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2015 NFPA 70E Arc Flash Overview
Presented by: Jay Jamali, CSP, CHMM, CHCM
Enviro Safetech 408-943-9090
2160 Oakland Road San Jose, CA 95131
www.envirosafetech.com
SLIDE-2 3-2015
Enviro Safetech
Causes
SLIDE-3 3-2015
Enviro Safetech
Arc Flash
Pressure Waves
Copper Vapor: Solid to Vapor Expands by 67,000 times
Molten Metal
Intense Light
Hot Air-Rapid Expansion
35,000 °F
Shrapnel
Sound Waves
SLIDE-4 3-2015
Enviro Safetech
NFPA 70E • OSHA requested National Fire Protection Association (NFPA)
to develop a Standard for Electrical Safety in the Workplace (70E) which requires: – Electrical Safety Program (ESP)
• Electrical safety procedures • Electrical preventative maintenance program
– Training and job briefing – Risk assessment
• Shock and arc boundary
– Personal Protective Equipment (PPE) – Lock Out Tag Out (LOTO) – Emergency procedures – Contractors, house keeping – Labeling – Energized work permit – Illumination, testing, audit – Special equipment, insulated tools and barriers
SLIDE-5 3-2015
Enviro Safetech
NFPA 70E • This standard applies to hazards associated with electrical
energy during activities such as: – Installation (conductors and equipment that connect to the supply of
electricity) – Inspection, – Operation, – Maintenance, and – Demolition of electric conductors, electric equipment, signaling and
communications conductors and equipment,
SLIDE-6 3-2015
Enviro Safetech
Risk Assessment • The risk assessment starts with a survey of the facility’s
electrical system, beginning at the electrical utility, then the electrical service, the main distribution system(s), all panel boards, all disconnect switches, motors of 50 horsepower and larger, onsite generators, capacitors and the wiring. – Accurate one-line drawings of the electrical system are needed to
perform the risk assessment: – The maximum possible fault currents must be calculated throughout the
system. – Locations where arc faults are possible should be identified. – Generate a hazard label in accordance with NFPA 70E and ANSI and
permanently attach to electrical equipment. – The risk assessment must be documented.
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Risk Assessment • The arc flash risk assessment shall be updated when a major
modification or renovation takes place. – It shall be reviewed periodically, not to exceed 5 years to account for
changes in the electrical distribution system that could affect the results of the arc flash risk assessment.
• Software is available to perform calculations to determine the arc hazard and develop boundaries and specify level of PPE. – Smartphone ap: ArcBlast Calculator (free) – Computer software: www.easypower.com
SLIDE-8 3-2015
Enviro Safetech
Program • NFPA 70E requires the employer to implement and document
an overall Electrical Safety Program (ESP) that directs activity appropriate to the risk associated with electrical hazards. – Identify and minimize the hazard – Training – Labels – Inspection – Maintenance – Plan every job and document first-time procedures – De-energize, – Protect the employee from shock, burn, blast (PPE) – Insulated tools – Voltage testers – Audit
SLIDE-9 3-2015
Enviro Safetech
Procedure • The ESP shall identify the procedures to be utilized before work
is started by employees exposed to an electrical hazard. • The ESP shall include a risk assessment procedure that
addresses employee exposure to electrical hazards. • The procedure shall identify the process to be used by the
employee before work is started to carry out the following: – Identify hazards – Assess risks – Implement risk control according to a hierarchy of methods
SLIDE-10 3-2015
Enviro Safetech
Procedure • ESP procedures can include, but are not limited to, the
following: – Purpose of task – Qualifications and number of employees to be involved – Hazardous nature and extent of task – Limits of approach – Safe work practices to be used – PPE involved – Insulating materials and tools involved – Special precautionary techniques – Electrical diagrams – Equipment details – Sketches/pictures of unique features – Reference data
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Training • NFPA 70E requires safety training for employees who face a
risk of electrical hazard that is not reduced to a safe level by the electrical installation. Said employees shall be trained: – To understand the specific hazards associated with electrical energy. – In safety-related work practices which provide protection from the
electrical hazards. – To identify and understand the relationship between electrical hazards
and possible injury.
