Electrical Hazards And Safety By Kevin Burke

Electrical Hazards And Safety By Kevin Burke
Electrical Hazards and Safety
Kevin Burke
1.INTRODUCTION
Everywhere nowadays there is electricity and devices that rely on electricity. Society is driven by the need for energy and "electricity generating plants
now consume two–fifths of U.S. energy from all sources, including about 90% of America's coal and nearly 30% of its natural gas" (http:/
/needtoknow.nas.edu/energy/energy–sources/electricity/). The world today would not be nearly as advanced had it not been for the increased use of
electricity. Electricity has so many uses they are seemingly innumerable, from use in air conditioners to cool people down. To making sure that
individuals can see in everyday life with the use of lighting, the list could go on forever. However with this massive increase in electricity use there
are also very drastic safety precautions that must be followed to ensure safe use of electrical products. Safety is a huge part of using electricity
because having even a low voltage travel through the human body can kill someone. From a very young age it is instilled that electricity is not
something to play with and that adults should make sure an activity is safe.
Safety is not only important for humans but also for the infrastructure of the electrical components. People should ensure that they use surge protector
and all of their wires are safe and not stripped. This will guarantee safety for the products in their homes. It is crucial that anything that has
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Electrical grounding best practices
A good grounding system should provide the maximum safety from contact, electrical system faults and lightening. For a grounding system to perform
efficiently over long periods of time, it should be designed and installed properly using reliable materials and proven techniques.
Grounding is important for three main reasons;
Safety to people
Protection of equipment and building which may come into contact with the live wires or systems.
Electrical noise reduction
The electrical ground provides a current return path to the earth mass. The earth is usually considered to be an electrically neutral body with equal
number of positive and negative charges which are distributed *** throughout the earth and any given time.**** RD
The effectiveness of the grounding system depends on the individual components. Some of the factors to consider include
The grounding conductors : that connects noncurrent carrying metal parts to raceways, enclosures, etc
Grounding electrodes
Grounding Connectors
Type of the soil and environment Components of a building grounding system
The building grounding system consists of
The exterior grounds
The electrical service ground
Building interior grounding
Equipment grounding and bonding
Lightening protection
Basic grounding practices
The electrical service ground – Ground bus
Installation has a bus bar which provides a single point ground. This is usually a heavy copper bar or wire of low

Workplace Safety : Safety And Safety
Organizational Safety Program Safety in the workplace has become a major focus on many organizations due to many accidents and deaths. When
employees enter their place of work they expect to work in a safe environment in which they can work with our anything to worry about. As it is
known that some workplaces are safer than others. Workplace safety is a priority in for most workplaces that is why employers care about
employee's safety. Workplace safety is a kind of management responsibility in places of employment that includes health and safety of workers. In
order to provide workers with safety and health, managers focus on safety that can include such elements as: management leadership and obligation;
worker involving accountability; ensuring the work is carried out safely and effectively; different safety plans, programs and policies, processes,
procedures, and practices; safety inspections for workplace hazards; safety goals, objectives and program audits; safety tracking and metrics;
identification of hazards and control; safety education, training and communications. Talking about workplace safety, it is necessary to mention health
and safety hazards. According to definition of Rajagopal J., "a 'hazard' is something that in itself may cause harm or injury." (Rajagopal,
2009).Workplace hazards include moving parts of machinery, flammable or toxic substances and lifting heavy things. Also hazards can be included in
slippery floors, electric energy, working at heights

he engineering discipline I chose is electrical and the company I will like to work for is Exxon
Mobil
Introduction
Electrical engineering is a profession and it is my responsibilities as an engineer to have the highest standard of integrity and honesty. The safety of
the people must be my priority always and I must provide my services at all time in fairness, honesty, impartiality, and equity. I must always abide by
engineering code of ethics under whichever companies I find myself.
My personal codes of ethics include:
пЃ¶ As an engineer, I will always put public safety before any other thing. For my own personal use, I have a certification in public safety
пЃ¶ Honesty and integrity in all my doing tends to be my main priority
пЃ¶ I keep to all my promise and I am very trustworthy
пЃ¶ I have strong respect and concern for all my clients/employees
пЃ¶ I am law–abiding
пЃ¶ I have strong loyalty for my employer/clients
пЃ¶ I always show fairness in dealing with my clients/employer
пЃ¶ I will always put epistemology in practice
пЃ¶ To demonstrate their honest at all time, I will always advise my clients or employers whenever I find out that a project will not be a success
пЃ¶ I will not put my own interest to jeopardize the dignity and integrity of my profession
пЃ¶ My primary objectives must be to serve the public
пЃ¶ I must always find a way to avoid all sort of conduct that might deceive the public
Exxon Mobil code of conducts
Exxon Mobil stated that all employees are expected to uphold the highest

