Sea-Shield: Solarmodule für Salzwasserumgebungen

Dual-POE-Verkapselung

Sea-Shield verwendet eine Dual-POE-Verkapselung auf beiden Seiten der Solarzellen, um die Feuchtigkeitsdurchdringung zu reduzieren und die interne elektrische Struktur zu schützen. Die hohe elektrische Resistivität des Materials trägt auch dazu bei, potentialinduzierte Degradation (PID) zu begrenzen und eine zuverlässige Energieerzeugung in feuchten Meeresumgebungen zu unterstützen.

Wasserdampfdurchlässigkeitsrate (WVTR), g/m²/Tag

Conventional EVA

34.6

Dual-POE

8.2

Volumenresistivität, EVA = 1x

Conventional EVA

Dual-POE

2.5x

In LONGi's material testing

The dual-POE encapsulant demonstrated approximately 76% lower water vapour transmission and 2.5 times higher volume resistivity compared with conventional EVA.

Marine-resistant glass

Sea-Shield features specially developed corrosion-resistant glass with a dense protective barrier designed to withstand prolonged saltwater exposure. The protective surface helps limit glass corrosion and preserve light transmission in demanding marine environments.

~2%

higher light transmittance than conventional glass

In LONGi's comparative testing

Sea-Shield glass maintained approximately 2% higher light transmittance than conventional glass during exposure to a 5% sodium chloride solution at 35°C.

Corrosion-resistant aluminium frame

Sea-Shield features a corrosion-resistant aluminium frame with a protective oxide layer approximately 50% thicker than that of a conventional frame. The reinforced surface protection helps reduce corrosion caused by salt spray, supporting long-term frame durability in marine environments.

Protective oxide layer, relative thickness

Conventional frame

1.0x

Sea-Shield frame

about 1.5x

In LONGi's comparative testing

The Sea-Shield frame showed no visible surface abnormalities after 60 days of salt mist exposure, while the conventional frame exhibited substantial surface corrosion. The Sea-Shield frame also passed a separate 192-hour CASS corrosion test.

Enhanced junction box and connector sealing

Sea-Shield features an enhanced sealing system for its junction box and connectors, including silicone-rubber O-rings and additional waterproof and dustproof stoppers. These protective elements help prevent seawater ingress and reduce corrosion risks at sensitive electrical connections.

100%

aller getesteten Anschlusskästen und Verbinder bestanden die Isolationswiderstandsprüfung

Dauer der Salzwasser-Immersionstest

0 h1,560 h3,120 h (130 days)

Im LONGi Salzwasser-Immersionstest

100 % der getesteten Sea-Shield Anschlusskästen und Verbinder bestanden die Isolationswiderstandsprüfung nach 3.120 Stunden (130 Tagen). Konventionelle Referenzprodukte zeigten unter den angegebenen Testbedingungen deutlich höhere Ausfallraten.

Schematisches Modell. Schichtabstände und Steckverbindergrößen sind zur besseren Veranschaulichung übertrieben und nicht maßstabsgetreu. Rahmenkontur aus LONGi CAD (2382 x 1134 x 30 mm); Anschlusskästen und Verbinder modelliert nach LONGi-Produkt-Renderings.