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+86 21 60913551
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About CICATM
What is CICA
Composite insulated cross arm (CICA) is composed of cable insulators, post insulators, metal coupling connection, voltage equalization shielding devices, and suspend fitting strings for conductors.CICA (Composite insulated cross arm) replaces the combination of "traditional iron cross arm + hanging insulated string" in overhead transmission lines, and acts as an insulating support for high-voltage wires. It has more excellent electric insulation performance and mechanical performance than traditional solutions.
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01
Shield ring
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03
Line insulator
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05
Post insulator
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02
Grading ring of post insulator
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04
Grading ring of line insulator
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06
End joint fittings
CICA structure
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01.
Braced or pivoting VA horizontally placed post insulator and suspension line insulator are connected together by a wire-hanging flange conductor fitting and other fittings.
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Transmission steel pipe poles with less load of 138kV and below.
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220kV and above, transmission lines with heavier loads.
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220-400kV, the transmission line tower with larger load.
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02.
Single line postIt is composed of a post insulator, which is connected to the tower body by flanges, wire-hanging flanges conductor fitting and other fittings. Commonly used for distribution network steel poles.
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Transmission steel pipe poles with less load of 138kV and below.
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220kV and above, transmission lines with heavier loads.
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220-400kV, the transmission line tower with larger load.
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03.
Double VTwo horizontally placed post insulators and two oblique-stayed line insulators are combined together through end nodes and other hardware connections.
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Transmission steel pipe poles with less load of 138kV and below.
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220kV and above, transmission lines with heavier loads.
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220-400kV, the transmission line tower with larger load.
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04.
One post with three tensionIt consists of a horizontally placed post insulator, two horizontally placed line insulators and a diagonally-stayed line insulator connected by a wire flange and other fittings.
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Transmission steel pipe poles with less load of 138kV and below.
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220kV and above, transmission lines with heavier loads.
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220-400kV, the transmission line tower with larger load.
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Formula and Craft
Through the control of the silicone rubber matrix structure, it can obtain excellent UV aging resistance, acid rain aging resistance, and high temperature aging resistance; through the selection and modification of fillers.
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Through precise control of 3 elements of vulcanization (temperature, pressure, time) and unique vacuum cold runner injection molding equipment with independent intellectual property rights, rubber material is fully vulcanized.
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CICA advantages
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Make line more compact
Replace suspension insulators, narrow line corridors Reduce wind swing.
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Reduce the cost of land acquisition
Reduce tower height and width Reduce land occupation for tower base.
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Reduce the EMF value
Reduce span between the conductors The EMF value is the key data of the decision-making agency/regulatory agency.
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Lightning resistance
Use the composite cross arms instead of suspension insulators, the insulationlength is increased,and the lightning resistance level is higher.
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Eliminate all kinds of flashover accidents
The horizontally arranged composite cross arm replaces the traditional iron cross arm. In addition to the excellent hydrophobicity and hydrophobicity of the silicone rubber sheath material, it can effectively prevent rain flashover, ice flashover, pollution flashover and other problems.
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Increase voltage capacity
Cancel the hanging insulator string, raise the height of the wire hanging point, boost the voltage without changing the tower, and increase the transmission voltage.
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More economical
With decreased tower height，narrow tower body and smaller land occupation for tower base, the cost of tower material is decreased, so the comprehensive construction cost is accordingly decreased; The external insulation is maintenance-free for ≥30 years, and the whole life cycle cost is greatly reduced.
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More environmentally friendly
Reduce land occupation, environmentally friendly,Reduce comprehensive construction materials and energy consumption.
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More beautiful
CICA is beautifully designed and easy to integrate into the surrounding environment.
