1) The document discusses electric shock and how it occurs, focusing on factors like current, path through the body, and duration of exposure that determine severity. It also covers effects on the human body.
2) Prevention methods are outlined, including insulation, guarding, grounding, and safe work practices. GFCIs provide important protection by quickly shutting off power if a fault is detected.
3) Ohm's Law is explained in relation to resistance and current flow. Having high resistance through insulation or dry skin helps prevent shocks. GFCIs work by detecting any imbalance between current in the hot and neutral wires.
Electric shock is the physiological reaction, sensation, or injury caused by electric current passing through the (human) body. ... Still larger currents can cause fibrillation of the heart and damage to tissues. Death caused by an electric shock is called electrocution.
An electric shock occurs when a person comes into contact with an electrical energy source. Electrical energy flows through a portion of the body causing a shock. Exposure to electrical energy may result in no injury at all or may result in devastating damage or death.
Electric shock is the physiological reaction, sensation, or injury caused by electric current passing through the (human) body. ... Still larger currents can cause fibrillation of the heart and damage to tissues. Death caused by an electric shock is called electrocution.
An electric shock occurs when a person comes into contact with an electrical energy source. Electrical energy flows through a portion of the body causing a shock. Exposure to electrical energy may result in no injury at all or may result in devastating damage or death.
This presentation on electric shock gives a detailed information on electric shock, types, how to handle electrotherapy equipment's, care or precautions taken while operating any electrical modalities and preventive measures of shock for all physiotherapy students, professionals and other students who use electrical equipment's in their daily routine.
Effects of electric current on human body,Effect of DC current,Effect of AC current,Effect of High Frequency Current on Human Body,Effect of Low Frequency Current on Human Body
This training session covers electrical safety for unqualified workers. “Unqualified” workers are those such as machine operators, operators of powered industrial trucks, construction workers, and others who are not qualified to perform electrical work, but who need to know important information about the hazards of electricity and how to prevent serious injury.
For workers who are authorized to work on or near energized electrical equipment and wiring, additional training is required.
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 .
This ppt describes about,
introduction of fuses, construction, Important terms, advantages and disadvantages, desirable characteristics of fuse element, Current time characteristics, Fuse types - Low voltages fuses and High voltage fuses, Semi enclosed rewirable fuse, HRC cartridge fuses - parts, operation, pros and cons, High voltage fuses and its types, selection of fuses, discrimination
Ammeter is a low resistance galvanometer
It is used to measure the current in a circuit in amperes
Galvanometer can be converted into an ammeter by using a low resistance wire in parallel with the galvanometer
the resistance of the wire depends upon the range of the ammeter
As shunt resistance is small the combined resistance of the galvanometer & the shunt is very low hence the ammeter has much lower resistance than galvanometer
An ideal ammeter has zero resistance
It is the most common instrument used to measure voltage
It measure either AC or DC voltage
It is a measure of the voltage between two points of an electrical current
This presentation on electric shock gives a detailed information on electric shock, types, how to handle electrotherapy equipment's, care or precautions taken while operating any electrical modalities and preventive measures of shock for all physiotherapy students, professionals and other students who use electrical equipment's in their daily routine.
Effects of electric current on human body,Effect of DC current,Effect of AC current,Effect of High Frequency Current on Human Body,Effect of Low Frequency Current on Human Body
This training session covers electrical safety for unqualified workers. “Unqualified” workers are those such as machine operators, operators of powered industrial trucks, construction workers, and others who are not qualified to perform electrical work, but who need to know important information about the hazards of electricity and how to prevent serious injury.
For workers who are authorized to work on or near energized electrical equipment and wiring, additional training is required.
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 .