Electrical Contracting Research Paper
When it comes to electrical safety in your northwest Florida home or business, there is no room for error. Our decades of electrical contracting
experience will ensure that your electrical projects will be safe, and up to code. When choosing an electrical contractor only the best will do!
We are highly trained and continually educated on the current standards for residential and commercial electrical code. It is our passion to provide
superior service, especially when it comes to ensuring EVERYsafety standard is met. There are no cutting corners in the electrical contracting industry.
You will rest assured that any electrical project such as ground fault interrupter circuit installation, service panel maintenance/installation, will always

Denver Electrical Safety
Denver is a well–established city that has many old homes. Although there are plenty of new people in Denver, there are many who have lived here
their whole lives. Perhaps even in the same home. Older homes are known for having electrical issues. Whether that be a noticeable issue with the
electrical, not enough outlets or out of code outlets; either way any electrical issue is annoying and sometimes even dangerous. One way to protect
your home and family from electrical injuries or damages is to have the correct outlets installed. Electrical outlets do much more than just provide
electricity. Depending on the type of electrical outlet you have in your home, it could be a life saving device. There are several different types of
electrical outlets...show more content...
That is because these outlets have a feature that allows them to shut off power quickly when it detects an electrical danger. Common places that you
will see GFCI's are in bathrooms, kitchens, laundry rooms, garages and outside. Arc Fault Circuit Interrupter AFCI's are used to reduce the risk of
electrical fires. They work by interrupting power when an arc fault occurs. An arc fault is when a high–power discharge of electricity occurs between
two wires. This creates heat which can then turn into a fire. These are common when there are faulty connections in the home due to corrosion or poor
electrical installation. The Consumer Product Safety Commission has estimated that over 50% of the electrical fires that occur each year could be
prevented by AFCI's. Tamper Resistant Receptacles If you have small children in your home, this outlet is for you. These outlets protect your child
from electrical shock that is caused by tampering with the electrical outlets. The outlet has a mechanism that only allows a 2 bladed or grounded plug
to be put into the outlet. That means if a fork is pushed into the outlet, the shutters will not allow it to reach the

Hand And Machine Tool Safety Essay
Hand and Machine Tool Safety in a General Engineering Workshop
INTRODUCTION
Engineering workshop is all about machines and mechanics .As without those machines engineers are like humans without hands. A machine helps
them in making products or does a new invention which is for the betterment of society .the workshop includes a lot of potential safety hazards.
Engineering workshops however are exceptionally valuable to us yet they can turn out to be risky for us due to their unsafe surroundings some of
the time. So consequently with a specific end goal to do our great work in a engineering workshop, a sorted out way to deal with well being and
safety is basic .However with precautions these types of hazards can be put an end to. There are many hand and machine tool safety in an engineering
workshop due to which we can eliminate hazards.
Necessities of an Engineering workshop
Continuously wear eye protection when utilizing power worked hand or machine apparatuses, or while performing physical tests that could prompt eye
harm.
Running in workshop is prohibited
Guarantee that individual apparel is suitable to the workshop conditions, e.g. safety
Footwear with steel topping. Thongs or open footwear ought not be worn in the
Workshop region. Singlets, tank tops or comparable dress are not suitable for wearing in the
Workshop.
There should be written safety policy for an engineering workshop.
Smoking is prohibited.
Keep all fire–escape routes completely clear

