Where should service heads on raceways or service entrance cables be located relative to the point of attachment?

The proper placement of service heads on raceways or service entrance cables is crucial for ensuring safety and compliance with the National Electrical Code (NEC). The service head should be positioned above the point of attachment to facilitate effective drainage of water and prevent moisture accumulation, which can lead to electrical hazards. By locating the service head above the point of attachment, any potential rainwater that comes into contact with the service equipment will run off rather than pooling, thus protecting the integrity of the electrical connection and reducing the risk of corrosion or short circuits.

This requirement is also informed by the need for clearances to avoid any obstruction and to meet guidelines related to the weather-tightness of the installation. Elevating the service head helps provide a more reliable and resilient electrical service, complying with safety standards set out by the NEC.