5 Questions
What is the purpose of the Commutator Handle in a double line block instrument?
To operate the block instrument
What is the frequency of periodical overhauling required for double line block instruments?
Once in 7 years
What is the current rating for the line current used in double line block instruments?
25mA
How often is simple regular maintenance required for double line block instruments?
Once in 15 days
What type of block instrument is suitable for both Non-RE and RE sections?
Double line block instrument
Learn about the different types of double line block instruments used in railway signaling systems. Understand their design, maintenance requirements, and manufacturers.
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