Essay On Fire Prevention
Fire Prevention Through Infrared Scan of Electrical Equipment
Electrical Fires
According to the latest statistics from NFPA's report on "Fires in Industrial or Manufacturing Properties", found here: http://www.nfpa.org
/news–and–research/fire–statistics–and–reports/fire–statistics/fires–by–property–type/industrial–and–manufacturing–facilities
/fires–in–us–industrial–and–manufacturing–facilities, electrical distribution and lighting equipment caused 11% of fires and accounted for 15% of
direct property damage in industrial or manufacturing facilities from 2009 to 2013.
A key way to prevent electrical fires is through predictive maintenance to detect the onset of a condition that could eventually lead to a fire, then
correcting that...show more content...
(3) Temperature differences of 16В°C and above indicate major deficiency; repairs should be made immediately. Figure 1– Infrared Image
NFPA 70B– Section 11.17 provides guidance on the use of infrared scans to determine the condition of various elements of an electrical power
distribution system and to provide information that is used:
1.To determine whether any corrective maintenance or replacement is necessary or desirable
2.To confirm the ability of the element to continue to perform its design function adequately
3.To chart the gradual deterioration of the equipment over its service life
Preparation for Infrared Scan
Very little preparation is required of the organization requesting the infrared scan. The thermographer and the qualified electricians opening the panels
should follow NFPA 70E– Standard for Electrical Safety in the Workplace. This could include the need for arc flash analysis, training, and specific
personal protective equipment (PPE) for all personnel who will be standing in front of open, live electrical panels. [See NFPA 70E– Tables 130.7
(c)(9) (a), (c)(10), (c)(11) for details on PPE required]
Infrared Scan
Infrared (IR) scans should be performed while electrical equipment is under load, preferably peak load conditions, but not less than 40% of the rated
load of the electrical equipment being inspected.
Infrared scans typically include the

Electrical Engineering
Electrical Engineering Work Performed Electrical Engineers research, develop, design, and test electronic components, products, and systems for
commercial, industrial, medical, military, and scientific applications (Cosgrove 749). They are concerned with devices that use small amounts of
electricity that make up electronic components such as integrated circuits and microprocessors. By applying principles and techniques of electronic
engineering they design, develop, and manufacture products such as computers, telephones, radios, and stereo systems (EGOE, 121). Electrical
engineers touch everyone lives through the things they have designed or created. Electrical engineers have invented the lights in your house, the
television, the...show more content...
They set up a manufacturing plan for the product their company will be making (Kunz 12).
Field Service engineers work between the manufacturer and the consumer by installing the product for consumers and by helping them with any
technical support they may need (Kunz 12). The specialties that one can commit to in engineering can vary significantly. For example, they can
include acoustics, signal processing, lasers, robotics, electromagnetic compatibility, geosciences & remote sensing, or even vehicular technology
(Stine 300). Work Environment Most electrical engineers work in private industries such as television or telegraph companies (BLS 5). Others are
hired by the federal government for military, space programs or through engineering firms (BLS 5). Others work on a contract basis where they are
self–employed, and work independently as contractors or consultants (BLS 5).
Electronic engineers work mainly in a comfortable indoor environment usually in their offices and at their desks (Kunz 14). Engineers who are
involved in research and design also work in specially developed laboratories where they can conduct experiments and test their products. These
laboratories have a lot of high tech equipment that allow engineers to create a new product and test it so that it could be used for a solution in real
world problems. Engineers who are involved in production spend most of their time in production

Safety for Electrical System Workers Essay
"Electrical Safety is not an option – it is absolutely necessary for workers and employers alike".
Safety in the workplace is job number one for employer and employee alike. It is especially important for those who install and service electrical
systems. Nothing can replace a worker or loved one that has died or suffered the irreparable consequences of an electrical accident. No matter how
much an employer tries to safeguard its workers or how much safety training is provided; the ultimate responsibility lies with the worker. The human
factor is part of every accident or injury. The purpose of this paper is to identify electrical safety hazards and present ways to minimize or avoid their
consequences. It is a guide for improving electrical...show more content...
This act and relevant rules impose several safety requirements as electricity supply undertakings/ manufacturers/ contractors/ and users. They are
mandatory for every manufacturers, contractors, and users of electrical installation equipment's and electricity supply undertakings.
Investigation of electrical accidents reveal that at least every accident from small shock to a major fire disaster is caused by ignorance
/ inexperience or carelessness at one or more stages and failure of safety management. Why is Electrical Safety so Important? Electrical hazards
have always been recognized, yet serious injuries, deaths, and property damage occur daily. Organizations like the US Department of Labor and the
National Safety Council compile statistics and facts on a regular basis. The following table demonstrates the importance of electrical safety. 97% of
all electricians have been shocked or injured on the job. Approximately 30,000 workers receive electrical shocks yearly. Over 3600 disabling electrical
contact injuries occur annually. Electrocutions are the 4th leading cause of traumatic occupational fatalities. Over 2000 workers are sent to burn centers
each year with severe Arc–Flash burns. Estimates show that 10 Arc–Flash incidents occur every day in the US. 60% of workplace accident deaths are
caused by burn injuries. Over 1000 electrical workers die each year from workplace accidents.
Who is exposed? Electric field

