Govt Of India /PMO Office/State Govt/Ministry of Industries and Power/Power Generation Companies ,Companies using Boiler ,Coal and Handling Ash. /Consultants Govt and PVT ,MNC

1. NTPC Unchar Boiler Accident and Reasonand My Condolence
NTPC boiler blast: How the horrific accident unfolded at Unchahar plant Sece of event :
1. Bottom ash handling malfunctioning since last 2 days.
2. Huge build up of bottom ash inside boiler upto 16 m elevation.
3. NTPC does not stop unit hoping it can be cleared manually duringboiler running condition.
4. Open furnace manhole doors (both left and right side) at 10 m level.
5. Engage workers to poke collected clinkers (molten ash) to directsame towards bottom ash hopper so that same can be
cleared throughhopper bottom.
6. Suddenly the huge mass of clinker falls down. Water of hopper getsvaporised. Huge pressure get developed. 7.
Waterwall at corner 2 getscracked at fins and widened from 20 m toS panel (bottom arch portion furnace). No tube
failure.
8. At the same time unburnt / semi burnt coal gets carried over to 2ndpass due to furnace pressurisation. This creates
explosion inEconomiser. Economiser hopper gets blown away.
9. Due to furnace pressurisation Hot Slag (clinker) comes out throughmanhole door. NTPC personnel and workers
supervising the clinkerremoval job got severely injured.
10. At the same personnel working in the vicinity of boiler gotaffected by released hot flue gase and ash.

2. Reason Negligence Study Require for
All Industries using Boiler and Coal Process and Handling Ash
• Failure to take proper care over something.
• His injury was due to the negligence of his
employers"
• Working with old stupid Technologies
• Pressure for Generating Power under Equipment
Maintenance Require Condition
• Failure in Office Buerocracy Ministry of Power
and PMO Office.
• Jara Political Parties se Pucho Jo Mare wo Hindu
thae Yaa Musalman Keval wahan Kaam karne
wale Log mare unke piche jo family hey wo enhe
jinda lag rahe hey chode vote bank Politics
Insaniyat bhi Dhikayen
• Aab kaya karega India Badega India/Padegha
India yah logoan ki Raksha bhi karega India

3. Safety and Technology First
No insurance give Assurance
• Revision Standard Technical Documents Latest
• Follow Safety no Compromise with Budget.
• Maximum Equipment should Online Data Plz
Monitor and action this is not play this is safety of
Equipments and Human Lives.
• No Lower Bid Criteria it should be technical
Evaluation basis.
• Selection of Components should be quality basis no
influence basis.
• Learning and working with Latest and International
ethicks
Safety Safety and Safety Only

4. Follow Safety in Electrical Instalation Shocks

5. Sikhana to Padega Hi Follow NBC2016/IEC62305/IEEE80

6. Damage from Lightning Strike on Ground

7. Grid/Earth Mat Design

8. Surge Protection Is A Must

9. Equipments and Surge Information

10. Surge in Systems and Result

11. Surge in DC Application

12. 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.

13. Most Efficient JointProcess
It is efficient and superior to all existing surface –to-surface
mechanical retention connectors.

14. 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.

15. Early Streamer Lightning Protection(2)
Advance Systems for ProtectionNFC 17-102

16. IEC 62305 and NFC17-102

17. Earthing Design and Solution

18. Contact Professionals for Advise

19. We Protect You
Use Electrical Safety
Earthing & Protection
Mahesh Chandra Manav
M-9910398999 manav_mc@yahoo.co.in