This ppt describes about,
introduction of fuses, construction, Important terms, advantages and disadvantages, desirable characteristics of fuse element, Current time characteristics, Fuse types - Low voltages fuses and High voltage fuses, Semi enclosed rewirable fuse, HRC cartridge fuses - parts, operation, pros and cons, High voltage fuses and its types, selection of fuses, discrimination
Ammeter is a low resistance galvanometer
It is used to measure the current in a circuit in amperes
Galvanometer can be converted into an ammeter by using a low resistance wire in parallel with the galvanometer
the resistance of the wire depends upon the range of the ammeter
As shunt resistance is small the combined resistance of the galvanometer & the shunt is very low hence the ammeter has much lower resistance than galvanometer
An ideal ammeter has zero resistance
It is the most common instrument used to measure voltage
It measure either AC or DC voltage
It is a measure of the voltage between two points of an electrical current
Electrical safety is a system of organizational measures and technical means to prevent harmful and dangerous effects on workers from electric current, arcing, electromagnetic fields and static electricity
ELECTRICAL SAFETY IN OPERATION THEATRE .pptxSujata Walode
Electrical accidents or shocks occur when a person becomes part of, or completes, an electrical circuit.
To receive a shock,
one must contact the electrical circuit at two points, i.e., a closed loop must exist
and there must be a voltage source that causes the current to flow through an individual.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
The simplified electron and muon model, Oscillating Spacetime: The Foundation...RitikBhardwaj56
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
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আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
MATATAG CURRICULUM: ASSESSING THE READINESS OF ELEM. PUBLIC SCHOOL TEACHERS I...NelTorrente
In this research, it concludes that while the readiness of teachers in Caloocan City to implement the MATATAG Curriculum is generally positive, targeted efforts in professional development, resource distribution, support networks, and comprehensive preparation can address the existing gaps and ensure successful curriculum implementation.
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
4. How Shock Occurs
• The severity of the shock received when a person becomes a part of an
electric circuit is affected by three primary factors:
• The amount of current flowing through the body
• The path of the current through the body
• The length of time the body is in the circuit.
5. Other factors that may affect the severity
Of shock are the:
•Frequency of the current;
• Phase of the heart cycle when shock occurs
• General health of the person.
6. • A difference of less than 100 mA exists between a current that is
barely perceptible and
one that can kill.
• Muscular contraction caused by stimulation may not allow the victim
to free himself or herself from the circuit, and the increased duration
of exposure increases the dangers to the shock victim.
• For example, a current of 100 mA for 3 seconds is equivalent to a
current of 900 mA applied for0.03 seconds in causing ventricular
fibrillation.
• LOW VOLTAGE DOES NOT IMPLY LOW HAZARD
7. • A severe shock can cause considerably more damage to the body than is
visible.
• For example, a person may suffer internal
hemorrhages and destruction of tissues, nerves, and muscles.
• In addition, shock is often only the beginning in a chain of events.
• The final injury may well be from a fall, cuts, burns, or broken bones.
8. How Electricity Hurts PeopleHow Electricity Hurts People
Current Impact on People
1 mA no sensation
1-3 mA sensation, no pain
3-15 mA pain, most people can get away
15-30 mA pain, half of people freeze
30-75 mA pain, breathing difficult, asphyxiation
75-200 mA possible ventricular fibrillation
200-300 mA certain ventricular fibrillation
300+ mA severe burns, heart stops
CurrentCurrent Impact on PeopleImpact on People
1 mA1 mA no sensationno sensation
11--3 mA3 mA sensation, no painsensation, no pain
33--15 mA15 mA pain, most people can get awaypain, most people can get away
1515--30 mA30 mA pain, half of people freezepain, half of people freeze
3030--75 mA75 mA pain, breathing difficult, asphyxiationpain, breathing difficult, asphyxiation
7575--200 mA200 mA possible ventricular fibrillationpossible ventricular fibrillation
200200--300 mA300 mA certain ventricular fibrillationcertain ventricular fibrillation
300+ mA300+ mA severe burns, heart stopssevere burns, heart stops
9. Preventing Electrical Hazards
• Electrical accidents appear to be caused by a combination of three possible
factors:
unsafe equipment and/or installation; workplaces made unsafe by the
environment; and unsafe work practices.
• There are various ways of protecting people from the hazards caused by
electricity.
• These include: insulation; guarding; grounding; electrical protective devices;
and safe work
practices.
10. Voltage is almost always a constant so
electrical current levels are determined
by the resistance to flow. When there
is a potential for electrical shock we
can protect ourselves by maximizing
our resistance to current flow. This is
done by wearing insulating shoes and
gloves, and by not making direct
contact with a source of ground
potential such as plumbing or other
sources of ground.