• The degree of training provided shall be determined by the risk to the employee.
• The training shall be classroom or on-the-job type, or a combination of the two.
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Training • Employees exposed to shock hazards shall be trained in
methods of safe release of victims from contact with exposed energized electrical conductors.
• Employees responsible for responding to medical emergencies shall be trained in first aid, CPR and emergency procedures. – Refresher training shall occur annually.
• The electrical safety program shall be designed to provide an awareness of the potential electrical hazards to employees who work in an environment with the presence of electrical hazards.
SLIDE-13 3-2015
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Training • Employees responsible for responding to medical emergencies
shall be trained in the use of an Automated External Defibrillator (AED) if an employer’s emergency response plan includes the use of this device. – Refresher training shall occur annually.
• Employees are to be trained on how to remove the source of electricity and notify 911.
• Employers shall verify at least annually that employee training is current.
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Training • A qualified person shall be trained and knowledgeable of the
construction and operation of equipment or a specific work method and be trained to recognize and avoid the electrical hazards that might be present with respect to that equipment or work method. – Such persons shall also be familiar with the proper use of the special
precautionary techniques, applicable electrical policies and procedures, PPE, insulating and shielding materials, and insulated tools and test equipment.
SLIDE-15 3-2015
Enviro Safetech
Training • Qualified persons permitted to work within the limited approach
boundary of exposed energized electrical conductors operating at 50 volts or more shall, at a minimum, be trained in all of the following: – Skills and techniques necessary to distinguish exposed energized
electrical conductors from other parts of electrical equipment – Skills and techniques necessary to determine the nominal voltage of
exposed energized electrical conductors – Approach distances specified in NFPA 70E and the corresponding
voltages to which the qualified person will be exposed
SLIDE-16 3-2015
Enviro Safetech
Training • Qualified person training shall include training on decision-
making process necessary to be able to do the following: – Perform the job safety planning – Identify electrical hazards – Assess the associated risk – Select the appropriate risk control methods from the hierarchy of
controls, including PPE
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Training • Employees shall be trained to select an appropriate test
instrument and shall demonstrate how to use a device to verify the absence of voltage, including interpreting indications provided by the device. – The training shall include information that enables the employee to
understand all limitations of each specific test instrument that might be used.
• Tasks that are performed less often than once per year shall require retraining before the performance of the work practices involved.
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Training • The employer shall determine, through regular supervision or
through inspections conducted on at least an annual basis, that each employee is complying with the safety-related work practices required by this standard.
• Retraining shall be performed at intervals not to exceed 3 years.
• The employer shall document that each employee has received the training. – This documentation shall be made when the employee demonstrates
proficiency in the work practices involved and shall be maintained for the duration of the employee’s employment.
– The documentation shall contain the content of the training, each employee’s name, and dates of training.
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Training • Retraining in safety-related work practices and applicable
changes in this standard shall be performed at intervals not to exceed three years.
• An employee shall receive additional training (or retraining) if any of the following conditions exists: – The supervision or annual inspections indicate that the employee is not
complying with the safety-related work practices. – New technology, new types of equipment, or changes in procedures
necessitate the use of safety-related work practices that are different from those that the employee would normally use.
– The employee must employ safety-related work practices that are not normally used during his or her regular job duties.
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Qualified Person • This standard defines a qualified person as one who has skills
and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training to recognize and avoid the hazards involved. – Unqualified persons shall not be permitted to approach nearer than the
limited approach boundary of energized conductors.
• Where there is a need for an unqualified person to cross the limited approach boundary, a qualified person shall advise them of the possible hazards and continuously escort the unqualified person while inside the limited approach boundary. – Under no circumstance shall the escorted unqualified person be
permitted to cross the restricted approach boundary.
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Qualified Person • Only qualified persons following the requirements for working
inside the restricted approach boundary shall be permitted to defeat or bypass an electrical safety interlock over which the person has sole control, and then only temporarily while the qualified person is working on the equipment.
