Cable aéreo
Overhead cable can integrate the electricity generated by solar power systems into the grid. ZMS puede proporcionar los cables aéreos necesarios, como ACSR., ABRE, CAA, and AAAC for various photovoltaic power generation projects.
In grid-connected solar power systems, the type of overhead cable used depends on specific installation requirements, such as voltage level, current-carrying capacity, mechanical strength, and environmental conditions.
From DC cables used for solar panels to AC cables used for inverter output, and finally to the overhead or underground cables that connect to the grid, ZMS’s professional team will comprehensively consider the scale of the solar project, geographical location, environmental conditions, and grid connection requirements to tailor the most suitable power cabling solution for you.
CAA (All Aluminum Conductor)
Estructura:
AAC is composed of one or more strands of aluminum wire. These conductors are made from electrolytically refined aluminum with a minimum purity of 99.7%. The construction follows the standards of EN 60889 Type AL1 according to BS 215.
Characteristics:
AAC conductors are highly conductive and primarily used in urban areas for low, medium, and high voltage overhead lines where spans are short. They exhibit excellent corrosion resistance, making them ideal for coastal regions.
Estándares:
ASTM B 230, ASTM B 231, TS IEC 1089, DIN48201, and BS 215.
AAAC (All Aluminum Alloy Conductor)
Estructura:
AAAC cables consist of aluminum alloy wires concentrically stranded. They are made from a magnesium-silicon-type aluminum alloy (alloy 6201) with magnesium content between 0.6-0.9% and silicon content between 0.5-0.9%. These conductors are designed to be highly conductive with a minimum of 53% IACS.
Characteristics:
AAAC conductors offer improved strength, weight, and electrical properties compared to AAC and ACSR. They have better vertical tensile properties and enhanced corrosion resistance, making them suitable for medium and high voltage transmission lines. Their lower ice-breaking loads are advantageous in regions with low ice and wind loads. AAAC conductors are customizable based on specific application needs and customer requirements.
Estándares:
ASTM B 230, ASTM B 231, TS IEC 1089, DIN48201, and BS 215.
ACSR (Aluminum Conductor Steel Reinforced)
Estructura:
ACSR conductors consist of several aluminum and galvanized steel conductors stranded in concentric layers. The core is made of galvanized steel, which may consist of 1, 7, o 19 wires, and is surrounded by aluminum strands. The core wire for ACSR is available with class A, B, or C galvanizing.
Characteristics:
ACSR cables are versatile and suitable for transmission lines across all voltage levels, including challenging terrains such as rivers and ravines. By adjusting the proportions of aluminum and steel, specific properties for various applications can be achieved. Increasing the steel content enhances antistatic properties, while more aluminum content increases current carrying capacity.
Estándares:
ASTM B 230, ASTM B 231, TS IEC 1089, DIN48201, and BS 215.
Productos de cables ZMS
Preguntas más frecuentes
¿Qué cable aéreo utilizar en sistemas de energía solar??
En sistemas de generación de energía fotovoltaica conectados a la red, una vez que el inversor convierte la energía de CC generada en energía de CA y la integra en la red de CA, La transmisión de energía se realiza a menudo a través de líneas aéreas.. Típicamente, El proceso de conexión a la red de sistemas de generación de energía fotovoltaica puede ocurrir en los siguientes escenarios.:
Conexión directa
Para pequeños sistemas de generación de energía fotovoltaica distribuida, como la energía fotovoltaica en tejados residenciales, La energía CC se puede convertir directamente en energía CA a través del inversor y luego conectarse a la red de bajo voltaje a través de líneas de distribución.. En este caso, underground low-voltage cables and overhead insulated cables like ABC cables can be used.
Conexión a través de Transformadores de Caja o Integración de Subestaciones
Las centrales fotovoltaicas de mediana o escala comercial podrán utilizar subestaciones tipo caja (transformadores de caja) para convertir la energía CC generada en energía CA adecuada para la integración en la red a través del inversor, y luego aumente el voltaje a través del transformador de caja para que coincida con el nivel de voltaje de la red aérea, antes de conectarse a líneas aéreas.
Las centrales fotovoltaicas montadas en tierra a gran escala normalmente requieren un transformador para aumentar el voltaje a un nivel más alto para una transmisión eficiente.. En este caso, La energía está conectada directamente a una subestación., que luego lo distribuye a las redes aéreas de alto o ultra alto voltaje..
En estos dos escenarios, si la distancia desde la central eléctrica hasta el punto de conexión a la red es relativamente corta y la carga no es grande, AAC cable could be an economical choice. Para medias distancias o donde se requiera un mejor rendimiento físico, AAAC cable may be a better option. Para transmisión a larga distancia o donde se necesitan requisitos especiales de resistencia del cable, especialmente cuando las líneas aéreas necesitan cruzar terrenos complejos o soportar condiciones climáticas extremas, ACSR conductor will be the most suitable choice.
What Are the Differences between AAC, AAAC, and ACSR Cables?
CAA: All-Aluminum Conductor (CAA) cables are relatively low-cost, lightweight, and have good conductivity, making them suitable for short-distance transmission and light load conditions. Sin embargo, their strength is relatively low, with limited tensile capability, which might not be suitable for long distances or situations requiring high mechanical strength.
