Processing Machinery
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PPO Photovoltaic Electrical Box Application
Fenómeno do problema
[Problem Phenomenon] Photovoltaic junction boxes are exposed to outdoor high temperature for a long time, and the material ages and fails
Análise das causas
PPO heat-resistant and weather-resistant modified grades, electrical insulation and dimensional stability are suitable for photovoltaic junction boxes; low water absorption ensures insulation in wet state; flame-retardant grades meet electrical safety; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solução
Select weather-resistant flame-retardant PPO grades for photovoltaic boxes; finalize the type after humid-heat aging verification; utilize dimensional stability for sealing fit; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
PPO for photovoltaic junction boxes has three advantages: weather resistance, insulation and low water absorption; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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