• Employees who perform maintenance on electrical equipment and installations shall be qualified persons.
SLIDE-22 3-2015
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SLIDShock & Arc Boundaries
SLIDE-23 3-2015
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Shock Boundary • Limited Approach Boundary:
– An approach limit at a distance from an exposed energized electrical conductor within which a shock hazard exists.
• Restricted Approach Boundary: – An approach limit at a distance from an exposed energized electrical
conductor within which there is an increased risk of shock, due to electrical arc-over combined with inadvertent movement, for personnel working in close proximity to the energized electrical conductor.
• NOTE: Prohibited approach boundary has been DELETED from 2015 NFPA 70E.
• Shock boundaries apply only if employees are exposed to energized electrical conductors.
SLIDE-24 3-2015
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Shock Boundary • Unqualified persons shall not be permitted to approach nearer
than the limited approach boundary of energized conductors. • Where unqualified persons are working at or close to the limited
approach boundary, the designated person in charge of the work space where the electrical hazard exists shall advise the unqualified persons of the electrical hazard and warn them to stay outside of the limited approach boundary.
• The shock protection boundaries and the arc flash boundary are independent of each other. – In certain instances, the arc flash boundary might be a greater distance
from the energized electrical conductor than the limited approach boundary.
SLIDE-25 3-2015
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Shock Boundary • Qualified persons shall not approach or take any conductive
object closer to exposed energized electrical conductors operating at 50 volts or more, than the restricted approach boundary set forth in NFPA 70E, unless : – The qualified person is insulated or guarded from the energized electrical
conductors or – The energized electrical conductors are insulated from the qualified
person and from any other conductive object at a different potential.
• To cross the restricted approach boundary and enter the restricted space, qualified persons must do the following: – Have a plan that is documented and approved by management – Use PPE that is appropriate for working near exposed energized
conductors and is rated for the voltage and energy level involved
SLIDE-26 3-2015
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Shock Boundary • Where there is a need for an unqualified person(s) to cross the
limited approach boundary, a qualified person shall advise them of the possible hazards and continuously escort the unqualified persons while inside the limited approach boundary. – Under no circumstance shall escorted unqualified persons be permitted
to cross the restricted approach boundary.
• The following tables are used to determine the limited and restricted approach boundaries for AC and DC currents:
SLIDE-27 3-2015
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Boundary 3-3-3-202020151515
SLIDE-28 3-2015
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Arc Flash Boundary • The arc flash boundary shall be
the distance at which the incident energy equals 1.2 calories per centimeter squared (second degree burn). – The following table shall be used to
determine the arc flash boundary:
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Arc Flash Boundary
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Arc Flash Boundary
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SLIDE-31 3-2015
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PPE • Where it has been determined that work will be performed
within the arc flash boundary, PPE shall be selected based on the incident energy exposure of the worker by either: – Calculating the incident energy or – Using NFPA 70E PPE table
• 2015 NFPA 70E has deleted PPE HRC 0 because the PPE table should only show requirements where arc-rated clothing was required. – HRC 0 would mean the worker was outside the arc flash boundary and
did not need arc-rated PPE.
• ALL AR clothing is Flame Resistant (FR), but not all FR clothing are Arc Rated.
SLIDE-32 3-2015
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PPE • Clothing consisting of fabrics, zipper tapes, and findings made
from flammable synthetic materials that melt at temperatures below 600°F shall not be used. Example: – Acetate, – Acrylic, – Nylon, – Polyester, – Polyethylene, – Polypropylene, and – Spandex, – Either alone or in blends.
SLIDE-33 3-2015
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Face Protection • Face shields shall have an arc rating
suitable for the arc flash exposure. – Face shields with a wraparound guarding to
protect the face, chin, forehead, ears, and neck area shall be used.
– Face shields without an arc rating shall not be used.
– Eye protection (safety glasses or goggles) shall always be worn under face shields or hoods.
• Most arc rated faceshields are tinted and can reduce visual acuity and color perception. – Additional illumination of the task area might be
necessary when these types of arc protective face shields are used.
