Lightning can strike up to 10 miles from a storm, averaging 2-3 miles between strikes. It travels at 100 million volts and over 100,000 amps, generating temperatures over 54,000 degrees Fahrenheit. To estimate how far away a lightning strike is, count the seconds between seeing the flash and hearing the thunder, as sound travels about 1 mile every 5 seconds. Proper lightning protection systems use air terminals to intercept strikes, conductors to guide current to ground, grounding rods, and surge protectors to mitigate damage.
Lightning Discharge and Fundamentals of lightning Protectionrajani51
Fundamentals of Lightning
General Principles lightning protection
Lightning Parameters
Measurements Of Peak currents
Advanced Approaches to Lightning Protection
Lightning Discharge
Downward flash
Upward Flash
General principle Of lightning Protection
The presentation deals with principles of protecting buildings/structures and and power systems from effects of lightning.It also deals with protecting the power systems from over voltages arising from lightning and switching.
Lightning Discharge and Fundamentals of lightning Protectionrajani51
Fundamentals of Lightning
General Principles lightning protection
Lightning Parameters
Measurements Of Peak currents
Advanced Approaches to Lightning Protection
Lightning Discharge
Downward flash
Upward Flash
General principle Of lightning Protection
The presentation deals with principles of protecting buildings/structures and and power systems from effects of lightning.It also deals with protecting the power systems from over voltages arising from lightning and switching.
Lightning, Surge Protection & Earthing of Electrical & Electronic Systems in ...Living Online
Few topics generate as much controversy and argument as that of lightning and surge protection of electrical and electronic systems. Poor practices in earthing, and incorrect application and selection of lightning and surge protection devices can be the cause of continual and intermittent problems in a facility, often resulting in lost production and equipment failure.
This workshop looks at these issues from a fresh yet practical perspective and enables you to reduce expensive down time on your plant and equipment by the correct application of these principles. Essentially the workshop is broken down into the methods used to prevent lightning entering a facility such as dissipation arrays and those that divert surge energy away from sensitive equipment.
Dissipation systems are discussed with associated earthing systems. The unique properties of various surge protection devices are reviewed, enabling you to select the correct device suited to the application required. Earthing and surge protection for telecommunications and IT systems are examined in detail as well as the impact of lightning and simple techniques for minimising its impact.
MORE INFORMATION: http://www.idc-online.com/content/lightning-surge-protection-earthing-electrical-electronic-systems-industrial-networks-13?id=6987
Regards, Mr. SYED HAIDER ABBAS
MOB. +92-300-2893683 MBA in progress, NEBOSH IGC, IOSH, HSRLI, NBCS,GI,FST,FOHSW,ISO 9001, 14001,
'BS OHSAS 18001, SAI 8000, Qualified .
study of lightning arrester ' working principal and working of lighning and construction of lightning arrester. and at the end what are the types of lightning arrester how these types are different from each other and what is their working principal and which is used mostly on 500kva substation.
POWER SYSTEM PROTECTION
Protection Devices and the Lightning,. protection,
Lightning protection, Introduction
Air Break Switches
Disconnect switches
Grounding switches
Current limiting reactors
Grounding transformers
Co-ordination of protective devices
Grounding of electrical installations
Electric shock
Lightning protection
Lightning Arrestor
Lightning, Surge Protection & Earthing of Electrical & Electronic Systems in ...Living Online
Few topics generate as much controversy and argument as that of lightning and surge protection of electrical and electronic systems. Poor practices in earthing, and incorrect application and selection of lightning and surge protection devices can be the cause of continual and intermittent problems in a facility, often resulting in lost production and equipment failure.
This workshop looks at these issues from a fresh yet practical perspective and enables you to reduce expensive down time on your plant and equipment by the correct application of these principles. Essentially the workshop is broken down into the methods used to prevent lightning entering a facility such as dissipation arrays and those that divert surge energy away from sensitive equipment.
Dissipation systems are discussed with associated earthing systems. The unique properties of various surge protection devices are reviewed, enabling you to select the correct device suited to the application required. Earthing and surge protection for telecommunications and IT systems are examined in detail as well as the impact of lightning and simple techniques for minimising its impact.
MORE INFORMATION: http://www.idc-online.com/content/lightning-surge-protection-earthing-electrical-electronic-systems-industrial-networks-13?id=6987
Regards, Mr. SYED HAIDER ABBAS
MOB. +92-300-2893683 MBA in progress, NEBOSH IGC, IOSH, HSRLI, NBCS,GI,FST,FOHSW,ISO 9001, 14001,
'BS OHSAS 18001, SAI 8000, Qualified .
study of lightning arrester ' working principal and working of lighning and construction of lightning arrester. and at the end what are the types of lightning arrester how these types are different from each other and what is their working principal and which is used mostly on 500kva substation.
