(1) 25 Kv Danger Board Enamelled Type As Per Rdso S Drg. No. Eti/Ohe/P/7531, Mod - C & Rdso S Spec. No. - Eti/Ohe/33 ( 8/85 ). (2) Staff Caution Board Retro Type As Per Rdso Specification No. Eti/Ohe/33A (12/97) Rev.-8 (11-2012) And Drg. No. Eti/Ohe/P/7531 Mod-C (3) Signal Caution Board For Switch Off Power Dj Off At Neutral Section For Electric Engine (Size 800X400 Mm) Rdso Drg. No. Re/33/348,Mod. B Spec. No. Eti/Ohe/33A (12/97) (4) Public Caution Board Retro Reflective Type As Per Rdso Speci