Reflection On Electrical Engineering
ENGR10004 : ESD 1 Final Reflective Journal
For engineering study, there are four parts to introduce separately.Goal setting, Community Building, Academic development and Personal
Development. Those are the basic methods to get high level understanding and learning.
Firstly, Setting up a goal to make sure that the final stage I want to reach.
Engineering is a very traditional subject , contain high quality technology and strong practice.It is based on design, calculation, imagination, ability of
judgment, theoretical knowledge and so on.The sufficient patient and good teamwork is the key to the core,which can help solve the complex problem
in engineering.Furthermore,engineering is the past and future of human with the world development,create a safety society and living environment
push people towards the future that...show more content...
Electrical engineering is applied in lots of ways, especially in the internet, electrical can be a signal to transport everywhere and control different
function. So the new high clean resources and transition of the electrical would be a topic that I would like to dig deeply.
As for me, these are three reasons why I still choose to study engineering. Sense of achievement, high interest in engineering and ideal occupation for
future.
Sense of achievement is the most excited emotion always make me feel satisfying . Engineering is full of complex problem which may use
knowledge in math,physics and so on. When I got problems , I would face the challenge and use all I have learned to solve the problems . After the
problems are solving , the feeling of accomplishment came out from my heart ,push me forward to explore the new worlds in

Electrical Engineer Essay
ELECTRICAL ENGINEER
DESCRIPTION
&#8220;Electrical engineers design, and evaluate the manufacture, testing, installation, operation, and maintenance of electrical and electronic
components, equipment and systems.';1 Electrical engineers work with an array of equipment and machinery, such as transformers, switches, electrical
appliances and types of generators, and are considered in fields involving communications, radar, aerospace guidance, medical and biomedical research
and computers.
ENVIRONMENT
Precision is a very regarded value for an electrical engineer. The use of hands on techniques and a vast knowledge of mathematics makes for the
engineer to be very detailed in...show more content...
Opportunities are higher for those who can maintain a technological edge. competition is relevant in the job market. On a national level, faster than
average growth is expected in future years.
PREPARATION
&#8220;A bachelor of science degree in electrical engineering, electronics, or physics from a school accredited by the engineer&#8217;s
Council for Professional development is the best preparation for thisfield.';2 A aster&#8217;s degree is highly recommended. A keen knowledge
of math, physical sciences, and engineering principles is needed. A knowledge of tools, machinery and electrical equipment also helps. Related
occupations include electrical safety engineers.
They differ in that they perform safety investigations to detect unsafe conditions. Also related are fiber–optic engineers, inventors, and highway
electrical engineers.
MY VIEW
I researched this field because I have a high interest in math and science, and I am always interested in how things work and function.
I like how engineering is an exact concept. I like precision and accuracy, and how the jobs are hands on and are never repetitive. The pay is good and
livable, and you do not have to spend an eternity going to school. This field does require constant thinking, so headaches may occur often. Much math

and science needs to

Essay on Electrical Hazards
Electrical Hazards Electrical Hazards, risks of injury or death arising from exposure to electricity. Electricity is essential to daily life, providing heat
and light and powering appliances in homes and factories. It must, however, be treated with great care, because the consequences of an electrical fault
can be serious and sometimes fatal. Generally voltages greater than 50 volts can present a serious hazard and currents of more than about 50 milliamps
flowing through the human body can lead to death by electrocution. A shock occurs when a "live" part of some device is touched, so that current...show
more content...
Most were males between 15 and 64 years of age, carrying out do–it–yourself and maintenance work. Several deaths were caused by people touching
the live end of a cable cut by an electric lawnmower. Electrical faults in the home cause around 25,000 fires each year, killing or injuring over 2,000
people. Electrical Installations Most countries have detailed regulations governing the standards to which electrical installations must conform. In the
United Kingdom the Wiring Regulations (BS 7671), produced by the Institution of Electrical Engineers (IEE) and the British Standards Institution
(BSI), prescribe the wiring standards to be adopted. The Electrical Contractors Association (ECA) and the National Inspection Council for Electrical
Installation Contracting (NICEIC) require their members to observe these requirements to minimize any danger. Electrical Products In Britain,
domestic electrical products must satisfy the requirements of the Electrical Equipment (Safety) Regulations (1994), which were made under the
Consumer Protection Act (1987), and implement the Low Voltage Directive (73/23/EEC) of the European Union (EU). The technical interpretation of
the legal requirements is

