You Do Need power plug adapter while traveling from Myanmar (Burma) 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 Myanmar (Burma) are A, C, D, G and I. This is how they look like.

Myanmar (Burma)

In Myanmar (Burma), outlets of type A, C, D, G and I are in use.

Type A

Type C

Type D

Type G

Type I

South Sudan

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

Type C

Type D