Location Rules for Sign Lighting Systems

Signs and outline lighting systems shall be installed so that adjacent combustible materials are not subjected to temperatures in excess of _____.

a) 60°C
b) 75°C
c) 90°C
d) 105°C

See answer and applicable Code reference

The correct answer is: c) 90°C

The Code requirements for electric signs and outline lighting systems can be found in Art. 600 of the 2011 NEC. As noted in Sec. 600.9(C), "Signs an

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