AAAC: Compared to AAC, All-Aluminum Alloy Conductor (AAAC) cables have higher mechanical strength, better tensile strength, and corrosion resistance while maintaining good conductivity. This makes AAAC more suitable for medium-length transmission lines and environments with certain mechanical strength requirements, although the cost may be slightly higher than AAC.
ACSR: Aluminium Steel Reinforced Conductor (ACSR) cables combine the excellent conductivity of aluminum with the high strength of steel. They are particularly suitable for long-distance, heavy load, or transmission lines with strict mechanical strength requirements. ACSR cables can effectively withstand storms, snow loads, and line tension but are relatively more expensive.
In solar power generation systems, the choice between AAC, AAAC, or ACSR cables mainly depends on the system’s design, transmission distance, load requirements, and cost-benefit analysis. For short-distance and light load power transmission, AAC can be selected. For medium distances or where better physical performance is needed, AAAC is suitable. For long-distance transmission or complex environmental conditions, ACSR is usually the preferred choice.
What Factors Should Be Considered When Selecting Overhead Cables for PV Power Systems?
When selecting overhead lines for photovoltaic power generation systems, several key factors must be considered to ensure the system’s safety, eficiencia, and long-term reliability:
Environmental Conditions: Evaluate the climate conditions of the installation site, including wind speed, rainfall, temperature range, ice load, and salt spray corrosion. Choose overhead cable types and specifications that can withstand these environmental impacts.
Voltage Level and Current Carrying Capacity: Select cables with the appropriate voltage level and sufficient current carrying capacity based on the output power of the photovoltaic power generation system and grid connection requirements to ensure safe and lossless power transmission.
Conductor Type: Consider using AAC, AAAC, or ACSR conductors based on transmission distance, load requirements, and cost-benefit analysis. For low-voltage transmission, use insulated cables such as PVC or XLPE insulated cables.
Route Planning: Follow overhead line route selection principles, such as shortening the path as much as possible, reducing corners, avoiding potential obstacles and hazardous areas, ensuring line stability, and ease of maintenance.
Mechanical Strength and Durability: Choose cables that can withstand tension, wind pressure, and other mechanical stresses. For long-distance transmission or harsh environments, high mechanical strength ACSR may be the better choice.
Installation and Maintenance: Consider the ease of installation, maintenance costs, and potential future expansion needs. Choose cable types that are easy to install and maintain.
Safety: Ensure that overhead cables and accessories comply with local safety standards and regulations, including lightning protection and grounding requirements, to prevent electrical fires and electric shock risks.
Cost-Effectiveness: Conduct a comprehensive evaluation of the costs and benefits of different overhead power cable solutions, including initial investment, operational maintenance costs, and expected lifespan, to make the most economical and reasonable decision.
Compatibility and Compliance: Ensure that the selected overhead cable matches the output power of the photovoltaic system and meets national or regional electrical safety standards and grid connection requirements.
Future Expandability: Consider the potential expansion of the solar system. Choose cables with some redundancy to facilitate convenient upgrades when increasing generation capacity or improving the system in the future.
The final cable selection should be based on the specific project’s actual situation, including environmental factors, budget constraints, safety standards, and grid requirements. ZMS can provide a comprehensive cable solution for your solar power generation project, helping to simplify the project implementation process, shorten construction periods, and effectively control costs.
Destacado del proyecto
ZMS unió fuerzas con Poder del Estado Verde (SGP), pionero en infraestructuras de energías renovables, equipar un monumental 10 Proyecto fotovoltaico MWP en Kabul, Afganistán.
ZMS analizó exhaustivamente el proyecto fotovoltaico y le proporcionó 1Cables solares X10 y 1X6 H1Z2Z2-K, 3Cables BT X300, 3Cables MT X300, así como ACSR 185/30 cables aéreos. Complementándolos, había accesorios vitales como conectores fotovoltaicos y cajas de herramientas meticulosamente seleccionadas..
El compromiso de ZMS con la calidad y la confiabilidad facilitó una instalación sin problemas y una eficiencia operativa, Contribuir a la infraestructura energética sostenible de la región..
Servicio ZMS
Fabricación personalizada
We understand that every customer's needs are unique. Por lo tanto, Ofrecemos servicios personalizados de personalización de cables solares., Adaptando cada detalle, desde las especificaciones del cable hasta las interfaces de conexión, de acuerdo con los requisitos específicos de su proyecto., asegurando la máxima compatibilidad y eficiencia.
Logística global de respuesta rápida
Con el apoyo de nuestra red logística global, ZMS garantiza que sus pedidos de cables fotovoltaicos lleguen a cualquier rincón del mundo de forma segura y rápida. Nuestro equipo de logística profesional monitorea cada etapa del transporte para garantizar la entrega oportuna de sus productos..
Apoyo técnico
ZMS's technical support team is always on standby. Cualesquiera que sean los desafíos técnicos que encuentre, Podemos proporcionar respuestas rápidas y soluciones profesionales., garantizando una experiencia de usuario sin preocupaciones.
Producción Verde
Nuestros cables y accesorios solares cumplen estrictamente los estándares medioambientales durante el proceso de producción., minimizando su impacto en el medio ambiente. Al elegir ZMS, no sólo estás invirtiendo en cables fotovoltaicos de alta calidad sino también contribuyendo al desarrollo sostenible del planeta.
