Would like to see if I can get a response from NFPA as per 330.30 (C) Unless otherwise provided, cables shall be supported at intervals not exceeding 1.8m (6ft)
Horizontal runs of Type MC cable installed in wooden or metal framing members or similar supporting means shall be considered supported or secured where such supports does not exceed 1.8m (6ft).
If MC cable is just laying on top of wood ceiling joists which is part of a truss assembly does the MC need to be secured every 6FT ?
If the MC is being ran through metal truss assemblies does the MC need to be secured every 6FT.
Both instances the trusses or less than 6FT apart