NECA NEIS 331
Standard for Building and Service Entrance Grounding and Bonding
|Publication Date:||1 January 2009|
This standard describes installation procedures for building and service entrance grounding as well as building interior bonding and grounding. It is intended to define what is meant by installing equipment in a "neat and workmanlike manner" as required by the National Electrical Code (NEC), Section 110.12, and in accordance with "accepted good practice" as required by National Electrical Safety Code, Rule 012.C.The installations described in this standard should be performed by qualified persons. The term"qualified person" is defined in Article 100 of the NEC.
All information in this standard is intended to conform to the National Electrical Code® (ANSI/NFPA 70) and National Electrical Safety Code (ANSI/IEEE C2). Installers should always follow the NEC, NESC, applicable state and local codes, manufacturer's instructions, and project specifications when installing building grounding and bonding systems.
Equipment and Systems Included
The following are included in this publication:
• Electrical service grounding
• Building exterior grounds
• Building interior bonding
• Equipment grounding and bonding
Equipment and Systems Excluded
Lightning protection systems are specifically excluded from this publication. Interconnections between lightning protection systems and other grounding and bonding systems are necessary and briefly described in Section 3.8 of this standard.
Regulatory and Other Requirements
a) All information in this publication is intended to conform to the National Electrical Code (ANSI/NFPA 70 and National Electrical Safety Code), (ANSI/IEEE C2). Installers should always follow the NEC, NESC, applicable federal, state and local codes, manufacturer's installation instructions, and contract documents when installing building grounding and bonding systems.
b) General requirements for installing electrical products and systems are described in NECA 1, Standard for GoodWorkmanship in Electrical Construction (ANSI). Other National Electrical Installation Standards (NEIS) provide additional guidance for installing particular types of electrical products and systems. A complete list of NEIS is provided in Annex