What is the requirement for outlet devices on branch circuits?

The requirement for outlet devices on branch circuits is that they must have an ampere rating greater than or equal to the load being served. This ensures safety and avoids overheating or failure of the devices due to excessive current. If the outlet device carries a load that exceeds its ampere rating, it can lead to dangerous situations, such as electrical fires or equipment damage. By having a rating that meets or exceeds the load, the device is suitable for safe operation without the risk of failure during typical usage conditions.

Understanding this requirement is crucial for electrical safety in construction and an integral part of OSHA standards. Properly rated outlet devices contribute to the overall electrical safety and reliability of the electrical system on construction sites.