Answer Description
Best practices dictate that administrators should have a secondary account with administrator privileges, separate from their main user account. This leads to improved security due to maintaining separation of duties and minimizes damage done if user accounts are compromised.
Wikipedia
Separation of duties (SoD also known as Segregation of Duties) is the concept of having more than one person required to complete a task In business the separation by sharing of more than one individual in one single task is an internal control intended to prevent fraud and error The concept is alternatively called segregation of duties or, in the political realm, separation of powers In democracies, the separation of legislation from administration serves a similar purpose The concept is addressed in technical systems and in information technology equivalently and generally addressed as redundancy
Separation_of_duties - Wikipedia, the free encyclopedia