This document summarizes key electrical safety regulations and guidelines for construction work. It covers:
- OSHA regulations on electrical equipment installation, use, and maintenance.
- Fundamentals of electricity including current, voltage, resistance, and how shocks occur.
- Effects of electric shock on the body and typical household current levels.
- Importance of grounding for protection from shocks and fires.
- Use of ground fault circuit interrupters (GFCIs) and assured grounding conductor programs.
- Lockout/tagout procedures for de-energizing equipment during maintenance.
- Requirements for guarding live electrical parts and marking hazardous areas.
- Daily inspections and protective equipment
Five to 10 arc flash explosions occur in electric equipment every day in the United States. This number does not include cases in which the victim is sent to an ordinary hospital. Instead, these incidents are so severe the victims require treatment from a special burn center.
slide about safety n health more to when we are in situation do in work field repair electrican. how to prevent us from shock electricity.and what to do when we know will happen situation we can get shock by electricity.
Electrical equipment that is live can be exceedingly dangerous to work on.
The majority of installations and maintenance should be done dead, not live. This is a modified expectation that resulted from the realisation that working on or near live electrical equipment was causing too many fatalities or severe injuries to workers.
In the past, performing live installations and repairs was a requirement of the job for electricians.
No longer!
We have discovered the hard way that correctly shutting down machinery before working dead not only saves lives, but also ultimately saves time and money.
Here's a slideshare that explains some basics.
https://www.ask-ehs.com/animation/animated-safety-videos.htm
#maintenance #electrical #job #work #electricalengineering #electricalsafety #slideshare #ehs #safe #animation #safetyanimation
Five to 10 arc flash explosions occur in electric equipment every day in the United States. This number does not include cases in which the victim is sent to an ordinary hospital. Instead, these incidents are so severe the victims require treatment from a special burn center.
slide about safety n health more to when we are in situation do in work field repair electrican. how to prevent us from shock electricity.and what to do when we know will happen situation we can get shock by electricity.
Electrical equipment that is live can be exceedingly dangerous to work on.
The majority of installations and maintenance should be done dead, not live. This is a modified expectation that resulted from the realisation that working on or near live electrical equipment was causing too many fatalities or severe injuries to workers.
In the past, performing live installations and repairs was a requirement of the job for electricians.
No longer!
We have discovered the hard way that correctly shutting down machinery before working dead not only saves lives, but also ultimately saves time and money.
Here's a slideshare that explains some basics.
https://www.ask-ehs.com/animation/animated-safety-videos.htm
#maintenance #electrical #job #work #electricalengineering #electricalsafety #slideshare #ehs #safe #animation #safetyanimation
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Online aptitude test management system project report.pdfKamal Acharya
The purpose of on-line aptitude test system is to take online test in an efficient manner and no time wasting for checking the paper. The main objective of on-line aptitude test system is to efficiently evaluate the candidate thoroughly through a fully automated system that not only saves lot of time but also gives fast results. For students they give papers according to their convenience and time and there is no need of using extra thing like paper, pen etc. This can be used in educational institutions as well as in corporate world. Can be used anywhere any time as it is a web based application (user Location doesn’t matter). No restriction that examiner has to be present when the candidate takes the test.
Every time when lecturers/professors need to conduct examinations they have to sit down think about the questions and then create a whole new set of questions for each and every exam. In some cases the professor may want to give an open book online exam that is the student can take the exam any time anywhere, but the student might have to answer the questions in a limited time period. The professor may want to change the sequence of questions for every student. The problem that a student has is whenever a date for the exam is declared the student has to take it and there is no way he can take it at some other time. This project will create an interface for the examiner to create and store questions in a repository. It will also create an interface for the student to take examinations at his convenience and the questions and/or exams may be timed. Thereby creating an application which can be used by examiners and examinee’s simultaneously.
