What is required when switches in a four-gang box have voltage exceeding 300 volts between adjacent switches?

When switches in a four-gang box have voltages exceeding 300 volts between adjacent switches, it is essential to have identified barriers between the devices. This requirement is in place to ensure safety and prevent electrical arcing or shorts between the switches, which could pose significant hazards such as electric shock or fire. Identified barriers help to insulate and separate the components to maintain safe operation and minimize the risk of accidental contact with potentially dangerous voltages.

This safety standard is part of electrical codes that aim to protect both people and property. It underscores the importance of implementing proper separation and isolation measures in electrical installations, especially where high voltage is involved. Such barriers also facilitate maintenance and reduce the risk of equipment failure due to environmental factors or operational mishaps. Consequently, this requirement is vital for maintaining safe electrical practices in facilities where such high-voltage switches are utilized.