SLIDE-34 3-2015
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Head Protection • An arc-rated balaclava shall be used
with an arc-rated faceshield when the back of the head is within the arc flash boundary. – An arc-rated hood shall be permitted to be
used instead of an arc-rated faceshield and balaclava.
• An arc-rated hood shall be used when the anticipated incident energy exposure exceeds 12 cal/cm2 .
SLIDE-35 3-2015
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Hand Protection • Hand and arm protection shall be worn
where there is possible exposure to arc flash burn.
• Employees shall wear rubber insulating gloves with leather protectors and rubber insulating sleeves where there is a danger of hand and or arm injury from electric shock due to contact with energized electrical conductors.
• Rubber insulating gloves shall be rated for the voltage for which the gloves will be exposed.
SLIDE-36 3-2015
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Hand Protection • Gloves are assigned class and color code based on rating.
SLIDE-37 3-2015
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Glove Inspection • Insulating electrical gloves shall be
inspected daily. • Daily inspection includes a visual
inspection and an air test prior to use.
SLIDE-38 3-2015
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PPE • Electrical protective
equipment shall be subjected to periodic electrical tests.
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PPE • Where it has been determined that work will be performed
within the arc flash boundary, PPE shall be selected based on the incident energy exposure of the worker (in calories per square centimeter). – The incident energy exposure level shall be based on the distance of the
employee’s face and chest from the arc source for the specific task to be performed.
• The following NFPA 70E tables list tasks that require PPE and which do not.
SLIDE-40 3-2015
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PPE Required 3-2015
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PPE
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PPE
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PPE
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PPE Category 1
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PPE Category 2
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PPE Category 3
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PPE Category 4
SLIDE-48 3-2015
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Analysis Required • An incident energy analysis shall be required for the following
(tables cannot be used): – Tasks not listed in NFPA 70E – Power systems with greater than the estimated maximum available
short-circuit current – Power systems with longer than the maximum fault clearing times – Tasks with less than the minimum working distance
SLIDE-49 3-2015
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Job Briefing • Before starting each job, the employee in charge shall conduct
a job briefing with the employees involved. • The briefing shall cover:
– Hazards associated with the job, – Work procedures involved, – Special precautions, – Information on the energized electrical work permit, if required. – Energy source controls, – PPE requirements.
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Job Briefing
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Job Briefing
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Testing • Only qualified persons shall
perform tasks such as testing, troubleshooting, and voltage measuring within the limited approach boundary of energized electrical conductors operating at 50 volts or more or where an electrical hazard exists.
• Test instruments, equipment, and their accessories shall be rated for circuits and equipment to which they will be connected. EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvviro
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Testing • Example on how not to do testing
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Testing • Example on correct way of testing
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Energized Work • Energized work shall be permitted where the employer can
demonstrate that: – De-energizing introduces additional hazards or increased risk or
• Examples of additional hazards or increased risk include, but are not limited to, interruption of life-support equipment, deactivation of emergency alarm systems, and shutdown of hazardous location ventilation equipment.
– The task to be performed is infeasible in a de-energized state due to equipment design or operational limitations.
• Only qualified persons shall work on electrical conductors that have not been put into an electrically safe work condition. – When working within the limited approach boundary or the arc flash
boundary of exposed energized electrical conductors that are not placed in an electrically safe work condition, work to be performed shall be considered energized electrical work and shall be performed by written permit only.
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Permit • A permit shall not be required if a qualified person is provided
with and uses appropriate safe work practices and PPE under any of the following conditions: – Thermography and visual inspections if the restricted approach boundary
is not crossed – Access to and egress from an area with energized electrical equipment if
no electrical work is performed and the restricted approach boundary is not crossed
– General housekeeping and miscellaneous non-electrical tasks if the restricted approach boundary is not crossed
– Testing, troubleshooting, and voltage measuring
SLIDE-57 3-2015
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Permit
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Permit SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLIIIIIIIIIIIIIIIIIIIIIIIIIIIIIDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE-583-2020222202000002000000002000000000000002022000000000000000000000000000000002022000000000220002000000000000000022220000011151511515155155515555151515151115555555551111151555555555551111111555511115555515111151115555555555155515515555551111111515515511115555
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Permit
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Insulated Tools • Employees shall use insulated tools
when working inside the limited approach boundary of exposed energized electrical conductors where tools might make accidental contact. – Insulated tools shall be rated for the
voltages on which they are used. – Insulated tools and equipment shall be
inspected prior to each use.