Examination System is very useful for Teachers/Professors. As in the teaching profession, you are responsible for writing question papers. In the conventional method, you write the question paper on paper, keep question papers separate from answers and all this information you have to keep in a locker to avoid unauthorized access. Using the Examination System you can create a question paper and everything will be written to a single exam file in encrypted format. You can set the General and Administrator password to avoid unauthorized access to your question paper. Every time you start the examination, the program shuffles all the questions and selects them randomly from the database, which reduces the chances of memorizing the questions.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
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.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
3. Electrical regulations
Part I - Safety requirements for
installing/using equipment
• approval of electrical components
• examination, installation, use of
electrical equipment
• guarding of electrical equipment
• overcurrent protection
• grounding of equipment
1b
4. Electrical regulations
Part II - Safety-related work
practices
• protection of employees
• passageways and open spaces
• lockout/tagging of circuits
1c
5. Electrical regulations
Part III - Safety-related
maintenance and environmental
considerations
• protection of wiring components
• environmental deterioration of
equipment
1d
6. Electrical regulations
Part IV - Safety requirements for
special equipment
• batteries and battery charging
• PPE
• emergency eyewash stations
1e
7. How electricity works
Current flows from a generating
source through conductors, to a
load
Complete
circuits are
needed
2a
8. How electricity works
Normal route is through
conductors
Shock occurs
when the body
becomes a
part of the
electrical
circuit
2b
9. I = Current (amperes)
E = Voltage (volts)
R = Resistance (ohms)
E
I R
Ohm’s Law
10. Body Area OHMS
Dry Skin 600,000
Wet Skin 1,000
Internal Organs 400-600
Ear to Ear 100
Human Resistance
12. Electric shock
Occurs when current enters the
body at one point and exits at
another
Shock occurs when you touch:
• both wires of an electric circuit;
• one wire of an energized circuit
and ground; or
• a metallic part that is “hot”
3a
13. Electric shock
Severity of shock depends on
the:
• amount of current
• path of the current
• amount of time
exposed
3b
14. Electric shock
Effects range from a tingle, to
cardiac arrest, severe
burns, and probable
death
Typical household
current of 15 amps
can cause death
3c
16. 1-8 mA = shock, not painful
8-15 mA = Pain
15-20 mA = Muscle contraction
20-100 mA = Severe pain & paralysis
of breathing muscles
100-1000 mA = Ventricular fibrillation
(Usually cause death)
> 1,000 mA = Heart stops
Effects of Current
17. Grounding
Protects you from electrical
shock
Safeguards
against fire
Protects electrical equipment
from damage
4a
18. Grounding
Two types of grounding include:
• Service or system
ground
• Equipment ground
4b
19. Circuit protective
devices
At construction sites, the most
common electrical hazard is the
ground fault electrical shock
OSHA requires either:
• Ground fault circuit interrupters
(GFCIs); or
• Assured Grounding Conductor
Program
5a
20. Circuit protective
devices
Circuit protective devices
include:
• fuses and circuit breakers -
protect conductors and equipment
• GFCIs - limit or shut off current
flow
5b
21. Ground fault circuit
interrupters
A fast-acting circuit breaker
that senses small imbalances in
the circuit caused by current
leakage to ground
6a
26. The AEGC program is an
inspection program covering:
• all cord sets
• receptacles that are not part of a
permanent wiring structure
• equipment connected by cord and
plug
7b
Assured Equipment
Grounding Conductor
program
27. Equipment must be visually
inspected for damage/defects
before each day’s use
7c
Assured Equipment
Grounding Conductor
program
28. Tests must be performed:
• before the first use of new
equipment
• after suspected damage to
equipment
• at three month intervals
– continuity test
– grounding conductor test
7d
Assured Equipment
Grounding Conductor
program
29. Lockout/Tagout
Electrical equipment
deactivated for repair must be
locked out and tagged at the
point where it can be energized
Protects maintenance workers
Warns others that work is being
performed
8a
30. Lockout/Tagout
Only the person who
locked/tagged the equipment
can turn it back on
Before equipment is energized,
a qualified person must conduct
tests and visual inspections
8b
32. Lockout/Tagout
If the employee is absent, the
lock/tag can be removed by a
qualified person if:
• the employee who applied the lock
has left the premises
• it is visually determined that all
employees are clear of the
circuits/equipment
8d
33. Guarding requirements
Any live parts of electrical
equipment operating at 50 volts
or more must be guarded to
avoid accidental contact
9a
34. Guarding requirements
Entrances to areas with live
electrical parts must be marked
with warning signs
Signs should
forbid entrance
except by
qualified persons
9b
38. Personal protective
equipment
Use appropriate equipment for
the hazards, including:
• helmets
• eye and face
protection
• gloves and
sleeves
• aprons
• protective footwear
11b