Cấp nước & Phân phốiCâu 52 / 360
PEX tubing is being routed through a framing environment where it could be exposed to sunlight through a skylight for extended periods. What limitation applies?
a.PEX has no exposure limits
b.PEX may be left in direct sun indefinitely
c.PEX must be painted black
d.PEX has a limited UV exposure rating and must be protected from prolonged sunlight per the manufacturer listing
Giải thích
PEX has a limited ultraviolet (UV) exposure rating and must be protected from prolonged sunlight in accordance with its listing, or it can degrade. Claiming no limits, indefinite sun exposure, or that painting it black solves the issue all conflict with the UV limitation.
Trích dẫn luật: 2022 California Plumbing Code (CPC) §604.1Luyện miễn phí toàn bộ 360 câu hỏi — không cần đăng ký.
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