1)Introduction

This guideline is important for the ACBs to carry its rated thermal current with permissible and safe temperature rise. The ACB with its associated connections must also be able to withstand the stresses arising out of short circuit. Termination can be broadly divided into the following aspects. Adhering to the norms can go a long way in trouble free operation of the system.



Here we are going to discuss following points in required details.

A. Conductivity

B. Selection of Bus bars

C. Termination

D. Heat Dissipation

E. Ventilation

F. Support

G. Clearance / Creepage distance

H. Corrosive atmosphere

I.Heating of busbars



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