lightning protection in india

Lightning Protection in India

PhilanthropeTraining for Safety

Lightning Protection in India

By

Isha Parmar

Project Executive, Philanthrope

New Delhi, India

Lightning Protection in IndiaLightning Protection in India

Basic Concepts of Lightning Phenomenon1

Lightning Threats2

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Essentials of Lightning Protection

Safety Measures

3

4

Training for Safety

Lightning Protection in IndiaLightning Protection in India

Aim of this presentation is to

Aim

To recommend certain safety

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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.

TopTop--10 Myths of Lightning Safety10 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.

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� 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”

Training for Safety

PARTPART--11

Basic Concept of Lightning Phenomenon

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Phenomenon

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

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� Normal lightning

� Sheet lightning

� Heat lightning

� Ball lightning

� Red sprite

� Blue jet

Colours of Lightning

Red

Orange

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White

Blue

What does it MeanWhat does it MeanYellow

Colours of LightningColours 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

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� 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

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Direct Effects

� Physical damage

(fire, explosion,

mechanical destruction)

� Injuries/ death to living

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being

Indirect Effects

� Surges or transit over voltage

Problem caused by it:

1.Disruption of data

2.Degradation (life span)

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2.Degradation (life span)

3.Damage (loss of equipment)

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

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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


City ATD

Delhi 30

Mumbai 18

Kerala 70

Chennai 47

Ahemdabad 11


Ahemdabad 11

Case Study- Kerala


Lightning in Kerala

Spatial

distribution of

lightning in

Kerala between

1986 and 2002.


Lightning death, injury

(Average/ year)

Death 71

Injuries 112

Events 188

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(Average/ year)

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Economic 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


Driving Force

� Western Ghat influencing Cumulonimbus Cloud

(Cb) formation,

� Population density and vegetation density.

(Population = 31.8 million )

� Lack of awareness

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� Lack of awareness

� Accident by Ground conduction which is a

special feature of Kerala


Protection Against Lightning in INDIA

The protection and safety

against lightning can be

achieved in two ways

� Protection through Scientific

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� 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

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2. Protective Angle

3. Faraday Cage Method

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.

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voluntary organizations.

� Creating awareness amongst masses, using media,

school education, street play etc

� Capacity building at local and regional levels.

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.

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� 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

ventilation with rescue breathing.

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.

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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 Preparedness

� Culture of Quick Response

� Culture of Emphatic Thinking

� Culture of Prevention

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Recommendation

1. Data Gaps

2. Absence of concerned authority.

3. Creating Awareness

4. Policy formulation

5. Protection of Power Systems and

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5. Protection of Power Systems and

Communication Networks and Army base.

6. Protection of National Heritage Sites .


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Isha Parmar - +91 9013477373

lightning protection in india

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