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Power Distribution The power distribution category of NEIS provides a collection of installation standards that covers performance and quality aspects of installing electrical power distribution equipment such as panelboards, switchboards, and transformers. While the NEC provides the minimum requirements for safe installations of this type of equipment, the NEIS take users into another essential dimension of electrical equipment installation. One important aspect of this category is that it typically includes installation, performance, and maintenance of such equipment. A recent important addition to this category provides essential industry information about selective coordination of overcurrent protection in systems design.
Green This category of NEIS is populated with installation standards that address installations of renewable energy systems such as photovoltaic (PV) systems, wind generation systems, and a specific NEIS that provides the essentials for energy management, and addressing demand response concerns. With the increased efforts to develop a “Smart Grid” NECA has developed this category to provide specific quality and performance standards that are an integral part of going “Green.”
Lighting The lighting category of NEIS provides a nice assortment of NEIS that address specific criteria related to installing lighting equipment and systems. Lighting technology is on a fast pace to incorporate new technology such as fiber optics and light-emitting diode systems into everyday applications. These NEIS go beyond the safety installation rules in the NEC and compliment them with applying effective lighting designs for specific and unique applications in the field. Light management and controlling light pollution is becoming more important in design as well as use of sophisticated lighting control systems to reduce energy consumption. This category of NEIS provides many of the essential elements of installing effective, energy efficient lighting for every application, including high-mast and roadway lighting systems.
Utilization Equipment There a few specific NEIS that cover electrical utilization equipment. Utilization equipment is described in the NEC as equipment that utilizes electrical energy for electronic, chemical, electromechanical, heating, or similar purposes. The topics addressed in this category include installations of electric vehicle supply equipment (EVSE) or electric vehicle charging equipment, heat tracing equipment, and electric motors. The information provided in these NEIS is essential and is over and above that in the NEC as it relates to specific installation requirements, performance, and maintenance of such equipment.
Limited Energy The limited energy and communications systems rules in the NEC have all recently included specific rules that require this wiring to be installed in a “neat and workmanlike manner.” This category provides necessary information to produce an installation that lives up to that industry rule. These NEIS deal with installation techniques and methods to install limited energy systems such as fire alarm equipment and wiring, telecommunications systems (equipment and cabling), and fiber optic wiring and networks. A valuable addition to this NEIS category provides essential information about telecommunications bonding and grounding planning and installation methods for commercial buildings It specifies aspects of planning and installation of telecommunications bonding and grounding systems within commercial buildings and is intended to enhance the planning, specification and layout of effective communications grounding and bonding systems.
Wiring Methods This category of NEIS is well-populated with valuable installation standards that address all types of conduit, tubing, and cable installations, in addition to cable tray. This category of NEIS is essential in that it addresses the quality and performance aspects of the wiring of electrical systems. The NEC rules for installing branch circuits, feeders, and service conductors all provide safety aspects necessary for the installation, but do not address the quality of the installation or how it should look once completed. The quality of the installation (specifically the wiring) is a characteristic that is unmistakable, and remains in the minds of customers long after the installation is first installed. Whether this wiring is visible or concealed in the final product, this category of NEIS provides the necessary information to keep a contractor’s quality above average. This NEIS category delivers the goods to assist in achieving the type of wiring system installation that meets and exceeds even the most demanding customer expectations.
General This category of National Electrical Installation Standards (NEIS) includes the flagship document NECA-1 Standard for Good Workmanship in Electrical Construction. This is the industry standard that was inspired by the need to standardize what is meant by electrical workmanship. This category includes NEIS that are general in nature, yet provide the key concepts behind what constitutes “Good Workmanship” in the electrical industry and why it is important. The other standards in this group deal with support for electrical design, engineering, blueprint development and the essentials of commissioning building electrical systems.
Standards in Development NECA has a fairly comprehensive system of determining development of new National Electrical Installation Standards (NEIS). This decision involves careful analysis of industry needs and valuable input from the industry through an “Industry Review” process. This is the stage of NEIS development that several industry professionals provide input and confirm that NECA’s initiatives and intentions are right on point and timely. The existing NEIS also have to be revised or reaffirmed on a 5-year cycle to remain compliant with the requirements of the American National Standards Institute (ANSI).