indian standards on fire and electrical...
TRANSCRIPT
![Page 1: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/1.jpg)
Indian Standards
On
Fire and Electrical Safety
A K Purohit, Scientist E
Bureau of Indian Standrds
Bhubaneswar
![Page 2: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/2.jpg)
Electrical and Fire Safety
Why ?
■ LIFE SAFETY
■ PROPERTY PROTECTION
![Page 3: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/3.jpg)
Electrical Accidents-Statistics
•
• 25% of all fires occur due to electricity
•About 25 deaths per day due to electrocution (India)
(2011)
•42 % of total fires occur due to electrical sources
•8% deaths that occur in Indian factories are due to
electricity
![Page 4: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/4.jpg)
How Standards can help
■ Incorporating safety features in product
while defining product characteristics
■ System safety
◻ Defines best practices on Dos and Do Not
◻ Best practices in Industry
◻ Experience
![Page 5: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/5.jpg)
ELECTRICAL SAFETY
■ Energy usage in the modern world is predominantly in the electrical form due to the advantages offered by it in ease of generation, transmission and ultimate application as compared to other forms of energy.
■ Use of electricity has changed our life. Although it is of paramount importance in our day to day life , it brings with it associated hazards arising out of various factors.
■ Safety is of paramount importance during generation, transportation and final usage of electrical energy and the associated installations.
![Page 6: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/6.jpg)
ELECTRICAL SAFETY (Contd)
■ Working with electricity can be dangerous. Engineers, electrician, and other professionals work with electricity directly, and including working on overhead lines, cable harnesses, and circuit assemblies. Others such as office workers and sales people work with electricity indirectly and may also be exposed to electrical hazards.
■ The hazards can be in the form of electrical shock, burns or fire.
![Page 7: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/7.jpg)
Hazards
Application of a safety standard is intended to reduce the risk of injury or damage due to :
■ electric shock;
■ energy related hazards;
■ fire; ■ heat related hazards;
■ mechanical hazards;
■ radiation;
■ chemical hazards.
![Page 8: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/8.jpg)
Electric shock
■ approximately half a mili-ampere can
cause a reaction in persons in good health
and may cause injury indirectly due to
involuntary reaction.
![Page 9: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/9.jpg)
Energy related hazards
■ may result from a short circuit
◻ burns;
◻ arcing;
◻ ejection of molten metal.
![Page 10: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/10.jpg)
Fire Measures to reduce risks include:
■ providing overcurrent protection; ■ using constructional materials having appropriate
flammability properties for their purpose; ■ selection of parts, components and consumable
materials to avoid high temperature which ■ might cause ignition;
■ limiting the quantity of combustible materials used; ■ shielding or separating combustible materials from likely
ignition sources; ■ using ENCLOSURES or barriers to limit the spread of
fire within the equipment; ■ using suitable materials for ENCLOSURES so as to
reduce the likelihood of fire spreading
■ from-the equipment.
![Page 11: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/11.jpg)
Heat related hazards
◻ burns due to contact with hot accessible parts;
◻ degradation of insulation and of safety-critical components;
◻ ignition of flammable liquids.
■ measures to reduce risks include ◻ taking steps to avoid high temperature of accessible
parts; ◻ avoiding temperatures above the ignition point of
liquids; ◻ provision of markings to warn USERSwhere access
to hot parts is unavoidable.
![Page 12: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/12.jpg)
Mechanical hazards
◻ sharp edges and corners;
◻ – moving parts which have the potential to cause injury;
◻ – equipment instability; ◻ – flying particles from imploding cathode ray tubes
and exploding high pressure lamps.
■ measures to reduce risks include: ◻ rounding of sharp edges and corners;
◻ guarding; ◻ provision of SAFETYINTERLOCKS
![Page 13: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/13.jpg)
Radiation ◻ sonic (acoustic)
◻ radio frequency
◻ infra-red
◻ ultraviolet and ionizing radiation,
■ measures to reduce risks include
◻ limiting the energy level of potential radiation sources;
◻ screening radiation sources;
◻ Provision of SAFETYINTERLOCKS
◻ markings to warn USERS
![Page 14: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/14.jpg)
![Page 15: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/15.jpg)
![Page 16: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/16.jpg)
