Transcript sp_electr_NVx

Welcome
Safety Training – “A tool for life.”
GRANTPRIDECO
Interaction Required: Click on Flashing VCR Control to Advance Slide.
The objective of this CBT module is to insure that personnel
receive basic training in electrical safety.
Every employee's work involves electricity.
This may vary from typical electrical appliances found in an
office (such as outlets, cords, coffee machines, computers, and
copiers) to more dangerous high voltage work done only by
trained and properly equipped electricians.
GRANTPRIDECO
Course Objectives
Course Objectives
Overview
OSHA Safety Standards Require:
Workers Be Properly Protected
Against Injury
Training Be Conducted
Electrical Hazards And Precautions Be
Explained
An “Electrical Safety” Program Be
Established
Job Electrical Hazards Be Assessed
and Controlled
Personal Protective Equipment Be
Provided
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
Segments
Introduction
Employees of the company need to
comply with The Company’s policies
and procedures dealing with electrical
safety.
While this program covers general
points to be aware of concerning
electrical safety for unqualified
personnel, you should also be aware of
site specific procedures for your work
area and location.
GRANTPRIDECO
Introduction
Because we use electricity for so many
things, we often take it for granted.
But electricity can be dangerous! And
electrical accidents can have serious
consequences:
-Starting fires & explosions
-Damaging machinery & equipment
-Causing injuries, through shock or
electrical burns
We should exercise caution when working
around and with electricity. To do that
properly we need to know how electricity
works, and the hazards that it brings with it.
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
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Program Requirements
All Employers Must:
Safeguard Electrical Sources.
Review Job Specific Hazards.
Implement Corrective Actions.
Conduct Hazard Assessments.
Provide Training to All Required Employees.
Control Workplace Hazards Using PPE As a Last Resort.
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
Segments
Training for Unqualified persons
What is Electricity?
Electrical current is the flow of electrons through a conductor.
Some of the terms we each need to be familiar with are:
Volts (Pressure)
Current (Measured in AMPS)
Resistance (OHM’ s Law)
How current effects the body:
Voltage
Current (AMPS) = -----------------------Resistance of Body (Ohms)
GRANTPRIDECO
Training for Unqualified persons
Effect of Electrical Shock is determined by:
Amount of current (AMPS)
Length of time a body part makes contact with
electrical current
GRANTPRIDECO
Training for Unqualified persons
Levels of Shock - Any electrical shock must be considered
dangerous
Tingling
Mild
Shock
> 5mA
Skin discoloration
Minor burns
Numbness/temporary analysis
Pain
Severe
Shock
5mA to 25
mA
Deadly
Shock
Greater than
25 mA
Spasms/loss of muscle control
Loss of consciousness
Death
GRANTPRIDECO
Training for Unqualified persons
If you saw a person involved in an electrical shock situation, what
would you do?
Your safety first: Never use your hands to free a victim frozen by
electric shock
Shut power off
Summon help
As a last resort, and if safe to do so, use a dry, non-conductive object
such as a wooden chair or broom handle.
GRANTPRIDECO
Training for Unqualified persons
A GFCI is a device that detects
voltage difference as little as 5
milliamps. At 5 milliamps, the
power to the electrical tool is
disconnected. A GFCI is an
important safety device that should
be used when operating tools or
appliances at work and at home.
(For example, hair dryers come
equipped with a GFCI. Also, all new
home construction requires outside
and bathroom outlets to be GFCI
protected.)
GRANTPRIDECO
Electrical Safe Work Practices :
Using GFCIs
(Ground Fault Circuit
Interrupts)
GFCI
Photo depicts GFCI and taped
electrical ends. Use of GFCIs on a
process unit requires a hot work
permit.
Training for Unqualified persons
Grounding - Grounding electrical circuits and electrical equipment
is required to:
 Protect employees against electrical shock
 Safeguard against fire
 Prevent damage to electrical equipment
Office appliances will either be equipped with a grounding prong
or the appliance may be double insulated (no grounding prong is
required).
Do I have a grounding
Never defeat the grounding prong.
PRONG?
GRANTPRIDECO
Training for Unqualified persons
Grounding (continued…)
 The equipment grounding conductor
provides a path to ground for dangerous
current should the electrical insulation fail.
 Any problems with the equipment
grounding conductor must be immediately
reported.
GRANTPRIDECO
Nope , I Don’t!?
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
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Retraining Requirements
Retraining is required when there Is…..
• New Electrical Hazard.
• Program Related Injury.
• Change in Job Assignment.
• New Equipment Introduced.
• New Hazard Control Methods.
• Failure in the Safe Work Practices.
• Reason to Doubt Employee Proficiency.
GRANTPRIDECO
Reason to Doubt
Employee
Proficiency.
