2. Anand Patwardhan, IIT-
Bombay
2
GOVERNMENT OF INDIA : NODAL MINISTRIES / DEPARTMENT FOR
DISASTER MANAGEMENT
DISASTERS NODAL MINISTRIES
Natural Disasters Agriculture
Air Accidents Civil Aviation
Civil Strife Home Affairs
Railway Accidents Railways
Chemical Disasters Environment
Biological Disasters Health & family Welfare
Nuclear Accident Atomic Energy
4. Disaster Management and Early Warning Systems
June 2017
Safe Practice in Earthing and Protection
Almost 30000 people die due to Nature Disaster .
20 % of death occur due fires in Forest .
30 % deaths that occur in Earth Quake
30% deaths due to Lightning due to Rail
10% death due to Floods
10% deat due to wind
5. Disaster MEAN(Emergency)
• Any incident which impact Mass Live comes under
disaster reason may be Weather
• (Wind,Water,Cloud) and Earth Reaction.
• Another may Fire in Jungle.
• Prevention
• Managing Alert Messasge by Authorties.
• Early Warning Ligthning,Earthquakes,Sunami,High
Wind Speed
• Countinous Collection of data from Warning
Devices and Analyse
• Awarness and Education Programme
8. Early Warning – Disasater Management
System Concept Design often starts with a detailed Site Survey during
Disaster Requirements and for the Warning System Solution for the said area
• I teg atio to othe s ste s su h as Fi e & Gas, Pu li Add ess, PABX et .
• T pes of a i g e ui ed.
• Desi ed S ste Fu tio alit
• I spe tio of Site Co ditio s su h as Haza dous A eas, T pe of Da ge s et .
• Ba kg ou d Noise Le el, Noise Mappi g a d A ousti A al sis.
Based on the outcome here of a Selection for Product Range to offer in
Effective planning and designing best the Warning System Solution.
HSS Engineering has o e tha 40 ea s’ e pe ie e i Pu li
Address/General Alarm (PAGA) and Mass Notification Systems that are used
for indoor and outdoor warning at Military, Industrial, Petrochemical and
Nuclear Facilities as well as National Civil Defense Systems.
As one of the World Leaders in Mass Notification Systems, we know that the
origin of a good system design comes from proper planning. The interaction of
hardware and software can be complex and requires a good dialogue between
the customer and our engineers. In many cases, local standards also affect the
est solutio fo the usto e ’s Wa i g S ste
India Denmark Commitment to Safe Guard Human Life (Early Warning)
38. Facts about Lightning
• A strike can average 100 million volts of electricity
• Current of up to 200,000 amperes
• Can generate 54,000 oF
• 10/350MicroSec/50KA Fault Current/Discharge in
Nano Sec
Protection
Earthing Design100KA Fault Current/Joints Exothermic
/Flexible Down Conductor with Shortest Route &
Less Corner
39. • Lightning Protection Standard use in India
(IS2309 Now IEC 62305-5)NBC2016
Working Principle Angullar No Compromise with Design
Max Protection 30Mtrs from One
No Product warrenty from Manufacturer
High Maintenance Require
Earthing below 10.00 Ohm
40. Lightning Risk assessment Study is actually the measure of risk of a lightning strike and
probability of damages. As Per IEC62305-2.
All these calculations are based on:
Lightning strike density inthat particular area(provided byOMV i.e.Ng =
8),
Danger for people,
Occupation coefficient of structure,
Relative location of site,
Fire Risk,
Associated services,
Electrical Lines,
Lightning Protection Level,
Surge Arrestor and
Dimensions of installation.
44. The ESE air terminal is a terminal which enables to generate artificially an upward leader earlier than a simple rod, with
an ionization system, in order to establish a special impact on its point. The capture of the lightning strike being faster
than a simple rod, this technology enables to benefit from larger protection areas, ensuring protection for large
dimensions structures.
The ge erated protectio radius depe ds o the early strea er e issio value of the air ter i al Δt i µs , its height,
and the efficiency of the protection. The protection radius ensured by this type of air terminal is 120 m (Protection level
IV, height = 60 m , early streamer emission time 60µs) The NFC 17-102 standard describes the installation procedure for
this type of air terminal.
The installation of this type of air terminal is easy and cheaper than other technologies. It can protect whole buildings
with one E.S.E. air terminal. It enables the protection of a structure and its environment, the protection of opened areas
and well integrate in the architecture of a structure without aesthetic alteration.
1 ESE, 2 down conductors and 2 earthing systems are necessary to ensure the protection below :
45. ESE Installation Guidence
ESE AT with radius protection form 32 mtr to 107 mtr.
DMC Insulator .
GI/FRP Mast .
Down Conductor Copper / Copper Cadmium
Cable 70 sq. mm
Copper Bonded Ground Earthing
46. Step – 1
Step – 2
Step – 3
Joint all phase wire/ cable with the help of
crimping tools and lugs
Fixed the separation sheet between all wires/
cables
Close the filled Silicon enclosure from top and
bottom , complete installation is done.
Thimble
Separation Sheet
Gel / Silicon
53. Copper Cladded Conductor For Electrical
Installation
The Copper Clad Steel Grounding Conductor is made up of steel with the coating of 99.99% pure copper. These
conductors/ wires
or strands are equipped with the strength of steel with the conductivity and copper with the better corrosion
resistance property. The concentric copper cladding is metallurgic ally bonded to a steel core through a continuous,
solid cladding process using pressure rolling for primary bonding. The copper cladding
thickness remains constant surrounding steel. We use different steel grades for the steel core result in Dead Soft
Annealed, High strength and Extra High Strength Characteristics.
The Copper Clad Steel Wire yields a composite conductivity of 21%, 30% and 40% IACS, and available in Annealed
and Hard drawn. We are delivering products with varied conductivity and tensile strength as per the customer need.
Further, the wire can be processed to be silver plated or tinned copper clad steel wire.
54. Most Efficient JointProcess
It is efficient and superior to all existing surface –to-surface
mechanical retention connectors.
55. What is Exothermic Welding System?
Copper to Bi-Metal and Alumenium
Types of Exothermic Joints:
Possible to join any bi metal except aluminum
Exothermic welding is a process of making maintain free highly molecular bonding process is superior in
performance connection to any known mechanical or compression-type surface-to-surface contact connector.
Exothermic weld connections provide current carrying (fusing) capacity equal to that of the conductor and will
not deteriorate with age.
It offers Electrical connections between two or more copper to copper and copper to steel conductors.
Highly portable method as it does not require any external power source or heat source, so it can be done
almost anywhere.
It provides strong permanent molecular bond among metallic conductors that cannot loosen and further will
not deteriorate with age.
Connection does not corrode with time and it offers permanent conductivity.
56. Installation
ESE AT with radius protection form 32 mtr to 107 mtr.
DMC Insulator .
GI/FRP Mast .
Down Conductor Copper / Copper Cadmium
Cable 70 sq. mm
Copper Bonded Ground Earthing