Ok, so I piped some low volt landscape lighting transformers, 3 of them to be exact 300 watt 120 volt. So here is my code question should I have treated these like any other transformer and used some sort of flex instead of emt for the vibrations? I never thought about it till it was done and looked at it and thought "whoops!" Is this installation a code violation? Or a probable service call?

Thanks in aadvance,
H20