Electrical Shock Essay
ZIAUDDIN COLLEGE OF PHYSICAL THERAPY
Electrical Shocks, Safety Measures, and Maintenance of Line–Powered Devices
Subject: physical agents & electrotherapy–I
I.BACKGROUND AND PURPOSE
A.Electrical Shock
B.Line–Versus Battery–Powered Devices
C.Dangers Of Line Powered Devices
D.Physiological Damage
E.Purpose Of Chapter
II.GENESIS OF AN ELECTRICAL SHOCK
A.Ground–Fault Pathway
B.Device Electrical Insulation
C.Body As Pathway
III.PROTECTION AGAINST ELECTRICAL SHOCKS
A.Ground–Fault Circuit Interrupter Receptacle
B.Operating Mechanism
C.Testing GFCI Receptacle
IV.PREVENTION, OPERATIONAL SAFETY, AND MAINTENANCE
A.Overall Measures
B.Preventive Measures
C.Operational Safety Measures
D....show more content...
2.Danger

Usage of line–powered device could be dangerous. As leakage of AC current (i.e. 60 hertz) in the body if it is of sufficient amplitude and duration it can
cause motor nerves depolarization thus induce involuntary tetanic like muscle contraction. As in most of the humans muscle contraction frequencies
are 40 and 60 hertz.
3.Battery–powered devices
Leaking of current from a battery–powered device is not dangerous. They are safe because there is continuous 0 hertz DC current regardless of its
amplitude and duration. This low voltage current cannot be able to cause nerve depolarization and thus couldn't induce titanic muscle contraction.
D.Physiological damage
When a 60 hertz AC current of 5 mA passes through a body it may cause unwanted physiological changes such as tissue burn and tetanic muscle
contraction which may cause severe body injuries including death.
1.Tetanic muscle contraction
The victom may showed minor–to–vigrous tetanic muscle contractions which may cause respiratory arrest or cardiac arrest and it leads to death by
electric shock.
2.Tissue burn
When 60 hertz AC current passed through a body it cause burn injuries primarily at skin surface and secondarily in deeper tissues because skin tissues
offer more resistance to current than the deeper tissues. Deeper tissue burn injuries are stronger if the skin is in

Workplace Safety Essay
TABLE OF CONTENTS EXECUTIVE SUMMARY 1.0 INTRODUCTION1 1.1 Background1 1.2 Workplace Safety Defined1 2.0 DISCUSSION OF
FINDINGS2 2.1 Workplace Injury Statistics2 2.2 Types of Safety Training6 2.3 Negative Association with Training10 2.4 Positive Association with
Training12 3.0 CONCLUSION AND RECOMMENDATIONS14 3.1Why safety training in a workplace is a necessity?14 LIST OF ILLUSTRATIONS
1 Types of injury5 2 List of hazards of a job6...show more content...
Safety in a workplace also describes policies and procedures in place to ensure the safety and health of employees within a workplace which
involves hazard identification and control according to government standards and ongoing safety training and education for employees. Safety
training is a federal law that oversees the requirement of an employer to provide employees with a workplace free from hazardous conditions.
Employees must be responsible to ensure they are taking all the precautions to protect themselves and their fellow workers. Safety training is a
major concern in today's workplace for both employers and employees in which action have been taken to overcome this problem. This research of
workplace safety training was conducted by the following: using internet to browse different safety training websites, books, magazines, and
library, also a personal interview. This information will give us a clear understanding of why safety training is important in a workplace and to
ensure safety is being followed. Discussion of findings Workplace injury statistics This research will indicate the statistics of injuries in the
workplace by showing how blue collar jobs have more injuries than white collar workers, injuries between men and women. Blue collar workers are
considered at higher risk because of their types of job and where an injury is more likely

