When indicated in Section 620.21, fiber optic conductors and cables located in elevator shafts... must be installed in rigid metallic conduit, intermediate metallic conduit, or metallic electrical tubing, rigid nonmetallic conduit, or raceways, or must be type MC, MI, or AC cables... unless otherwise permitted in Sections 620.21(A) through (C), as indicated below.
What type of conductors are being referred to? Electrical, communication, or control; which ones?
What type of conductors are being referred to? Electrical, communication, or control; which ones?