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Maintenance • An Electrical Preventive Maintenance (EPM) program should be
conducted on a routine basis to ensure safe operation. – An EPM not only helps the equipment work better, but it also identifies
potential hazards before they cause an accident. – As part of an EPM, electrical equipment should be thoroughly cleaned
and routine inspections should be conducted by qualified personnel who understand how to identify loose connections, overheated terminals, discoloration of nearby insulation, and pitted contacts.
– Using corrosion resistant terminals and insulate exposed metal parts if possible
– Sealing all open areas of equipment to ensure rodents and birds cannot enter
– Verifying that all relays and breakers are set and operate properly
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Enviro Safetech
Label• Electrical equipment such as
switchboards, panelboards, industrial control panels, meter socket enclosures, and motor control centers, that are likely to REQUIRE examination, adjustment, servicing, or maintenance while energized, shall be field marked with a label containing the following information: – Nominal system voltage – Arc flash boundary – And at least one of the following:
• Available incident energy and the corresponding working distance or arc flash PPE category but not both
• Minimum arc rating of clothing • Site specific PPE
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Label• The method of calculating and data to support the information
for the label shall be documented. • Labels applied prior to September 30, 2011, are acceptable if
they contain the available incident energy or required level of PPE. – Where the review of the arc flash hazard risk assessment identifies a
change that renders the label inaccurate, the label shall be updated (NEW).
• The owner of the electrical equipment shall be responsible for the documentation, installation, and maintenance of the field-marked label (NEW).
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Enviro Safetech
Overhead Line • When unqualified persons are
working on the ground or in an elevated position near overhead lines, the location shall be such that the employee and the longest conductive object the employee might contact do not come closer to any unguarded, energized overhead power line than the limited approach boundary in Table 130.4(C). – Objects that are not insulated for the
voltage involved should be considered to be conductive.
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Enviro Safetech
Contractors • Where the host employer has knowledge of hazards covered by
NFPA 70E that are related to the contract employer’s work, there shall be a documented meeting between the host employer and the contract employer.
• The host employer shall inform contract employers of the following: – Known hazards that are covered by this standard, that are related to the
contract employer’s work, and that might not be recognized by the contract employer or its employees
– Information about the employer’s installation that the contract employer needs to make a hazard assessment on
• The host employer shall report observed contract employer related violations of this standard to the contract employer.
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Enviro Safetech
LOTO • The employer shall:
– Establish LOTO procedures for the organization, – Provide training to employees, – Provide equipment necessary to execute the details of the procedure, – Audit execution of the procedures to ensure employee understanding/
compliance, and – Audit the procedure for improvement opportunity and completeness.
• The audit shall be conducted at least annually by a qualified person and shall cover at least one LOTO in progress and the procedure details.
• LOTO retraining shall be provided: – When LOTO procedures change and – At least once every 3 years.
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Enviro Safetech
Audit • The ESP shall be audited to verify the principles and
procedures of the ESP are in compliance with the latest NFPA 70E. – The frequency of the ESP audit shall not exceed 3 years.
• Field work shall be audited to verify the requirements contained in the procedures of the ESP are being followed. – When the auditing determines that the procedures of the ESP are not
being followed, the appropriate revisions to the training program or revisions to the procedures shall be made.
– The audit shall be documented. – The frequency of the field audit shall not exceed 1 year.
