FOREWORD
Each Part/Section of the National Electrical Code of India covers the requirements related to electrical installations in specific occupancies. The fundamental and general principles governing electrical installation practice together with common aspects applicable to all types of installations has been brought out in a separate Part in order to
serve as a reference document.
Effort has been made to make this part self-contained, so that users of the Code can derive utmost advantage in
using it for application in the field even for occupancies not explicitly covered by the scope of subsequent Parts
of the Code. Efforts have also been made to ensure that all the relevant details required for the understanding
of the Code are available to the extent possible within Part 1 and effort has been made to keep the references of
individual standards to the minimum.
The details enumerated in this Part are generally applicable to all types of occupancies and are to be read as
modified or supplemented with the information provided in the relevant Parts of the Code.
1 SCOPE
This section of the code (Part 1/Sec 1) describes the scope of the National Electrical Code of India.
2 REFERENCES
The National Electrical Code of India takes into account the stipulations in several Indian Standards dealing with
the various aspects related to electrical installation practices. Several product standards also exist, and compliance
with relevant Indian Standards is desirable. It is therefore recommended that individual Parts/Sections of the Code
should be read in conjunction with the relevant Indian Standards. List of such Indian Standards is given at relevant
Part/Section of the Code.
At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties
to agreements based on this standard are encouraged to investigate the possibility of applying the most recent
editions of the standards.
3 SCOPE OF THE NATIONAL ELECTRICAL CODE OF INDIA
3.1 The National Electrical Code of India covers the following:
a) Standard good practices for selection of various items of electrical equipment forming part of electrical
installation;
b) Recommendations concerning safety and quality of the wiring in electrical installations of buildings or
industrial structures, promoting compatibility between such recommendations and those concerning the
equipment installed;
c) General safety procedures and practices in electrical work; and
d) Additional precautions to be taken for use of electrical equipment for special environmental conditions
like explosive and active atmosphere.
3.2 The Code applies to electrical installations, such as those in:
a) Standby/emergency generating plants and building substations;
b) Domestic dwellings;
c) Office buildings, shopping and commercial centres and institutions;
d) Recreation and other public premises;
e) Medical locations;
f) Hotels;
g) Swimming pools;
h) Rooms containing sauna heaters;
j) Multi-storied buildings;
k) Supplies for electrical vehicles;
m) Sports buildings;
n) Industrial and non-industrial premises;
p) Temporary and permanent outdoor installations;
q) Agricultural premises;
r) Installations in hazardous areas; and
s) Solar photovoltaic installations.
NOTES
1 Any type of installation not covered by the above shall be classified in the group which most nearly resemble its existing or proposed
use.
2 Where change in the occupancy places it under the scope of a different Section of the Code, the same installation shall be made to
comply with the requirements of the Code for the new occupancy.
3 While numbering above items, ‘i’ and ‘o’ are avoided to avoid confusion with numerals ‘1’ and ‘0’.
3.3 The Code applies to circuits other than the internal wiring of apparatus.
3.4 The Code does not apply to traction, motor vehicles and installations in rolling-stock, on board-ships, aircraft
or installations in underground mines.
3.5 The Code covers only electrical aspects of lightning protection of buildings.
3.6 The Code is also not intended to apply to:
a) Systems of distribution of energy to public; and
b) Power generation and transmission for such systems.
3.7 The Code also does not cover guidelines on the payment for electrical work done in installations.
4 Central Electricity Authority Regulations under regulation 12 (2) of Central electricity authority (Measures
relating to safety and electric supply) Regulations, 2010 recommends the National Electrical code of India as a
code to be followed.
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THE NATIONAL ELECTRICAL CODE OF INDIA - 2023