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
Segments
29 CFR 1901.331-336
The provisions of 29 CFR 1901.331-336
cover electrical safety work practices
for both qualified and unqualified
persons working on, near, or with:
PREMISES WIRING
WIRING FOR CONNECTIONS TO SUPPLY
OUTSIDE CONDUCTORS ON PREMISES
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
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Excluded Work
The provisions of 29 CFR 1901.331-336 do not apply to electrical
safety work practices for qualified and unqualified persons
working on, or directly with:
POWER GENERATION
POWER TRANSMISSION
POWER DISTRIBUTION
ELECTRICAL DISTRIBUTION EQUIPMENT
SWITCH GEAR
MOTOR CONTROL CENTERS
UN-INTERRUPTIBLE POWER SUPPLIES (UPS)
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
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Definitions
Qualified Person
A person who has the necessary training to avoid electrical
hazards when working on or near exposed energized parts; who is
familiar with the construction and operation of the specific
equipment on the job; and who is familiar with the hazards of
working on or near this electrical equipment or wiring.
GRANTPRIDECO
Definitions
Unqualified Person
A person who has the necessary training to avoid electrical
hazards when working on or near exposed energized parts; but
who is not familiar with the construction and operation of the
equipment and hazards involved with the job.
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
Segments
Selection of Work Practices
SOME TIPS TO CONSIDER
Employees may not enter spaces containing exposed
energized parts.
Employees may not reach blindly into areas which may
contain energized parts.
GRANTPRIDECO
Selection of Work Practices
General
Work must be performed in such a way so as to prevent electric
shock or other injuries which may result from direct or indirect
electrical contact, or from working near or on equipment or
circuits which are, or may be, energized.
The specific safely-related work practices must be consistent with
the nature and extent of the associated electrical hazards.
GRANTPRIDECO
Selection of Work Practices
Working On or Near Exposed Energized Parts
Only qualified persons may work on energized electrical parts
and equipment.
Such persons must be capable of working safely on energized
circuits and must be familiar with the proper use of special
precautionary techniques, personal protective equipment,
insulating and shielding materials, and insulated tools.
GRANTPRIDECO
Selection of Work Practices
Overhead Lines
Employees should stay away from
overhead lines. If they are to perform
work near overhead lines they should get
these lines de-energized.
Always observe the full required
clearances for overhead lines.
GRANTPRIDECO
Selection of Work Practices
Overhead Lines
Watch for overhead electrical lines when:
• Operating a backhoe (both overhead &
buried)
• Operating a JLG
• Operating a crane
• Using a ladder (aluminum ladders are
prohibited in the refinery)
• Erecting scaffold
Note: The fireball at above is
the result of contact between
a person and high voltage
lines
• Loading roll-off boxes
• Loading waste containers
• Digging trenches
GRANTPRIDECO
Selection of Work Practices
LOCKOUT / TAGOUT as it applies to Electrical
Safety...
DANGER
Authorized Employee
The Person Who Locks Out Machines to Perform Servicing or
Maintenance.
LOCKED
OUT
DO NOT OPERATE
Affected Employee
This Lock/Tag may
only be removed by
An Employee Whose Job Requires Him or Her to Operate or Use a
Machine or Piece of Equipment On Which Servicing or Maintenance
Is Being Performed.
GRANTPRIDECO
NAME: _______________
DEPT : _______________
EXPECTED COMPLETION
DATE: ________________
TIME: _________________
Selection of Work Practices
LOCKOUT / TAGOUT as it applies to Electrical Safety…
(continued)
While any employee is exposed to
contact with parts of fixed electric
equipment or circuits which have
been de-energized, the circuits
energizing the parts must be locked
out, or tagged out, or both.
Fixed equipment refers to equipment
fastened in place, or connected by
permanent wiring methods.
The employer must also maintain a
written copy of the procedures.
GRANTPRIDECO
Selection of Work Practices
Application of Locks and Tags
A lock and a tag must be placed on each disconnecting means of
de-energizing circuits, as well as to equipment on which work is
to be performed. The lock(s) must be securely attached.
GRANTPRIDECO
Selection of Work Practices
Application of Locks and Tags
Each tag must contain a statement
prohibiting unauthorized operation
and removal of the tag.
GRANTPRIDECO
Selection of Work Practices
Application of Locks and Tags
If the lock cannot be applied, or if the employer can demonstrate
that tagging procedures will provide a level of safety equivalent
to that obtained by the use of a lock, a tag may be used without
a lock.
GRANTPRIDECO
Selection of Work Practices
Application of Locks and Tags
A tag used without a lock, must be supplemented by at least
one additional safety measure that provides a level of safety
equivalent to that obtained by the use of a lock.
Examples include:
• Removal of an isolating circuit element
• Blocking of a controlling switch
• Opening of an extra disconnecting device
GRANTPRIDECO
Selection of Work Practices
Application of Locks and Tags
A lock may be placed without a tag only under the
following conditions:
• Only on a circuit or a piece of equipment that is de-energized.
