§236.9. Selection of circuits through indicating or annunciating instruments.
49 C.F.R. § 236.9
Signal control and electric locking circuits shall not be selected through the contacts of instruments designed primarily for indicating or annunciating purposes in which an indicating element attached to the armature is arranged so that it can in itself cause improper operation of the armature.
Notes, amendments, and revision history
Authority
Authority: 49 U.S.C. 20102-20103, 20107, 20133, 20141, 20157, 20301-20303, 20306, 20501-20505, 20701-20703, 21301-21302, 21304; 28 U.S.C. 2461 note; and 49 CFR 1.89.
Source
Source: 33 FR 19684, Dec. 25, 1968, unless otherwise noted.