Electrical Engineering Importance
Electrical engineers are an important part of our lives. According to an article on "Truity", "Electrical engineers design, develop, test, and supervise the
manufacturing of electrical equipment." Electrical engineers work around forty hours a week and will sometimes work overtime ("State University").
A bachelor's degree or higher in electrical engineering is needed to get the job. Their median wage is about 71,610 dollars to 75,770 dollars per year
("State University"). They receive a lot of money maybe because it is a hard job to do or are very important. Without them would not have power
plants or other things we use on a daily basis. Electrical engineers sometimes make new ways to use electrical power to develop or improve
products ("Truity"). Some might say that they are very important in today's world since technology is used every day. To get a job in electrical
engineering, a bachelor's degree or higher is needed. It takes at least four to five years to get the bachelor's degree in electrical engineering. Some
colleges offer classes for electrical engineering. According to an article on "State University", "Some colleges offer work–study programs in which
students receive on–the–job training while they are still in school." This will improve chances in getting a job in this field. Certain skills are also
required for electrical engineering. Electrical engineers must be able to use the principles of calculus and other topics of math while working ("Truity").

A Brief Note On Old Electrical Wiring Safety
Adder Hernandez OSHT 1405 OSHA REGULATIONS Old Electrical Wiring Safety According to the National Fire Protection Association, there is a
yearly average of 24,000 home fires attributed to electrical or lighting equipment, causing more than 800 injuries, 300 deaths and $700 million in
property damage. Although electricity in residential homes first began in the later part of the 19th century for the wealthier, by the beginning of the
20th century, electricity in the home was becoming available and more affordable to many people, especially those who lived in urban areas. With
over a century of residential electricity in many cities and towns, the aging of the residential electrical systems is beginning to raise concerns within the
electrical and firefighting departments. Apart from the natural effects that age can have on wire insulation and electrical equipment over time,
residential electrical systems are rarely inspected after their original installation. In addition, the quality of the original installation may be a factor, as
well as bad upgrades or additions that may have been done by a homeowners or others throughout the years. The following are hazards that are
normally found in old electrical systems. Wire insulation. Original knob–and–tube wire used insulation made of gum–rubber. This "rubber" insulation
was actually a mixture of chemicals including hardening agents containing sulfur for curing. These different chemicals, especially sulfur, had a very
corrosive

Licensed Electrician Essay
It is an important consideration in using licensed electrical contractors to resolve any electric repairs in any premise. There is always an element
of risk involved with electrical issues. There are many qualified and trained electricians in the city you live in who can check out the electric
repairs in any premise. Professionalism Licensed electricians offer the right expertise in performing the required electric repairs and installation of
wiring for any home, office or commercial establishment. These electric experts are well qualified with the right range of experience if they have the
coveted license that authorizes them to perform any electric works in any property or premise. The valid electric license authorizes the electrician to
perform all electric projects safely and effectively that would protect the general welfare of the property occupants as well as the physical property.
There may be a myriad of...show more content...
Scope of services Licensed electrical contractors are well qualified in handling any electrical wiring for new or existing houses or any property. There
are times when a property undergoes renovation and new wiring must be undertaken. Licensed electricians in town would understand the connectivity
of the electric mains to the home to apply the best of electric repair techniques and tools for the best outcome. These electricians need to collaborate
with other renovation contractors for a proper synchronization of services to ensure that the renovation project meets the desired deadline of
completion. A trustworthy and professional electrician would also work within the budget. There can be a plethora of electric works required with any
home or commercial establishments. These can be handled professionally by a qualified and licensed

Electrical Safety in the Perioperative Environment
There are numerous ways electricity is employed in the operating room environment, such as X–ray machines, electrosurgical units, monitors, surgical
table and lights, endoscopic cameras and monitors, lasers, and robotics. Each piece of machinery comes with certain safety precautions when using
them in the perioperative environment. Since almost all injuries in the OR result in human error, it is important to follow these precautions to ensure
patient and operating staff safety. The electrosurgical unit (ESU) generated current that is used to cut or coagulate tissue, including fat, fascia, muscle,
internal organs, and vessels. Current flows from a generator to a device that delivers...show more content...
Because laser light does not spread, the laser is ideal for precise surgical applications. The light produced is absorbed by tissue which, in turn, is
consequently "harmed". So it is important to take similar precautions when using the ESU when using lasers. Always check the power cords for frays,
and check to make sure all switches are functioning properly. Also, make sure not to use any inflammable agents

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Electrical Hazards And Safety By Kevin Burke