INFORMATION TECHNOLOGY
EQUIPMENT—
SAFETY—GENERAL REQUIREMENTS
■ IS 13252 (Part-1) :2010 / lSO/lEC 60950-1 :2001
■ Applicable to
◻ standard is applicable to mains-powered or battery-
powered information technology equipment,
◻ electrical business equipment and associated
equipment, with a RATED VOLTAGE not exceeding
600 V.
![Page 17: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/17.jpg)
![Page 18: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/18.jpg)
IS 616 2010 - Audio, Video and Similar
Electronic Apparatus - Safety
Requirements
■ Equivalent to IEC 60065 : 2005
![Page 19: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/19.jpg)
UPS
■ IS 16242 : Part 1 2014 -Uninterruptible
Power Systems (UPS) Part 1 General and
Safety Requirements for UPS
■ Equivalent to IEC 60240-1 : 2008
![Page 20: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/20.jpg)
Compulsory Registration
Scheme
■ Department of Electronics & Information
Technology (DeitY) has notified
"Electronics and Information Technology
Goods (Requirement for Compulsory
Registration) Order, 2012 – 15 products
■ Subsequent Order on 13 Nov 2014. – 15
products
![Page 21: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/21.jpg)
Features of Registration Scheme
■ no person shall manufacture or store for sale, import, sell or distribute goods which do not conform to the Indian standard specified in the order
■ Manufacturers of these products are required to apply for registration from Bureau of Indian Standards (BIS) after getting their product tested from BIS recognized labs.
■ Self Declaration of conformity – no inspection
![Page 22: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/22.jpg)
Product Covered under Compulsory registration Scheme
![Page 23: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/23.jpg)
![Page 24: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/24.jpg)
![Page 25: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/25.jpg)
![Page 26: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/26.jpg)
![Page 27: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/27.jpg)
![Page 28: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/28.jpg)
![Page 29: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/29.jpg)
![Page 30: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/30.jpg)
Safety of
Household
Electrical
Appliances
■ General
Requirement
■ Particular
requirement
![Page 31: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/31.jpg)
Safety of Household and similar electrical
appliances
■ IS 302 / IEC 60335 - Safety requirements
for household and similar electrical
appliances.
◻ Part 1 : 2008 General Requirement
◻ Part 2 Particular requirements (parts 2 contain
clauses to supplement or modify the
corresponding clauses in part 1)
■ Section 1 – appliances 1
■ Section 2 – appliances 2
■ ……..
![Page 32: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/32.jpg)
Safety of Household and similar electrical
appliances IS 302 / IEC 60335 ■ Safety of electrical appliances for
household and similar purposes, their
rated voltage being not more than 250 V
for single-phase appliances and 480 V for
other appliances
■ does not take into account
◻ use of appliances by young children or infirm
persons without supervision,
◻ playing with the appliance by young children
![Page 33: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/33.jpg)
Safety of Household and similar
electrical appliances ■ Protection against electric shock (class 0 to class 3)
■ Marking ■ Temperature Rise
■ Operation under Overload conditions ■ Electrical Insulation and Leakage Current at
Operating Temperature ■ Moisture Resistance ■ Abnormal Operation
■ Construction ■ Internal Wiring
■ Radiation Hazards
![Page 34: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/34.jpg)
Different Class of Appliances based on
Protection against electric shock
![Page 35: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/35.jpg)
Class 0
■ These appliances have no protective-earth
connection and feature only a single level
of insulation between live parts and
exposed metalwork
■ If permitted at all, Class 0 items are
intended for use in dry areas only
![Page 36: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/36.jpg)
Class 1
■ appliances must have their chassis
connected to electrical earth
■ A fault in the appliance which causes a
live conductor to contact the casing will
cause a current to flow in the earth
conductor
![Page 37: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/37.jpg)
Class 2
■ Class II or double insulated electrical
appliance is one which has been designed
in such a way that it does not require a
safety connection to electrical earth
(ground)
![Page 38: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/38.jpg)
Class 3
■ Class III appliance is designed to be
supplied from a separated/safety extra-low
voltage power source.
![Page 39: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/39.jpg)
Safety in Electrical Installations
Scope of ET 20:
■ To prepare standards for safety and related
matters in designing, erection and maintenance
of electrical installations from the point of view of
safety and good engineering practice that would,
amongst other things, promote compatibility
between such standards and those concerning
the equipment installed
![Page 40: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/40.jpg)
■ Need to lay down rules and inform good
practices
■ The Indian Electricity Rules, 1956, contain
specific regulations to be adhered to in the
supply and use of electrical energy.
■ Central Electricity Authority (Measures
relating to Safety and Electric Supply)
Regulations, 2010
■ Nevertheless, there are several areas
which need elaboration and
complementing.
![Page 41: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/41.jpg)
Safety in Electrical Installations
(Contd)
■ The work includes electrical installations in
buildings for different occupancies and
outdoor sites of temporary or permanent
nature
■ National Electrical Code (NEC) dealing
with electrical installations falls under the
scope of this committee .
