Project Smart India /Smart Industries /Power ,Oil &Gas and Infra Projects
Safe Practice in Earthing and Protection
SMART PROCESS PLANT AUTOMATION CONSULTANT TEAM India Engineers India Ltd WELCOME FOR THE PRESENTATION ON Best Practice ELECTRICAL Equipment Installation and SAFETY PRODUCTS (Electrical Controls Communication Networking Monitoring)
EIL Activity EQUIPMENT & SYSTEMS DESIGN AND SUPPLY POWER Power Generation, Transmission & Distribution .,Solar PV ,High Energy Storage Batteries INFRASTRUCTURE & Buildings Space Technology – Satellite Launch Pad Defence Projects Architecture & Town Planning Water Management Ports & Harbours Material Handling Roads, Highways, Bridges, Traffic & Transportation
OIL & GAS Chemical & Process Plant Refineries & Petrochemicals Petroleum, Oil & Gas, LPG/LNG – Terminals / Depots / Retail Outlets / Bottling Plant. Long distance Cross Country Pipelines – Oil & Gas METALS Iron & Steel Ferro Alloys Rolling Mills Coke Oven & Chemicals Non-Ferrous Metals – Aluminium, Zinc, Copper, Lead, etc. Mining & Mineral Beneficiation and transportation. Refractories
SMART Process Plant Project IndiaPresentation by JMV LPS LTD
Oil&Gas ,Power ,Infra
EIL Oil &Gas/Power Storage and Distribution
• Process Plant is Combination of Mechanical, Electrical . and Control Automation Project which is More Dependable with Motors and Actuator Functions. • Large Field Maintaining Incoming Material Storage , Handling and Pumping up to Process Plant Later Storage and Transportation for Final Bio Products . • Handling of Water and Air for Process Activity some with Cooling and Heating Process . • Packaging of Finish Products
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Process Plant Air Water Fire Pressure
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Source of Power Through Grid Wind Machine Solar PV/Solar Thermal Captive Power (Genset) Battery Back-up UPS/Invertor Waste Heat Recovery Power Plant
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Pro ess Pla t’ May e Food & Process Cosmetic & Pharma Chemical & Bio Products Distillery Plant Oil &Gas Plant Lubricant Plant Fuel Handling and Storage
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Category Hazard Zone Flammable Highly Flammable Highly Corrosive
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Building and Infra Facilities Local Power Generation and Connect to Grid/Off Grid Fibre Optic Network Wireless/Satalite Communication Tower Substation as per Require Capacity Smart Net Metering and Monitoring (SCADA) Street Light use LED /Stand Alone (Solar) Weighing Platform for Transports Water Storage and Distribution/Waste Water Treatment Bulk Storage Terminal and Distribution
Sikhana to Padega Hi Follow NBC2016
External/Internal Surge Source
Fire Accident in Chemical & Process Plant Reason Lose Contact Earthing Disorder and Lightning
An Arcing Fault is the flow of current through the air between phase conductors or phase conductors and neutral or ground. Concentrated radiant energy is released at the point of arcing an a small amount of time resulting in Extremely High Temperature.
Follow Safety in Electrical Instalation Shocks
Earthing Design and Require Result • For substation Large Power below 1.00Ohm • For substation Small Power below 2.00Ohm • SCADA/TELECOM and AutomationFor substation Large Power below 0.50Ohm • Tower and Other Structure between 8-15Ohm • Lightning Surge Protection 50KA below 5Ohm or 100KA between 8-15Ohm • Follow Standard IEC /IEEE • Recommended use of Hybrid Metal to Protect from Theft Copper Clad Steel/Alumineum Clad Copper • Exothermeic weld IEEE 837
Surge in Systems and Result
Surge in DC Application
Surge Protection Recommation
Surge Protection use Recommendation
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JMV LPS Products
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.
Most Efficient JointProcess
It is efficient and superior to all existing surface –to-surface mechanical retention connectors.
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.
Copper Clad Steel Solid ROD and Conductor
LIGHTNING FORMATION
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
• 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 NFC17-102(2011) Now Europeon Standard(ESE LA) Working Principle Radius Compromise with Design Possible with Increasing Qty of ESE Max Protection 109 Mtrs Radius from One Manufacturing Warrenty and Test Certificate for Products Available Maintenance on Call Basis
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 in that particular area (provided by OMV 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.
