Cabo H1Z2Z2-K

Photovoltaic cables are specifically designed for photovoltaic power generation projects, with insulation and sheathing characteristics that ordinary cables do not possess.

If ordinary cables are used in PV system, they are prone to failure in harsh outdoor environments, greatly reducing the lifespan of the entire solar power system. Adicionalmente, it can lead to current overload, severe voltage drop, frequent generation faults, and low generation efficiency in photovoltaic power plants, even potentially causing fires in the plant.

Portanto, to ensure the long-term stable operation of photovoltaic power plants for 25 anos, it is essential to choose cables specifically designed for photovoltaic systems, such as H1Z2Z2-K or PV1-F.

In typical photovoltaic systems, the most common options are H1Z2Z2-K 1×4 and H1Z2Z2-K 1×6 cables. Geralmente, larger cable cross-sections indicate greater load-bearing capacities.

Considerations such as working voltage, current capacity, and environmental temperature range should also be factored in. After determining the voltage and current requirements, refer to the parameter table of H1Z2Z2-K cables to select the appropriate specification.

If you encounter uncertainty in selecting cable specifications, our ZMS technical team is available to offer tailored solutions.

O cabo PV1-F é uma versão mais antiga do cabo solar que está em conformidade com o padrão TÜV 2Pfg1169, e sua certificação padrão deixou de ser atualizada. Em contraste, o cabo fotovoltaico H1Z2Z2-K está em conformidade com a mais recente TÜV EN50618:2014 certificação.

As classificações de tensão diferem entre os cabos PV1-F e H1Z2Z2-K. PV1-F tem uma tensão nominal de CC: 1.0kV e CA: Uo/U: 0.6/1.0kV, enquanto H1Z2Z2-K tem uma tensão nominal de DC: 1.5kV e CA: Uo/U: 1.0/1.0kV. H1Z2Z2-K pode fornecer maior eficiência e estabilidade de transmissão.

Em termos de estrutura, O cabo PV1-F possui uma única camada de isolamento, enquanto o cabo H1Z2Z2-K adota uma estrutura de isolamento de camada dupla. Isso torna o cabo H1Z2Z2-K superior em durabilidade e proteção, especialmente contra danos mecânicos e fatores ambientais.

Resumindo, O cabo solar H1Z2Z2-K tem design mais avançado, oferecendo maior desempenho elétrico e mecânico, adequado para ambientes de aplicação mais exigentes. Por outro lado, O cabo solar PV1-F é principalmente vantajoso em termos de custo-benefício, adequado para a maioria dos sistemas fotovoltaicos convencionais.

Para considerações de custo-benefício, O cabo PV1-F pode ser usado para conexões em série entre módulos fotovoltaicos e conexões paralelas de strings a caixas de distribuição CC. Enquanto isso, O cabo H1Z2Z2-K pode ser usado para conexões entre caixas de distribuição e inversores, bem como para conexões de corrente contínua em grandes inversores.

H1Z2Z2-K cables can be used for both DC circuits (1.5kV) and AC circuits (1.0/1.0kV). In photovoltaic power generation systems, their specific application differences are as follows:

For DC Applications:

• Series connection between photovoltaic modules
• Parallel connection between strings
• Parallel connection from strings to DC distribution boxes
• Connection from DC distribution boxes to inverters

For AC Applications:

• Connection from inverters to step-up transformers
• Connection from step-up transformers to distribution devices
• Connection from distribution devices to the grid or users

In the photovoltaic industry, using red and black cables has become a widely accepted method of identification. Their primary purpose is to distinguish between positive and negative poles. Em circuitos CC, typically, red solar wires indicate the positive pole of the current, while black solar wires indicate the negative pole. This color differentiation helps quickly identify the polarity of photovoltaic connections during the installation and maintenance of solar systems, thus preventing wiring errors.

Once the solar connectors are prepared, solar panels can be connected in parallel, series, or hybrid configurations.

In parallel connection, the positive and negative terminals of multiple photovoltaic panels are connected separately. This cabling method increases the overall current output of the system, suitable for scenarios requiring higher current output.

In series connection, the positive and negative terminals of multiple photovoltaic panels are connected sequentially. This cabling method increases the overall voltage output of the system, suitable for scenarios requiring higher voltage output.

Hybrid connection combines parallel and series wiring methods. It involves connecting some photovoltaic panels in parallel and then connecting these parallel combinations in series. Hybrid wiring methods allow flexible combinations to meet the energy needs of different scenarios.

ZMS can provide various universal MC connectors separately, which are perfectly compatible with MC4 connectors. Adicionalmente, we can also provide solar panel extension cables with pre-made connectors to meet your different requirements.