The document discusses electrical hazards and safety. It covers basic electricity concepts like static electricity, current electricity, direct current, alternating current, voltage, current, and resistance. It then discusses electrical hazards like shock, electrocution, burns, arc flash, and fire. Common electrical hazards and injury factors are also outlined. The document also discusses hazard controls through engineering, administrative and PPE methods. It covers inspection and maintenance of electrical equipment and systems.
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 is basic electrical safety power point lecture that too useful for principal training non-electrical workersprevent lectrocution accidents in work place
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 is basic electrical safety power point lecture that too useful for principal training non-electrical workersprevent lectrocution accidents in work place
Online Electrical Courses addresses electrical safety tips requirements that are necessary for safety and includes why electricity is dangerous and how it works.
Complete Guide to Electrical Safety in the Workplacehudsonelectrical
The National Safety Council indicates that electrical hazards cause nearly one workplace fatality every day. Therefore electrical safety is especially important in the workplace. In this presentation here is a complete guide to workplace electrical safety. Visit: hudsonelectricalnb.com.au
Checkout OSHA's workplace electrical safety guidelines that both employee and employer should be aware of. Make your facility safer with Current Solutions PC's workplace electrical safety program that protects your facility and employees against all sorts of electrical hazards. Visit www.CurrentSolutionsPC.com now.
Online Electrical Courses addresses electrical safety tips requirements that are necessary for safety and includes why electricity is dangerous and how it works.
Complete Guide to Electrical Safety in the Workplacehudsonelectrical
The National Safety Council indicates that electrical hazards cause nearly one workplace fatality every day. Therefore electrical safety is especially important in the workplace. In this presentation here is a complete guide to workplace electrical safety. Visit: hudsonelectricalnb.com.au
Checkout OSHA's workplace electrical safety guidelines that both employee and employer should be aware of. Make your facility safer with Current Solutions PC's workplace electrical safety program that protects your facility and employees against all sorts of electrical hazards. Visit www.CurrentSolutionsPC.com now.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
3. FORMS OF ELECTRICITY
Static Electricity
is an imbalance of electric
charges within or on the surface of
a material. The charge remains until
it is able to move away by means of
an electrical discharge.
5. FORMS OF ELECTRICITY
Dynamic or Current Electricity
Dynamic electricity is the flow of
electric charges through a
conductor; in other words, an
electric current.
6. TYPES OF ELECTRIC SYSTEM
Direct Current (DC)
is the unidirectional flow of electric charges
characterized by two distinctive polarities, positive
(+) and negative (-)
8. TYPES OF ELECTRIC SYSTEM
Alternating Current (AC)
The flow of electric charge periodically reverses
direction
Affected by frequency of alternation (50 Hz in
Oman)
Polarity is not fixed to positive or negative
Can be single phase
Red wire for line
Black wire for neutral
Yellow/green wire for earth
9. ALTERNATING CURRENT (AC)
Can be three phase
Red, Yellow, Blue wire for line
Black wire for neutral
Yellow/green wire for earth
10. VOLTAGE, CURRENT, RESISTANCE
Voltage
force that causes the electron to move
Current
change of charge with time.
quantity of change that moves along a conductive
path
Resistance
opposition to current
12. TYPES OF MATERIALS
Conductor
material which permits the flow of electric
charges in one or more directions
Wires, common metals such as copper, iron,
steel, aluminum
Insulator
Material that does not allow electricity to flow
In some cases it allow electricity
Rubber, paper, wood
Semi-conductor
Material whose electrical conductivity falls
between conductor and insulator
21. S = SHOCK
• Shock results when
the body becomes
part of the
electrical circuit;
• Electrical shock is
defined as a reflex
response to the
passage of electric
current through the
body.
22. A = ARC FLASH/BLAST
An arc flash is the sudden release of
electrical energy through the air when a high-
voltage gap exists and there is a breakdown
between conductors.
23. F = FIRE
Most electrical fires
result from problems
with faulty electrical
outlets, old wiring,
problems with cords
(such as extension and
appliance cords),
plugs, receptacles, and
switches
24. E = EXPLOSION
An explosion can occur
when electricity ignites an
explosive mixture of
material in the air.
25. CONTACT WITH ENERGIZED SOURCES
The major hazards regarding
contact with energized sources
are electrical shock and burns.
39. FACTORS INFLUENCING SEVERITY
The severity of electric shock or the amount of
current which flows on the body depends on
Frequency of supply
Level of voltage
State of the point of contact with the body
Duration of exposure
Resistance of the body
40. FREQUENCY OF SUPPLY
The frequency of supply here in
Oman is 50Hz. This frequency is
close to that of heart when
functioning properly. It can have an
effect of disrupting the operation of
the heart causing it to beat in a
disagreeing manner, to fibrillate
41. LEVEL OF VOLTAGE
It is the driving force behind the flow of
electricity.
