5×8 is for the business using the systems.
Critical systems support the most crucial aspects of a true business function. “Normal business hours” means the time to do bill-paying work by using those systems.
About
Nathan Whaley is a provider of critical infrastructure systems from early design all the way through startup, commissioning, and on-going maintenance.
In his words
Nathan is a husband to the most amazing wife ever, and dad to 3 of the coolest kids on the planet. He likes playing the drums, almost anything related to the “outdoors”, and just enjoying life while living just a bit outside the lines of normal.
If you need help with an upcoming project, give him a shout.
He built nathanwhaley.blog for two reasons: a simple platform detailing the projects and services he helps clients with, and a stage to discuss topics that hopefully interest others.
7×24
From his post Sometimes weekends are for work!
Critical systems support the most crucial aspects of a true business function. “Normal business hours” means the time to do bill-paying work by using those systems.
For the crews that support these facilities, “normal hours” are often “off hours.” In the critical world that is 7×24. From scheduled maintenance to equipment installation and commissioning, game-time often begins when everyone else is going home.
If you have an off-hour project that needs to get done right, and before your business opens back up Monday morning, contact him. He will figure out a way to help.
Jobsites
Working in critical facilities has its own challenges. From his safety notes: