To those not yet indoctrinated, commercial construction (CC) can appear daunting. Suddenly there are architects, engineers, liquidated damages, bonding, and a cast of wealthy business clients with short attention spans and scary-sounding law firms on speed-dial.
UL has several tools available to de-mystify hazardous locations. UL has been certifying hazardous location equipment for over 100 years, and has launched a smart device application explaining the different hazardous locations classification systems.
A firm understanding of the basic principles associated with series and parallel circuits is a sufficient background to begin an investigation of any single-source DC network having a combination of series and parallel elements or branches.