![Page 42: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/42.jpg)
![Page 43: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/43.jpg)
NEC 2011
◻elaborates the IE Rules/ safety reg. which are
statutory in nature
◻serves as a comprehensive document on
electrical practices in India
◻provides information in a consolidated form to
electrical engineers and contractors in the
country who are concerned with the design
and operation of electrical installations.
![Page 44: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/44.jpg)
National Electrical Code (NEC) 2011
■ Indian Electricity Act, 1910
■ Indian Electricity Rules, 1956
■ Need was felt to elaborate upon these
regulations since the agencies involved have
varied practices
■ In order to rationalize these practices, India’s
first National Electrical Code, formulated in 1985
![Page 45: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/45.jpg)
NEC 2011
■ compendium of several well established
codes of practice
■ The code complemented and elaborated
on the Indian Electricity Rules, 1956
■ Electricity Act 2003
■ Energy Conservation Act, 2001
![Page 46: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/46.jpg)
NEC 2011
■ Electrical Installations Sectional Committee, ETD 20
■ All material, accessories, appliances etc., used in an electrical installation should conform to Indian Standards wherever they exist
■ Electrical installation should be carried out in accordance with the Indian Electricity Rules, 1956
■ Intended to be advisory
![Page 47: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/47.jpg)
Scope of NEC 2011 ■ Standard good practices for selection of
various items of electrical equipment
■ Recommendations concerning safety and related matter
■ General safety procedures and practices in electrical work;
■ Additional precautions for special environmental conditions like explosive and active atmosphere.
![Page 48: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/48.jpg)
NEC APPLIES TO:
■ Standby generating plants
■ Building substations
■ Domestic dwellings
■ Office buildings
■ Shopping and commercial centres
■ Institutions
■ Recreation and other public premises
■ Medical establishments
![Page 49: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/49.jpg)
NEC APPLIES TO:
■ Hotels
■ Sports buildings
■ Industrial premises
■ Temporary and permanent outdoor installations
■ Agricultural premises
■ Installations in hazardous areas
■ Solar Photovoltaic installations
![Page 50: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/50.jpg)
NEC DOES NOT APPLY TO:
■ Traction, motor vehicles, installations in rolling-stock, on board-ships, aircraft or installations in underground mines
■ Systems of distribution of energy to public
■ Power generation and transmission for such systems
■ Guidelines on the payment for electrical work done in installations
![Page 51: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/51.jpg)
National Electrical Code
(Contents)
NEC contains
8 Parts and
30 Sections
![Page 52: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/52.jpg)
NEC CONTENTS ■ Part 1 General and Common Aspects
■ Part 2 Electrical installations in stand by generating stations and captive substations
■ Part 3 Electrical installations in non-industrial buildings
■ Part 4 Electrical installations in industrial buildings
■ Part 5 Outdoor installations
■ Part 6 Electrical installations in agricultural premises
■ Part 7 Electrical installations in Hazardous area
■ Part 8 Solar Photovoltaic (PV) power supply systems
![Page 53: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/53.jpg)
Part 1 General and Common Aspects Section 1 Scope of the National Electrical Code
Section 2 Definitions
Section 3 Graphical Symbols for Diagrams, Letter
Symbols and Signs
Section 4 Guide for preparation of diagrams, charts &
tables, and marking
Section 5 Units and systems of measurement
Section 6 Standard Values
Section 7 Fundamental principles
Section 8 Assessment of General Characteristics of
buildings
Section 9 Wiring Installations
Section 10 Short Circuit Calculations
![Page 54: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/54.jpg)
Part 1 General and Common Aspects
Section 11 Electrical aspects of building services
Section 12 Selection of equipment
Section 13 Erection and precommissioning testing of
installations
Section 14 Earthing
Section 15 Lightning protection
Section 16 Protection against voltage surges
Section 17 Guidelines for power factor improvement
Section 18 Energy Efficiency aspects
Section 19 Safety in electrical work
Section 20 Tables
![Page 55: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/55.jpg)
Alphanumeric Notation, Graphical
Symbols and Colours
Supply ac
systems
Phase 1 L1 Red
Phase 2 L2 Yellow
Phase 3 L3 Blue
Neutral N Black
![Page 56: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/56.jpg)
Part 1 Section 7 Fundamental principles
■ Distance from Electric lines
■ Lighting and ventilation(Section 14)
■ Heat Insulation
■ Lifts and Escalators
■ Locations and space for Electrical
Equipment
■ Design of electrical installation-protection
for safety, other factors