V = I R
V = electrical potential (volts)
I = electrical current (amps)
R = resistance (ohms)
Ohm’s Law of Electricity
11. Our skin provides us with a natural barrier or resistance of approximately
1,000 to 100,000 ohms depending on several factors including skin
thickness and surface moisture.
12. Lower levels of AC than DC will produce painful shocks in humans while lower
levels of DC than AC can lead to fibrillation of the heart muscle. Women are
more sensitive to the effects of both AC and DC than are men.
Effects of Electrical Shock on the Human Body
Direct Current Alternating
Men Women Men Women
Perception Threshold 5.2 3.5 1.1 0.7
Painful Shock 0.5% 62 41 9.0 6.0
Painful Shock 99.5% 90 60 23 15
Ventricular Fibrillation 500 500 675 675
All Units are in milliamps
13. Extension cords are approved for temporary use only. If extended use is required,
hard wiring such as a new outlet should be installed. Extension cords are easily
frayed, a condition which may expose bare wires. If not properly placed,
extension cords may also become a trip hazard.
Extension Cord Hazards
14. Power cords are doubly insulated and should be replaced if the outer layer of
insulation becomes frayed exposing wires.
Common Power Cord Problems
Exposed
Wires
16. Shorts cause a great increase in
the flow of current through the
cord producing heat and perhaps
initiating a fire.
Overloads occur when more
current flows through a cord than
it is rated to handle. Power strips
can be overloaded if too many
high current draw devices are
plugged in at one time.
A
B
C
D
Outlet or
Power
Strip
Plug
Short
Normal
V = IR As
resistance decreases, current
increases.
Short circuit
Overloaded circuit
17. Another common way in which power cords can be overloaded is by plugging one
power strip into another. All of the current drawn by any device plugged into any of
the strips must flow through a single cord
Overloaded Circuit
18. Eyewashes should be located away from electrical devices and outlets. Outlets
within six feet of a sink or other source of plumbing must be GFCI protected in
order to minimize shock hazards. An unprotected outlet (non-GFCI) is illustrated
above.
Outlet without GFCI
Water and Electricity
19. A GFCI or ground fault circuit interrupter shuts off the flow of current upon
sensing a fault condition such as an electrical shock. Switches quickly open in
the GFCI device in order to prevent the shock victim from receiving a lethal
amount of electricity.
Switches
Hot Line In
Neutral Line In
GFCI
Receptacle
Current
Sensor
Function of a Typical GFCI
Load
20.
21. • A (GFCI) is an electrical device which protects personnel by detecting
potentially hazardous ground faults and quickly disconnecting power
from the circuit.
• Any current over 8 mA is considered potentially dangerous depending
on the path the current takes, the amount of time exposed to the shock,
and the physical condition of the person receiving the shock.
• A GFCI compares the amount of current in the ungrounded (hot)
conductor with the amount of current in the neutral conductor.
• If the current in the neutral conductor becomes less than the current in
the hot conductor, a ground fault condition exists.
• The amount of current that is missing is returned to the source by some
path other than the intended path (fault current).
• A fault current as low as 4 mA to 6 mA activates the GFCI and
interrupts the circuit.
• Once activated, the fault condition is cleared and the GFCI manually
resets before power may be restored to the circuit
22. Approved Treatment for Physical Shock Patients
1) Keep patient lying down
2) Keep airway open
3) Elevate patients’ legs if no bones are broken
4) Keep patient warm if conditions are cool or damp
5) Give fluids if patient is able to swallow
6) Never give alcohol to patient
7) REASSURE the patient
23. Dry chemical extinguishers
(also know as ABC
extinguishers) are approved for
fighting electrical fires. The
label indicates the type of
extinguisher that is present.
Electrical fires should only be
fought if the situation is well in
hand. If you feel
uncomfortable fighting a fire,
pull the alarm and exit the
building.
Small
Nozzle
Test tag
should be
current
ABC
indicated
on label
Electrical Fires
25. Stay clear of bare wires.Stay clear of bare wires.
Use GFCIs, they save lives!Use GFCIs, they save lives!
Never retouch anything thatNever retouch anything that
has given you a shock.has given you a shock.
Protect cord insulation.Protect cord insulation.
Stay clear of power lines.Stay clear of power lines.
In Summary...In Summary...