Question 1: Do you design or build machine shops, and do you install industrial machinery?
Question 2: How are electricians installing these systems?
NFPA 79, Electrical Standard for Industrial Machinery 2002 Edition
Chapter 1 Administration
1.1.1 The provisions of this standard shall apply to the
electrical/electronic equipment, apparatus, or systems of industrial machines operating from a nominal voltage of 600
volts or less, and commencing at the point of connection of
the supply to the electrical equipment of the machine.
1.1.2 This standard shall not include the additional requirements
for machines intended for use in hazardous (classified)
*Annex A Explanatory Material
Annex A is not a part of the requirements of this NFPA document
but is included for informational purposes only. This annex contains explanatory material, numbered to correspond with the applicable text paragraphs.
A.1.1 In this standard, the term electrical includes both electrical and electronic equipment. Requirements that apply only to electronic equipment are so identified.
The general terms machine and machinery as used throughout
this standard mean industrial machinery. See Annex C for
examples of industrial machines covered by this standard.
Annex C, Examples of Industrial Machines Covered by NFPA 79
This annex is not a part of the requirements of this NFPA document but is included for informational purposes only.
C.1 Machine Tools. Examples of machine tools are as follows:
(1) Metal cutting
(2) Metal forming
C.2 Plastics Machinery. Examples of plastics machinery are as
(1) Injection molding machines
(2) Extrusion machinery
(3) Blow molding machines
(4) Specialized processing machines
(5) Thermoset molding machines
(6) Size reduction equipment
C.3 Wood Machinery. Examples of wood machinery are as
(1) Woodworking machinery
(2) Laminating machinery
(3) Sawmill machines
C.4 Assembly Machines.
C.5 Material-Handling Machines. Examples of material handling
machines are as follows:
(1) Industrial robots
(2) Transfer machines
(3) Sortation machines
C.6 Inspection/Testing Machines. Examples of inspection/
testing machines are as follows:
(1) Coordinate measuring machines
(2) In-process gauging machines