![Page 57: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/57.jpg)
Layout of the Sections/Parts
■ Switchgear for Control and Protection
■ Building Services
◻ Lighting
◻ Air-conditioning
◻ Lifts
■ Fire Protection
■ Testing of Installation
■ Miscellaneous Provisions
![Page 58: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/58.jpg)
NATIONAL ELECTRICAL CODE
◻ Contains guidelines which can be adopted
immediately
◻ Harmonized with corresponding IEC standards
◻ Gives reference to related Indian standards
◻ Code is intended to be advisory
◻ Code is not mandatory
◻ Should be adopted in interest of safety and
economy
◻ Keep our electrical installation practices at par with
the best national and international practices
![Page 59: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/59.jpg)
![Page 60: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/60.jpg)
![Page 61: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/61.jpg)
![Page 62: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/62.jpg)
![Page 63: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/63.jpg)
How a wire are drawn and how they are connected in a T joint
![Page 64: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/64.jpg)
![Page 65: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/65.jpg)
![Page 66: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/66.jpg)
Recommended Fire Protection by NEC 2011
![Page 67: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/67.jpg)
NATIONAL ELECTRICAL CODE
SP 30 : 2011 NATIONAL ELECTRICAL CODE
Available at BIS Sales offices
Available for online sale at BIS sales portal
www.standardsbis.in
![Page 68: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/68.jpg)
Fire safety
![Page 69: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/69.jpg)
Fire Safety
■ On an average 300 deaths per year
■ Huge property losses
■ About 69% fires are caused by
electricity
■ More prevalent in high rise building
![Page 70: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/70.jpg)
NBC 2005
■ The main purpose of building codes is to protect public health, safety and general welfare as they relate to the construction and occupancy of buildings and structures
![Page 71: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/71.jpg)
NBC
■ Birth of NBC1970
■ First Revision of NBC1983 (after 13 years)
■ Second Revision of NBC-IV 1997 ( after
14 years)
■ 3rd Revision of NBC 2005 (after 22 years)
![Page 72: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/72.jpg)
National Building Code 2005
■ Construction –In all Sectors of
Development.
■ Planning Commission –A need felt for in-
depth Study, Reason & its Justification.
■ Linkage-Latest Technology V/S Outdated
Byelaws
■ Resulted in the Evolution of NBC.
![Page 73: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/73.jpg)
Applicability of the code
To Service as model for adoption by ■ Public works department, other government
construction departments and other construction agencies.
■ To be adopted by State Government / local bodies
■ The building code becomes law of a particular jurisdiction when formally enacted by the appropriate governmental or private authority.
![Page 74: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/74.jpg)
Classification of Building in NBC
2005
■ Group A Residential
■ Group B Educational
■ Group C Institutional
■ Group D Assembly
■ Group E Business
■ Group F Mercantile ■ Group G Industrial
■ Group H Storage
■ Group J Hazardous
![Page 75: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/75.jpg)
PART 4 FIRE AND LIFE SAFETY
■ Deals with Safety from Fire. ■ Exits in Building V/S Importance of Life Safety.
■ Involvement of Qualified & Trained Fire Protection Engineers from the very beginning.
■ Standards Laid Down to provide safety from fire. ■ Potential Panic Hazard –measures to minimize Panic
hence control on accidents. ■ Flexibility V/S Rigidity.
■ Limitation of Height and areas of Building for Occupants Safety.
■ Phasing out of Ozone Depleting Substance-Under Country Program.
■ New standards have been already developed and put in place for Halonalternative clean agents.
![Page 76: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/76.jpg)
Fire Safety
■ IS 13694:1993 – Fire Safety in Iron and Steel Industries ◻ Blast Furnace
◻ Steel Melting Shop
◻ Coke Oven
◻ Re-heating furnace
◻ Hot Mill (rolling mill)
◻ Fire detection and alarm system
◻ Fire extinguishing system
![Page 77: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/77.jpg)
IS 3594 : 1991
■ CODE OF PRACTICE FOR FIRE
SAFETY OF INDUSTRIAL BUILDINGS:
GENERAL STORAGE AND
WAREHOUSING INCLUDING COLD
STORAGES
![Page 78: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/78.jpg)
BIS Web site
■ Web site :- www.bis.gov.in
■ Online sales of Indian Standards
◻ www.standardsbis.in
■ Compulsory registration (Electronics and
IT Product – www.crsbis.in
![Page 79: Indian Standards On Fire and Electrical Safetyiqemsindia.com/OSSC-Presentation-2016/technical-session-3/Mr.A.K...Symbols and Signs Section 4 Guide for preparation of diagrams,](https://reader034.vdocuments.mx/reader034/viewer/2022042708/5ad010377f8b9ad24f8d388a/html5/thumbnails/79.jpg)
Thank You