You Do Need power plug adapter while traveling from Burkina Faso to South Sudan.

Here is Why You Need An Adapter

The outlet and plug type used in South Sudan are C and D and in Burkina Faso are C and E. This is how they look like.

Burkina Faso

In Burkina Faso, outlets of type C and E are in use.

Type C

Type E

South Sudan

In South Sudan, outlets of type C and D are in use.

Type C

Type D