What are the advantages ring connection of socket outlets?

Ring connection of socket outlets? Have no clue what you mean by this. Please rephrase the question in terms that are understandable. I will venture to guess as to what you mean. If you mean what is the advantage to connecting more than one outlet on a circuit the answer is to save wire and to allow the installation of over 100 outlets in a home on maybe just 10 circuits depending on the use of the outlets.