Lightning Protection in India
Philanthrope
Training for Safety
Lightning Protection in India
By
Isha Parmar
Project Executive, Philanthrope New Delhi, India
Lightning Protection in India
Lightning Protection in India
Basic Concepts of Lightning Phenomenon
1
Lightning Threats
2
Philanthrope
Essentials of Lightning Protection Safety Measures
3
4
Lightning Protection in India Lightning Protection in India
Aim of this presentation is to
Aim
To recommend certain safety Philanthrope www.themegallery.com presentation is to bring out the basic concepts of lightning phenomenon, the lightning threats and essentials of lightning protection, certain safety measures that should be taken to minimize lightning hazards.Top
Top--10 Myths of Lightning Safety
10 Myths of Lightning Safety
Lightning never strikes the same place twice
If it’s not raining, or if clouds aren’t overhead, you are safe from lightning
Rubber tires protect you from lightning in a car by insulating you from the ground
A lightning victim is electrified. If you touch them, you’ll be electrocuted.
If outside in a thunderstorm, go under a tree to stay dry.
Philanthrope
If outside in a thunderstorm, go under a tree to stay dry.
If you are in a house, you are safe from lightning
When playing sports and thunderstorms threaten, it’s okay to finish the game before seeking shelter.
Structures with metal, or metal on the body (jewellery, watches, glasses, backpacks, etc.), attract lightning
If trapped outside and lightning is about to strike, lie flat on the ground
Go near a tall pointy isolated object when thunderstorms threaten, to be within the 45°“cone of protection”
PART
PART--1
1
Basic Concept of Lightning
Phenomenon
Philanthrope
Different
Different TTypes ypes of of StrikesStrikes::
Cloud to Ground
Ground to Cloud
Cloud to Cloud
Types
Types of Lightningof Lightning
Normal lightning
Types of Strikes and Lightning
Philanthrope Normal lightning Sheet lightning Heat lightning Ball lightning Red sprite Blue jet
Colours of Lightning
Red Orange Philanthrope White BlueWhat does it Mean What does it Mean
Colours of Lightning
Colours of Lightning
Blue lightning within a cloud indicates the presence of hail.
Red lightning within a cloud indicates the presence of rain.
Yellow or orange lightning occurs
Philanthrope
Yellow or orange lightning occurs when there is a large concentration of dust in the air.
White lightning is a sign of low humidity. White is the colour of lightning that most often ignites forest fires.
Lightning Hazards
Direct Effects
Physical damage (fire, explosion, mechanical destruction)
Injuries/ death to living
Philanthrope
Indirect Effects
Surges or transit over voltage
Problem caused by it:
1.
Disruption of data
2.
Degradation (life span)
Philanthrope
2.
Degradation (life span)
What is Lightning Protection?
Provides a means by which electric discharge may enter or leave earth without passing through and damaging non-conducting parts of a structure
Does not prevent lightning from striking
Philanthrope
striking
It provides a means for controlling and preventing damage by providing a low
resistance path for the discharge of lightning energy.
Monsoon Map of India
Philanthrope
City ATD Delhi 30 Mumbai 18 Kerala 70 Chennai 47 Ahemdabad 11 Philanthrope www.themegallery.com Ahemdabad 11
Case Study- Kerala
Philanthrope
Lightning in Kerala
Spatial distribution of lightning in Kerala between 1986 and 2002. Philanthrope www.themegallery.comLightning death, injury
(Average/ year) Death 71 Injuries 112 Events 188 Philanthrope (Average/ year) www.themegallery.comEconomic losses
Year Repair and
Replacement (in Rs) Subscriber affected 12/04/02- 04/04/02 13,65,237 1308 30/09/02- 18/11/02 4,47,706 4323 Philanthrope www.themegallery.com
Driving Force
Western Ghat influencing Cumulonimbus Cloud (Cb) formation,
Population density and vegetation density. (Population = 31.8 million )
Lack of awareness
Philanthrope
Lack of awareness
Accident by Ground conduction which is a special feature of Kerala
Philanthrope
Protection Against Lightning in
INDIA
The protection and safety against lightning can be achieved in two ways
Protection through Scientific
Philanthrope
Protection through Scientific and technical Methods
Mitigation through safety measures
Protection through Scientific and
technical Methods
1. Air Termination Network-It includes:
Traditional Air Terminal
ESE lightning arrestor/ Air Terminal
2. Protective Angle
Philanthrope
2. Protective Angle
Mitigation through safety
measures
Creating Awareness among masses for risk reduction is needed amongst policy makers, decision makers,
administrators, professionals (architects, engineers and others at various levels) financial institutions (banks,
insurance, house financing institutions) and NGOs and
voluntary organizations.
Philanthrope
voluntary organizations.
Creating awareness amongst masses, using media, school education, street play etc
Medical Recommendations
Timely medical treatment required.
Individuals struck by lightning do not carry a
charge.
Anyone who has signs of life is highly likely to
survive.
Those in cardiac or respiratory arrest should
receive the greatest efforts.
Philanthrope
Fixed, dilated pupils should not be used to
establish death.
If victim is not breathing, has no pulse, follow
advanced cardiac life support (ACLS)
In cold and wet situations, put a protective layer
between the victim and the ground to decrease hypothermia.
If the pulse returns, the rescuer should continue
Basic survival techniques
Cardiac pulmonary respiration (CPR) - The main cause of death is cardiopulmonary arrest. Most victims survive if they receive prompt CPR.
Prompt CPR may prevent secondary hypoxia, brain damage and death.
Philanthrope
brain damage and death.
Artificial Respiration (AR) - Post CPR Artificial respiration may be needed for good outcome.
There is The Need For Inculcating:
Culture of PreparednessCulture of Quick Response
Culture of Emphatic Thinking
Culture of Prevention
Recommendation
1. Data Gaps
2. Absence of concerned authority.
3. Creating Awareness
4. Policy formulation
5. Protection of Power Systems and
Philanthrope
5. Protection of Power Systems and
Communication Networks and Army base.
6. Protection of National Heritage Sites .