• The lockout period does not extend past the work shift.
• Exposed employees are familiar with this procedure.
GRANTPRIDECO
Selection of Work Practices
LOCKOUT TAGOUT as it applies to Electrical Safety…
A qualified person must test equipment to verify that the
equipment cannot be restarted.
A qualified person must use test equipment to test the circuit
elements and electrical parts of the equipment to which
employees will be exposed, and thereby verify that circuit
elements and equipment parts are de-energized.
GRANTPRIDECO
Selection of Work Practices
LOCKOUT TAGOUT as it applies to Electrical Safety…
Tests shall be used to determine if any energized condition exists
as a result of induced voltage or unrelated voltage back feed
(holding a charge like a battery) even though the equipment has
been de-energized and might be presumed to be safe.
GRANTPRIDECO
Selection of Work Practices
RE-ENERGIZATION SEQUENCE
The following requirements must be met, in the order given, before
circuits or equipment are re-energized, ...even temporarily.
A qualified person must conduct tests and visual inspections, as
necessary, to verify that all tools, electrical jumpers, shorts,
grounds, and other such devices have been removed.
Exposed employees must be warned to
stay clear of circuits and equipment
during re-energization.
GRANTPRIDECO
Selection of Work Practices
Re-energized Equipment
Each lock and tag must be removed by the
employee who applied it. If this employee
cannot remove his lock or tag, it may be
removed by the qualified person designated
in your LO/TO procedure.
GRANTPRIDECO
Selection of Work Practices
Confined Spaces In Electrical Safety
Energized parts must be protected from
accidental contact.
Doors, hinged panels and the like must be
secured to prevent them from contacting
workers or live parts.
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
Segments
Vehicular & Mechanical Equipment
Elevated Equipment
Vehicles or mechanical equipment
capable of having elevated parts
near energized overhead lines
must be operated so that a
clearance of 10 ft (305 cm) is
maintained.
If the voltage is higher than 50 kV,
the clearance must be increased 4
inches (10 cm) for every 10 kV
over that voltage.
GRANTPRIDECO
Vehicular & Mechanical Equipment
Elevated Equipment
Clearance may be reduced if...
• If the vehicle is in transit with its structure lowered, the
clearance may be reduced to 4 ft. (122 cm). If the voltage is higher
than 50 kV, the clearance must be increased 4 in (10 cm) for every
10 kV over that voltage.
GRANTPRIDECO
Vehicular & Mechanical Equipment
Clearance may be reduced if:
If insulating barriers are installed to prevent contact with the
lines, and if the line being guarded is not an attachment to or
part of the vehicle or its raised structure, then the clearance
may be reduced to a distance within the designed working
dimensions of the insulating barrier.
GRANTPRIDECO
Vehicular & Mechanical Equipment
Employees On the Ground
Employees standing on the ground may not
contact the vehicle or mechanical
equipment or any of its attachments,
unless:
The employee is using protective equipment
rated for the voltage; or
The equipment is located so that no uninsulated part of its structure that is
conductive can come closer than the
approach distances outlined and permitted
under 29 CFR 1910.334.
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
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Use of Equipment
Flammable Materials
Where flammable materials are present,
electric equipment capable of igniting them
must not be used, unless measures are
taken to prevent hazardous conditions
from developing.
Such materials include, but are not limited
to: flammable gasses, vapors, or liquids,
combustible dust, O2 or oxidizers.
GRANTPRIDECO
Use of Equipment
Portable Electric Equipment
HandlingPortable equipment must be handled in a manner which will not
cause damage. Flexible electric cords connected to the
equipment may not be used for raising or lowering equipment.
Flexible cords may not be fastened with staples or otherwise
hung in such a fashion as could damage the outer jacket or
insulation.
GRANTPRIDECO
Use of Equipment
Portable Electric Equipment
Visual InspectionPortable cord and plug connected equipment and flexible cord sets
(extension cords) must be visually inspected before use on any shift
for external defects and for evidence of possible internal damage
(such as pinched or crushed outer jacket).
Cord and plug connected equipment and flexible cord sets
(extension cords) which remain connected once they are put in
place and are not exposed to damage need not be visually
inspected until they are relocated. If there is a defect or evidence of
damage they must be removed from service.
GRANTPRIDECO
Use of Equipment
Conductive Work Location
Portable electric equipment and flexible cords used in highly
conductive work locations (such as those inundated with
water or other conductive liquids), or in job locations where
employees are likely to contact water or conductive liquids,
must be approved for those locations.
Use of electrical tools with an arcing device on a process unit
or other restricted area requires a hot work permit. On a
process unit, tape electrical connections at their connecting
plugs. Doing this helps prevent disconnects and arcing.
