Scaffold Resource uses products chosen specifically to meet the unique requirements of each job. When dealing with a structure as historic and noteworthy as the Mid-Hudson Bridge, Scaffold Resource made sure to protect the bridge itself as well as the travelers below.
GFCI (ground-fault circuit-interrupter) protection is required for many receptacles (outlets) throughout the house and outdoors. This protection can be provided either by a GFCI breaker or GFCI receptacles. There are advantages and disadvantages to each approach, depending on the installation.
A GFCI works by measuring the current leaving one side of a power source (the so-called live or hot wire), and comparing it to current returning on the other (the neutral side). If they are not equal, then some of the current must be leaking in an unwanted way, and the GFCI shuts the power off.