POWER SYSTEM PROTECTION
Protection Devices and the Lightning,. protection,
Lightning protection, Introduction
Air Break Switches
Disconnect switches
Grounding switches
Current limiting reactors
Grounding transformers
Co-ordination of protective devices
Grounding of electrical installations
Electric shock
Lightning protection
Lightning Arrestor
Overvoltages are an increase of voltage on the electric line, measure between two conductors, which can produce damage on the installations
and the electric equipments.
There are two different types: transient and permanent.
Permanent or power frequency overvoltages are characterized by relatively long duration (several cycles) There are usually caused by:
- Defect connection of the neutral.
- Power consumption lowered.
Transient overvoltages are very short duration increases in voltage
between two conductors or between a conductor and the ground. They
can be on account of atmospheric electrical discharges (lightning), by
switching or by electrical faults (contact with earth or short circuit).
Manufacturers and Suppliers of Over Head Transmission Line Material like Gang Operated Air Break Switch, AB Switches, Electrical Bushing, Electrical Fuses, Dropout Fuse, Horn Gap Fuse such as Solid Core DO Fuse, AB Switch Tilting Type, AB Switch Rotating Type, AB Switch Double Tilting Type, AB Switch 2 Post Type, DO Double Stack Fuse, DO Solidcore Fuse, DO Fuse, Double Stack Rotating Isolators, Solid Core Rotating Isolator, 66 KV Isolators, Stay Set With, Stay Wire and ACSR.
Best Education regarding Lightniing and Protection Infra /Solar Railways/Airports/Smart Cities/Dept of Space (Picture and document are collected from various Sources Intention to offer best information about Lightning and Protection
(g) From working the speed of sound problems above you may see a r.pdfalliedelectronics
(g) From working the speed of sound problems above you may see a relationship that makes it
easy to estimate how far away you are from a visible lightning flash. These approximations are
close enough. 5seconds=1mile3seconds=1kilometer Count the seconds and estimate the distance.
For example: 7 seconds =57=152=1.4mi.37=231=2.33km4seconds=54=.8mi.34=131=1.33km
(1) 1 second (2) 11 seconds (3) 2 seconds (4) 15 seconds mi, km With a little practice while
watching a clock's second hand you can easily develop the ability to count seconds accurately.
Two methods that are adaptable are to verbalize: 1. One second, two seconds, three seconds, etc.
2. One thousand one, one thousand two, etc. (h) It has been said that "if you hear the thunder you
don't have to fear the lightning," that particular lightning flash, that is. Explain. (i) In the United
States on the average about 200 persons are killed annually by lightning, more than by tornadoes
and more than by hurricanes and floods combined. Of those killed an inordinate number are
golfers, farm equipment operators, and persons on small boats. Explain why these persons are
apparently more vulnerable.
J-3 Lightning and Thunder Lightning is an interesting phenomenon of thunderstorms. It is not
fully understood. It may be that some combination of the violent splitting apart of millions of
raindrops by updrafts and the friction of colliding ice particles of slightly different temperatures
causes unequal positive and negative charges to concentrate in parts of the cloud. There is a
tendency for positive charges to be concentrated at the top of the thunderstorm and negative
charges in the mid levels. At the base of the cloud there are both charges present but negative
dominates. The sudden balancing out of these charges, called a discharge, is what we see as
lightning. The discharge is often within a cloud, but it may be between clouds, between a cloud
and the ground surface, or even from a cloud into the air. It happens very quickly. Our eyes
generally perceive a single lightning flash, but usually there are four or five strokes and not
infrequently more than 20. Do not confuse the two terms, lightning flash vs. lightning stroke. An
individual stroke may last less than .0001 second, with a longer interval but still very brief
periods between strokes. A perceived flash may last from about . I second to almost a second on
occasions where a flash may contain up to 40 strokes. In the latter case it might appear as
fastflickering. In a typical lighting stroke between a cloud and the ground, the process seems to
be this. The negative charge in the cloud reaches sufficient concentration to create an electrical
field strong enough to initiate a discharge. The exchange is started by a rush of negative charges
moving from the cloud toward the ground in a series of rapid stop and start surges. It is called a
stepped leader because of the brief pauses, and apparently it is seeking a favorable path to the
positive charge .
Prepared By
Md. Arifuzzaman Arif,
MSc in Disaster Management,
Department of Geography and Environment,
University of Dhaka.
BSc in Forestry & Wood Technology Discipline,
Khulna University.
Weather & environmental changes affect RF signal severely. Ducting is one of the environmental phenomena that heavily deteriorate the radio performance. This document will give some ideas on root cause, impact & solutions of ducting on Radio Performance.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
![Facts about Lightning ,[object Object],[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)