Junction Box Connectors: Task Group 10

Task Group 10 is focused on durability issues related to junction- box connectors.

Both manufacturing and deployment issues are included for internal and external junction-box wiring and connector parts, which are assembled in the factory. The group will examine evidence for and initiate tests on durability and reliability of solder versus pressure contact joints, and susceptibility to mechanical or corrosive failure mechanism. Junction box connectors the plastic wall of the junction box, and are held in place by threaded nuts. Plastic wall materials need to retain their strength against UV exposure. The threaded connectors should keep the joints rigid and interior sealed to humidity and dust, and protect the connector joints against reasonable external mechanical forces during installation of modules and wiring. Standards and procedures are needed at the times of manufacture, installation, and for field repair/retrofit of junction boxes and associated wiring/connectors.

Progress Update

This group was formed in the summer of 2013 and is looking for volunteers. Task Group 10 has conducted a survey to prioritize efforts, and is now reviewing standards already in place for their applicability to durability studies.

Task Leaders

Juris Kalejs
Tony Tang — Canadian Solar, representing China
Shilin Fan — China General Certification Center

Additional leaders are welcome.

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Supporting Organizations

United States Department of Energy (DOE)
European Commission DG JRC
SEMI PV Group

Advisory Board