GRANTPRIDECO
Use of Equipment
Connecting Attachment Plugs
Employees’ hands may not be wet when plugging and
unplugging flexible cords and cord-and-plug connected
equipment, if energized equipment is involved.
Energized plug and receptacle connections may be handled
only with insulating protective equipment, where the
condition of the connection could provide a conducting
path to the employee’s hand (for example, a cord
connector that is wet from being immersed in water).
Locking-type connectors must be properly secured after
connection.
GRANTPRIDECO
Use of Equipment
Test Instruments & Equipment -- Ratings
Equipment and their Accessories must be
rated for the circuits and equipment to which
they will be connected, and must be designed
for the environment in which they will be
used.
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
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Personal Protection
Protective Clothing & Equipment
Considerations
Appropriate for the particular hazard(s)
Maintained in good condition
Properly stored when not in use
Kept clean, fully functional, and sanitary
GRANTPRIDECO
Personal Protection
Barriers & Signage
Barriers and signage
should be strategically
placed in the work area
to provide appropriate
warnings.
GRANTPRIDECO
Personal Protection
Signage
SOME TIPS TO CONSIDER:
• Warning signs should be:
• Standardized where possible
• Distinctive from other signage
• Posted at the appropriate height
• Clearly warn personnel of the hazards and the hazard’s severity
• Posted at all entry ways to the work area
GRANTPRIDECO
Personal Protection
General Protective Equipment and Tools
When working near energized parts, insulated
tools or handling equipment must be used.
Insulated tools and equipment must be
protected from damage and periodically
inspected for damage.
GRANTPRIDECO
Personal Protection
General Protective Equipment and Tools
Fuse handling equipment, insulated for the circuit voltage, must
be used to remove or install fuses when the fuse terminals are
energized.
Ropes and hand lines used near exposed energized parts must be
nonconductive.
GRANTPRIDECO
Personal Protection
General Protective Equipment and Tools
GENERAL PRECAUTIONS
Protective shields, barriers, or insulating materials must be used to
protect employees from electrical injuries while working near
exposed energized parts.
When normally enclosed live parts are exposed for maintenance
or repair, they will be guarded to protect unqualified persons from
contact with the live parts.
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
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Tips for Using Contractors
Working With Contractors
Remember, you control your facility or
area!
Review their procedures with them
before starting the job!
Determine their safety performance
records!
Determine who is in charge of their
personnel!
Determine how they will affect our
employees!
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
Segments
Portable Ladders
Portable Ladders must have non-conductive side rails if they
are used where the employee or the ladder could contact
exposed energized parts.
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
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Conductive Apparel
Conductive articles of jewelry and clothing may not be worn if
they might contact exposed energized parts. However, such
articles may be worn if they are rendered nonconductive by
covering, wrapping, or other insulating means.
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
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Housekeeping Duties
Where live parts present an electrical
contact hazard, employees may not
perform housekeeping duties at
distances where there is a possibility of
contact.
Adequate safeguards (such as insulating
equipment or barriers) must be
provided.
Electrically-conductive cleaning materials
may not be used in proximity to
energized parts unless procedures are
followed which prevent electrical
contact.
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
Segments
Electrical Safety Interlocks
Only a qualified person may defeat an electrical safety interlock,
and then only temporarily...using established procedures, while
he or she is working on the equipment.
The interlock system must be returned to its operable condition
when this work is competed.
GRANTPRIDECO
Introduction
Program Requirements
Training for Unqualified Persons
Retraining Requirements
Work Covered By 331-336
Excluded Work
Definitions
Selection of Work Practices
Vehicular & Mechanical Equipment
Use of Equipment
Personal Protection
Tips for Using Contractors
Portable Ladders
Conductive Apparel
Housekeeping Duties
Electrical Safety Interlocks
Summary
GRANTPRIDECO
Segments
Segments
Summary
Electricity is a powerful asset, but only when we use
it safely.
Whenever you are working with or around
electricity, follow Company policies and procedures.
Don’t attempt to make electrical repairs unless you
are “qualified”.
Report any unsafe condition to your supervisor.
Do not do work if you think it is unsafe!
GRANTPRIDECO
Summary
Use of electricity is an essential part of our work environment. A small
amount of current can be dangerous if it flows through the body and its
vital organs. Safe work practices include:
Always maintain at least 10 feet of clearance between your tools and
equipment, and any overhead electrical lines!
Always use a GFCI (Ground Fault Circuit Interrupt) when operating
electrical tools with cords.
On a process unit, tape electrical connections at their connecting plugs to
avoid disconnects and arcing.
Protect extension cords against damage Inspect electrical tools and cords
prior to each use.
Maintain at least 30 inches clearance in front of electrical panels
Never perform work on an electrical system unless you are qualified to do
so .
Always ensure that grounding systems are in good condition.
GRANTPRIDECO
GRANTPRIDECO