According to ohm’s law: I = V/R
Current is proportional to the voltage
LOW VOLTAGE DOES NOT MEAN LOW HAZARD
42. DANGERS IN LOW VOLTAGE SYSTEM
Secondary shock hazards
Arc in a low-voltage system has the same
potential for igniting explosive materials
Short circuit
43. CURRENT PATH
• From one finger to another
finger the effect will be
concentrated between two
points
• From one hand to another
hand, current will pass
through the heart
• From left hand to right foot,
current will pass through vital
organs
44. DURATION OF EXPOSURE
For an electric shock to have an effect
a person needs to be in contact with
the circuit for sufficient time. The
longer the person is in contact with
the current the more harm it may
cause
45. RESISTANCE
A rough value for the resistance of the human
body is 300-1,000 Ohms. Naturally, the resistance
also depends on the path that electricity takes
through the body - if the electricity goes in the left
hand and out the right foot, then the resistance will
be much higher than if it goes in and out of
adjacent fingers.
Other factors affecting resistance are
Body’s chemical make – up
Dryness
Thickness of skin
Clothing being worn such as shoes and gloves
46. HAZARD OF STATIC ELECTRICITY
The main hazard of static electricity
is the creation of sparks in an
explosive or flammable
atmosphere. These sparks can set
off an explosion or fire. The danger
is greatest when flammable liquids
are being poured or transferred.
47. HAZARD OF STATIC ELECTRICITY
For static electricity to be a hazard, four
conditions must be met:
There must be a means for a static charge
to develop.
Enough energy must build up to cause
ignition.
There must be a discharge of this energy
(a spark).
The spark must occur in an ignitable
vapour or dust mixture.
48. HOW TO IDENTIFY WORKPLACE HAZARDS
Create a hazard scenario
Where it is happening (environment),
Who is affected or what it is happening (exposure),
What causes the hazard (trigger),
The outcome that would occur should it happen
(consequence), and
Any other contributing factors.
49. HOW TO IDENTIFY WORKPLACE HAZARDS
Staff in the workplace should provide answer to
the following questions
What can go wrong?
What are the consequences?
How could it arise?
What are other contributing factors?
How likely is it that the hazard will occur?
50. HOW TO IDENTIFY WORKPLACE HAZARDS
Document the answer to these questions
Job Location: Analyst: Date:
Task Description:
Hazard Description:
Hazard Controls:
51. SCENARIO
In the Physics laboratory, while
performing an experiment on the
resistance of wire, two alligator clips
came in contact with each other. It
shorted out the terminals and burned
out the power supply
52. ANALYSIS
• What can go wrong?
– The clips were not properly inserted and causes it
to be thrown to the other terminal
• What are the consequences?
– Short circuit that damage the power supply and
cause the circuit breaker to trip
• How could it arise?
– The student or staff did not practice caution while
connecting the clips.
53. ANALYSIS
What are other contributing factors?
The accident happened very quickly and the staff
have no enough time to recover or prevent when
the alligator clip slips away. The experience has
shown that the staff needs an effective training to
effectively control hazard
How likely will the hazard occur?
If there have been near misses or actual cases,
then the likelihood of recurrence would be high
57. REDUCTION
Inspection and testing
Use correct tools and equipment
Reduced voltage
Installation of emergency controls
Residual current device (RCD)
59. ENGINEERING CONTROL
Redesign a process to place a barrier between
the person and the hazard
Remove the hazard from the person, such as
machinery guarding, proximity guarding,
extraction systems
Removing the operator to a remote location
away from the hazard.
60. ADMINISTRATIVE CONTROL
Adopting standard operating procedures
Safe work practices
Providing appropriate training, instruction or
information to reduce the potential for harm
and/or adverse health effects to person(s).
Isolation and permit to work procedures are
examples of administrative controls.
61. PERSONAL PROTECTIVE EQUIPMENT
Use only when
Engineering control is not feasible or totally do not
eliminate the hazard
On the process of developing engineering controls
Safe practices do not provide additional protection
During emergency situation
62. SAMPLE CONTROLS
Hazards Control Measures
Live working Avoid (i.e. No Live Working), use
competent people when essential
Hand tools Regular inspection, testing of electrical
integrity and replacement (where
appropriate)
Heaters (elements) Isolate from combustible material,
guarding, special construction required in
hazardous areas
Machines Periodical inspection, electrical testing
and maintenance, good electrical safety
design (e.g. RCD protection)
Stored energy Good construction, insulation and
earthing protection
63. EXERCISE
List down the hazard controls that you want
to implement. Use the hazard identification
form in Topic 2.
67. FORMAL INSPECTION
Visual Inspection
Frequency depends on the type of equipment and
where it is used
Done by trained staff
Not limited to defects found in the user check.
Includes
Use of correct fuse
Effective cord grip
Secure and correct cable termination
69. INSPECTION FOR FIXED INSTALLATION
Ease of access to isolators
Presence of temporary wiring
Moisture, corrosion and contamination
Burns and discoloration marks
70. TESTING
Done by qualified personnel (Portable
Appliance Testing Certified
PAT pass/fail test
Earth continuity
Insulation resistance
Polarity
How frequent is the inspection and testing
activities?