Lighting Strike Density (Ng) It is the measure of lightning strikes per kilometre square per year in the particular area. Higher the lighting strike density, higher the probability of lightning strike which needs higher level of lightning protection level. Danger for People (h) It is the factor of presence of people and panic in the building in case of a lightning strike
No particular danger
1
Low panic level(<=2 floors, < 100 persons
2
Medium risk of panic (< 1000 persons)
5
Difficult to evacuate (disabled people, hospitals)
5
High risk of panic (> 1000 persons)
10
Hazard for surroundings or environment
20
Contamination of surroundings or environment
50
Occupancy Coefficient (Lf1) It is the risk reduction factor with respect to theoccupancy of the building / installation. For example, loss due to lighting strike is higher in hospital as compared to a store / warehouse. Structure unoccupied
0.1
Structure normally occupied
0.01
Relative Location of Site (Cd) It is the risk reduction factor with respect to the location and surrounding of the building / installation. For example, chance of lighting strike is minimized if the building is near to a high tower. Structure surrounded by higher objects or trees
0.25
Structure surrounded by similar or lower objects
0.5
Isolated structure-No other objects nearby
1
Isolated structure on top of a hill or a hillock
2
Fire Risk (rf) It is the risk reduction factor with respect to the flammability of the material present in the building / installation. For example, in case of lighting strike, loss will be very high at a gas station as compare to the cement store.
Explosion
1
High
0.1
Ordinary
0.01
Low
0.001
Lightning Risk Calcuator as per IEC6305 LIGHTNING RISK ASSESSMENT CALCULATIONS Building / Installation :
KTC Tower
Building ID No.
KTC, Mall Road
Ng=
8
Length L(m)
L=
12
Width W(m)
W=
15
Height H(m)
Hi=
10
Chimney/Tower height (m)
T=
2
LIGHTNING DENSITY
STRUCTURE
DANGER FOR PEOPLE
h=
No particular danger
OCCUPATION OF THE STRUCTURE
Lf1=
Structure normally occupied
LIGHTNING CONDUCTOR
Pd=
Protection Level IV
Electrical Line
Ai=
Underground
RELATIVE LOCATION OF THE STRUCTURE
Cd=
Structure surrounded by higher objects or trees
FIRE RISK
rf=
Low
SERVICE
Lf2=
Gas, water
SURGE ARRESTOR
Pi=
None
Risk of human loss
R1=
ACCEPTABLE
Risk of loss of service
R2=
ACCEPTABLE
Risk of loss of cultural heritage
R3=
ACCEPTABLE
RESULTS OF THE RISK ASSESSMENT
PASSIVE PROTECTION SYSTEM
The Simple Rod air terminal is composed from a metallic rod with 2 to 8 m height dominating the structure to protect, and linked to 2 down conductors minimum, and 2 earthing systems. The protection radius ensured by this air terminal which is limited to 30 m more or less (Protection level IV, height = 60 m), especially dedicated to the protection of small structures or areas like to ers, hi eys, ta ks, ater to er, a te a astsâ&#x20AC;Ś The EN 0 -3 standard describes the installation procedure for these air terminals. 13 Simple Rods, 13 down conductors, and 13 earthing systems are necessary to ensure the protection below :
The meshed cage protection is composed from a meshing in roof surface and in the front face around the uildi g. Surrou di g the roof surfa e, a d o high poi ts, apture poi ts are positio ed. A o du torsâ&#x20AC;&#x2122; network is placed at the outer perimeter of the roof. This network is completed by transverse conductors. The size of the meshing is 5 to meters, and depends on the efficiency needed for the protection. On the front face of the building, the down conductors are linked at the top to the meshing of the roof. And, down, to specific earthing systems. The distance between two conductors is 10 to 25 meters, and depend on the efficiency needed for the protection. The EN 62305-3 describes the installation procedure for this method. Generally, this method is heavy and expensive, due to the complexity of the structures to protect. 26 capture points, 26 down conductors and a grounded loop earthing system are necessaries to ensure the protection of the structure here below :
The catenary wires protection is a method closed to the meshed cage principle, because it is constituted with meshing of the conductors far from the structure to protect, to avoid any contact with lightning current. Catenary wires are located over the structure to protect, connected to down conductors and specific earthing systems. The width of the meshing and distance between the down conductors must respect the same rules as for the meshed cage. The EN 62305-3 describes the installation procedure for this method. Generally, this method is heavy and expensive, due to the complexity of the structures to protect.
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 prote tio radius depe ds o the early strea er e issio alue of the air ter i al Î&#x201D;t i Âľs , 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 60Âľs) 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 :
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
Thimble
Joint all phase wire/ cable with the help of crimping tools and lugs Step – 1
Separation Sheet Fixed the separation sheet between all wires/ cables
Step – 2
Gel / Silicon Close the filled Silicon enclosure from top and bottom , complete installation is done.
Step – 3
Features : Provides cable with cable connections and jointing wires in switchboard / electric boxes Being a jelly it can be easily fit into molds of any shape and size. Helps in safeguarding electrical connections and also protects electrical connection joints from catching fire, sparking and leakage current. Eradicates all the possibilities of fire, electric shocks and sparks, etc. causes due to improper electrical connection joints and safeguards structure, equipment and person. Offers safety to your electrical joints from ageing, corrosion, moisture and also observes leakage current.
Advantages : Nontoxic Insulating Highly reliable operation Maintenance Free Repairable Cost Effective High repeat value Elasticity Shape retention
JMVâ&#x20AC;&#x2122;s Clients
Neeraj Saini – 9910398538 Rahul Verma – 9910398535 Manav Chandra - 9910398999 manav@jmv.co.in