Procedure for Raising Fire Protection System Isolation RequestsAll attempts must be made to avoid the isolation and impairment of fire protection systems. Where a fire protection system isolation is unavoidable, if possible only one fire protection system should be impaired at any given time to ensure the property has some form of fire protection system in place at all times.Once it has been determined that the isolation and/ or impairment of a fire protection system is unavoidable, the following process must be followed.