NEC Article 705: Interconnected Electric Power Production Sources

Vocabulary flashcards covering key definitions, technical requirements, and safety concepts from NEC Article 705 regarding interconnected power production sources.

NEC Article 705

The National Electrical Code article covering the interconnection of electric power production sources with other sources.

Interconnected Power Production System

An electric power production system, such as a photovoltaic system, that operates connected to a premises electrical system.

Interactive Inverter

An inverter intended to convert power into a form compatible with the interconnected system.

Source Coordination

The coordination of an interconnected source with the premises wiring system to ensure compatible and safe operation.

Point of Connection

The point identifying where the power source connects to the premises electrical system.

Supply-Side Connection

A source connection made on the supply side of the service disconnect, where permitted.

Load-Side Connection

A source connection made on the load side of the service disconnect to premises wiring.

Connection Location Importance

A critical design factor because it affects conductor sizing, protection, equipment ratings, and permitted methods.

Overcurrent Protection (Interconnected System)

Protective equipment whose primary function is to protect conductors and equipment from damaging overcurrent.

Listed or Identified Equipment

Equipment designated to establish suitability for the specific application and installation conditions.

Disconnecting Means (Interconnected Source)

A required mechanism that provides a means to isolate the power source when required.

Disconnecting Means Selection Criteria

Key factors for selection including rating, suitability, accessibility, and required disconnecting function.

Warning or Directory Markings

Markings required where an interconnected source is present to alert personnel that additional sources may energize the system.

Post-Utility Disconnection Safety Concern

The hazard that conductors may remain energized by an alternate source even after the utility supply has been disconnected.

Authority Having Jurisdiction (AHJ)

The organization, office, or individual responsible for enforcing adopted Code requirements and reviewing compliance.

Power Control System (PCS)

A system capable of managing power flow or limiting current to stay within specified limits to satisfy applicable Code provisions.

Panelboard Connection Evaluation

The required review of bus rating, connection method, overcurrent protection, and applicable loading limits when connecting a source to a panelboard.

Manufacturer Instructions

Equipment documentation providing equipment-specific requirements relevant to listing and Code compliance.

Multiple Interconnected Sources

A configuration requiring evaluation of all sources' combined contribution and connection arrangement under Article 705.

Pre-Energization Verification

The comprehensive verification of installation, protection, disconnects, markings, and required approvals before energizing an interconnected power system.