic elements (= damping elements) of the clamp arm bearings.
1. safe absorption of the transverse forces acting on the conductor bundle during short-circuit currents.
During high short-circuit currents in rigidly grounded networks, the partial conductors smash against each other between the spacers, but stay distanced at the spacers, resulting in heavy bending stresses within the conductors. After switching off the short-circuit
the partial conductors bounce back, but are fixed via the spacers again resulting in heavy bending stresses within the conductors.
These stresses (lateral forces) must be absorbed by the spacers without permanent deformation of the spacers and without damaging the conductors.
Remark:
Due to the partly insulating articulated or elastic members between the
clamps and the frame or bar of the field spacers, no cross currents can flow via the field spacers.
Thus it won't be allowed to use spacers as a fixed grounding point during maintenance work.
2. avoidance of corona discharge.
Via appropriate design of the clamping elements of the spacers, the corona extinction voltage at spacers is higher than the required levels.
frame: aluminium
hinge arms: aluminium
damping elements: EPDM
screws, nuts, sliders: stainless steel
These spacer dampers are used for spacing the partial conductors of a bundle in the span or in the current loop in the intended arrangement and at the specified spacing when external (wind, ice load, cable vibrations) and internal (short-circuit current) forces act on the conductor wire.
RIBE provides installation recommendations for the FAH based on recognised CIGRE recommendations.
The installation recommendations depend on the wind conditions applicable to the respective conductor.
Please contact us for more information.
We recommend that you always use this spacer dampers in conjunction with dynamic dampers for the respective phase conductors.
This combination (FAH + damper) best covers the low-frequency conductor vibrations in particular.
a) Spacing of the partial conductors of a bundle in normal operation.
b) Absorption of cable vibrations excited by air flow
c) Absorption of mechanical forces in case of a short circuit
Avoidance of potential differences and partial discharges
Advantages
Advantages over previous designs:
- single piece frame
- fewer individual parts
- Damping angle 45 degrees
- EPDM damping element
- Compression of the damping element
- Potential equalisation via damping element
- Limitation via stop at strongest frame point
- Faster in-house assembly due to partial automation
- 1 articulated arm for all positions
- Construction as a modular system - parts compatible with each other
frame: aluminium
hinge arms: aluminium
rods: aluminium-coated steel
damping elements: EPDM
screws, nuts, sliders: stainless steel
These spacer dampers are used for spacing the partial conductors of a bundle in the span or in the current loop in the intended arrangement and at the specified spacing when external (wind, ice load, cable vibrations) and internal (short-circuit current) forces act on the conductor wire.
RIBE provides installation recommendations for the FAH based on recognised CIGRE recommendations.
The installation recommendations depend on the wind conditions applicable to the respective conductor.
Please contact us for more information.
We recommend that you always use this spacer dampers in conjunction with dynamic dampers for the respective phase conductors.
This combination (FAH + damper) best covers the low-frequency conductor vibrations in particular.
a) Spacing of the partial conductors of a bundle in normal operation.
b) Absorption of cable vibrations excited by air flow
c) Absorption of mechanical forces in case of a short circuit
Avoidance of potential differences and partial discharges
Advantages
Advantages over previous designs:
- single piece frame
- fewer individual parts
- Damping angle 45 degrees
- EPDM damping element
- Compression of the damping element
- Potential equalisation via damping element
- Limitation via stop at strongest frame point
- Faster in-house assembly due to partial automation
- 1 joint arm for all positions
- Construction as a modular system - parts compatible with each other
Centre section, hinges, clamping jaws: Aluminium alloy
Damping elements: Silicone rubber
helical rod: Aluminium-coated steel
Screws of the clamping jaws: stainless steel A2-80
Discs: stainless steel A2, 200 HV
Centre section, hinges, clamping jaws: Aluminium alloy
Damping elements: Silicone rubber
helical rod: Aluminium-coated steel
Screws of the clamping jaws: stainless steel A2-80
Discs: stainless steel A2, 200 HV