NO : Although companies and employers have a legal duty to ensure that any electrical equipment used must be safe and maintained. There are many laws that encompass the use of electrical equipment, PAT testing is the easiest and most cost efficient way of compliance.
The list includes, but is not limited to :
Health and Safety at work act 1974
Provision and use of work equipment regulations 1998
Workplace (Health , Safety and Welfare) regulations 1992
Management of Health and Safety at work regulations 1999
Electricity at work regulations 1989
The housing act 2004 (England & Wales)