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NECA NEIS 202 (Complete Document)
Revision / Edition: 13    Chg:    Date: 00/00/13   Abbreviations Definitions
Active, Most Current
STANDARD FOR INSTALLING AND MAINTAINING INDUSTRIAL HEAT TRACING SYSTEMS
Published By:National Electrical Contractors Association (NECA)
Page Count:46
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Description / Abstract Back to Top
Products and Applications Included

This standard describes procedures for the installation, testing, and documentation of electrical freeze protection and process heat tracing systems. Heat tracing cable types covered by this publication include: self-regulating, constant wattage, and zone heating cables and mineral insulated (MI) heating cables (see Figures 1.1(a)-1.1(e) below and on the following page).

System components used with these types of heat tracing cables included power transformers, control panels, temperature sensors, temperature controllers, contactors, circuit breakers, enclosures, conduit, wire, and all necessary auxiliary equipment and controls.

Products and Applications Excluded

The following types of heat tracing systems are specifically excluded from this publication:

1. Skin effect heating systems

2. Impedance heating systems

3. Inductance heating systems

NOTE: ANSI/IEEE 844-2000, Recommended Practice for Electrical Impedance, Induction, and Skin Effect Heating of Pipelines and Vessels provides information about installing the above mentioned systems in list items 1, 2, and 3.

Related Construction Materials

In addition to the electrical heat tracing components described in 1.1, this publication includes related construction materials including labels, adhesive tapes, attachment wire and components, and thermal insulation and cladding.

Regulatory and Other Requirements

a) All information in this publication is intended to conform to the National Electrical Code (ANSI/NFPA 70), and, in general, the typical recommendations of electrical heat tracing manufacturers. All work shall be performed using safety-related work practices in accordance with NFPA 70E, Standard for Electrical Safety in the Workplace. Installers should always follow the NEC, applicable state and local codes, manufacturer's instructions when installing electrical heat tracing. Articles 427 (ordinary areas) and 500 through 516 (Classified areas) of the NEC govern the installation of electrical heat tracing systems. IEEE 515 and 515.1 are accepted industry standards that also contain useful information about installing electrical heat tracing systems.

b) Only qualified persons familiar with the construction and installation of electrical heat tracing systems should install heat-tracing systems. Administrative functions and other tasks can be performed under the supervision of a qualified person. All work should be performed in accordance with NFPA 70E, Standard for Electrical Safety in the Workplace.

c) General requirements for installing electrical products and systems are described in NECA 1, Standard for Good Workmanship in Electrical Construction (ANSI). Other National Electrical Installation Standards provide additional guidance for installing particular types of electrical products and systems. A complete list of NEIS is provided in Annex B.
Additional Supplemental Documents

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