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HOME » MCT Transit Sealing System » TST seal MCT Cable Gland Sealing System: A Breakthrough Solution for Photovoltaic Outdoor Protection Challenges

TST seal MCT Cable Gland Sealing System: A Breakthrough Solution for Photovoltaic Outdoor Protection Challenges

--- 2026-01-21 15:16:44 --- Published by: TST Seal ---
The TSC-M-1/4 Series sealed modules are 15mm in length and can be easily adapted to cables and pipes of different sizes. They can also be used as backup redundancy to meet future capacity needs.
The TSC-M-1/4 Series sealed modules are 15mm in length and can be easily adapted to cables and pipes of different sizes. They can also be used as backup redundancy to meet future capacity needs.

As a core pillar of my country’s clean energy industry, photovoltaic power plants have been widely established in various complex regions such as deserts, plateaus, coastal areas, and mountainous regions, providing solid support for the advancement of the “dual carbon” goals. However, behind the stable operation of photovoltaic power plants, the cables and other parts of core equipment are subjected to multiple challenges such as strong ultraviolet radiation, extreme temperature differences, wind and sand erosion, and high humidity corrosion, becoming a weak link that restricts equipment lifespan and operational stability.

 

The harsh environments in different regions pose differentiated challenges to cable gland protection. In desert and plateau areas, strong ultraviolet radiation accelerates the aging and cracking of traditional sealing components, directly leading to sealing failure; extreme high temperatures not only further exacerbate the aging of sealing components but also cause heat accumulation inside the equipment, affecting operational efficiency; frequent windy and sandy weather allows dust to penetrate into the equipment through the sealing gaps, causing component wear, short circuits, and other malfunctions. In coastal and mountainous areas, high humidity and rainwater immersion easily lead to moisture penetration, which in turn causes aging of the cable insulation layer and equipment corrosion, posing safety hazards to the power plant’s operation.

 

Traditional sealing solutions mostly rely on basic products such as ordinary rubber gaskets and sealants, which have limited protection performance and short service life, requiring frequent shutdowns for replacement. This not only increases labor costs but also affects the power generation of the power plant due to downtime, resulting in high operation and maintenance costs. For photovoltaic power plant operators, upgrading the protection capabilities of cable gland areas, extending equipment service life, and reducing operation and maintenance costs have become key issues for improving project operational efficiency. The TST seal MCT cable gland sealing system, with its strong UV resistance and anti-aging core advantages, provides a long-term solution for outdoor protection of photovoltaic power plants.

 

Specialized Optimization of Weather Resistance, Adapting to All Climate Challenges

 

To address the complex outdoor environment of photovoltaic power plants, the TST seal MCT penetration sealing system has undergone specialized upgrades in terms of UV resistance and aging resistance. The system utilizes a composite rubber material with added special UV stabilizers and anti-aging agents. After modification with a special formula, it possesses excellent resistance to UV degradation and aging.

In response to the complex outdoor environment of photovoltaic power plants, the TST seal MCT cable gland sealing system has undergone specialized upgrades in UV resistance and anti-aging performance. The system uses composite rubber materials with added special UV stabilizers and anti-aging agents, which, after special formula modification, possess excellent resistance to UV erosion and aging. Tested by authoritative institutions, this material maintains stable performance under prolonged exposure to strong ultraviolet (UV) radiation outdoors, resisting aging and cracking. It can easily withstand the intense sunlight in desert and plateau regions, significantly extending the lifespan of sealing components.

At the same time, the material also exhibits excellent high and low-temperature resistance, adapting to a wide range of extreme temperature environments. Whether it’s the high temperatures and intense sunlight of desert regions or the low temperatures and severe cold of plateau areas, it consistently maintains excellent elasticity and sealing properties, without performance degradation due to sudden temperature changes, perfectly suited for photovoltaic power plant scenarios in different climate zones of my country.

 

Dustproof and Waterproof, Building a Solid Safety Barrier for Equipment

 

In terms of core dustproof and waterproof protection, the TST seal MCT cable gland sealing system utilizes a multi-layer composite sealing structure design to comprehensively prevent sand, dust, rain, and moisture from entering the equipment through the cable gland. This design effectively avoids problems such as sand abrasion of equipment components and moisture-induced aging of cable insulation, significantly reducing the failure rate of core equipment such as inverters and combiner boxes, building a solid safety barrier for the long-term stable operation of the equipment.

 

Modular and Convenient Design, Reducing Costs and Increasing Efficiency

 

Considering the characteristics of dispersed cable distribution, numerous cable glands, and complex installation environments in photovoltaic power plants, the TST seal MCT cable gland sealing system adopts a lightweight modular design. Each sealing module is compact and lightweight, greatly facilitating transportation and on-site installation. Construction personnel only need simple tools and no professional technical training to quickly complete the sealing work for a single cable gland. The installation efficiency is significantly improved compared to traditional solutions, efficiently meeting the large-scale sealing deployment needs of photovoltaic power plants.

 

In terms of cable adaptability, the system features peelable variable-diameter technology, which can flexibly adapt to various cable specifications. Whether it’s the DC cables of photovoltaic modules or the AC cables of inverters and combiner boxes, precise sealing can be achieved without the need for customized sealing components, perfectly covering the multi-specification cable gland requirements of photovoltaic power plants. In terms of later maintenance, the modular design supports the independent replacement of individual sealing modules without disassembling the entire sealing system. Maintenance personnel can quickly replace faulty modules, significantly reducing maintenance costs and equipment downtime. The TST seal MCT penetration sealing system comprehensively covers various typical scenarios for photovoltaic power plants, including deserts, plateaus, and coastal areas.  Combined with long-term verification of its core performance characteristics such as UV resistance, aging resistance, dustproof and waterproof capabilities, this system effectively reduces the failure rate of photovoltaic equipment, providing a solid guarantee for the long-term stable operation and improved operational efficiency of photovoltaic power plants, and injecting strong momentum into the high-quality development of my country’s clean energy industry.

 

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