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Special Equipment • NFPA 70E has additional sections on special equipment:
– ARTICLE 310 Safety-Related Work Practices for Electrolytic Cells – ARTICLE 320 Safety Requirements Related to Batteries and Battery
Rooms – ARTICLE 330 Safety-Related Work Practices for Use of Lasers – ARTICLE 340 Safety-Related Work Practices: Power Electronic
Equipment – ARTICLE 350 Safety-Related Work Requirements: Research and
Development Laboratories – Informative Annex L Typical Application of Safeguards in the Cell Line
Working Zone
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OSHA • Although OSHA has not adopted the
NFPA 70E standard it has issued citations federally under the general duty clause (5a) and in California using the Injury and Illness Prevention Program (IIPP) GISO 3203 regulation. – Training
– Inspection
– Personal Protective Equipment
– Recordkeeping
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Enviro Safetech
OSHA • Fed-OSHA’s new standard on the construction of electric power
transmission and distribution lines and equipment which went into effect July 10, 2014.
• This standard requires employers to: – Make reasonable estimates of incident energy starting January 1, 2015. – Ensure that each employee exposed to hazards from electric arcs wears
the required arc-rated protective equipment when the estimated incident energy exceeds 2 calories per centimeter squared (cal/cm2) starting April 1, 2015.
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Enviro Safetech
OSHA • Revised minimum approach distances become effective on
April 1, 2015. – Information to help employers establish minimum approach distances
appears in appendices to the standards.
• The degree of training must be determined by risk to the worker for the hazard involved. – Qualified workers must have training to recognize and control or avoid
electrical hazards present at the worksite. – Line-clearance tree trimmers must have training to distinguish exposed
live parts and to determine the voltage on those parts, and they must have training in minimum approach distances and how to maintain them.
• Host and contract employers must share information with each other on safety-related matters and must coordinate their work rules and procedures.
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Enviro Safetech
Cal/OSHA • High voltage electrical safety orders section 2940.2 states that
employees shall not be permitted to approach or take any conductive object without an approved insulating handle closer to exposed energized parts than shown in Table 2940.2-1 through Table 2940.2-3 unless: – The employee is insulated or guarded from the energized part (gloves
rated for the voltage involved shall be considered insulation of the employee from the energized part), or
– The energized part is insulated or guarded from the employee and any other conductive object at a different potential.
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Enviro Safetech
Cal/OSHA
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Enviro Safetech
Cal/OSHA • ESO 2940.6 requires that insulating equipment designed for the
voltage levels to be encountered shall be provided and the employer shall ensure that they are used by employees.
• The employer is responsible for the periodic visual and electrical re-testing of all insulating gloves, sleeves and blankets.
• The employer shall ensure that each employee who is exposed to the hazards of flames or electric arcs does not wear clothing that, when exposed to flames or electric arcs, could increase the extent of injury that would be sustained by the employee. – This subsection prohibits clothing made from the following types of
fabrics, either alone or in blends, unless the employee can demonstrate that the fabric has been treated with flame retardant: acetate, nylon, polyester, and rayon.
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Enviro Safetech
Cal/OSHA • Gloves, sleeves, and blankets that have been electrically tested
but not issued for service shall not be placed into service unless they have been electrically tested within the previous twelve months. – Gloves, sleeves and blankets shall be marked to indicate compliance
with the re-test schedule and shall be marked with either the date tested, or the date the next test is due.
– When not being used, insulating gloves and sleeves shall be stored in glove bags or suitable containers.
– Insulating blankets shall be stored in a canister or other means that offers equivalent protection.
– Insulating equipment shall be stored away from direct sunlight, steampipes, radiators and other sources of excessive heat and shall be protected from physical damage.
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Cal/OSHA – Gloves, sleeves and blankets shall not be folded while in storage;
however, blankets shall be permitted to be rolled for storage.
• Insulating equipment shall be visually inspected for defects and damage, and shall be cleaned prior to use each day. – Rubber gloves shall be air and water tested at the beginning of each
work period and at any other time when the glove's condition is in doubt. – The gloves shall be visually examined over their entire inner and outer
surface for any defects, i.e., burns, cuts, cracks, punctures and weak spots; and
– Have the cuff stretched to detect abrasions and weak spots.
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Enviro Safetech
Cal/OSHA • ESO 2940.10 When employees are performing work on or
associated with exposed lines or equipment energized at 50 volts or more, persons trained in first aid including CPR shall be available as follows: – For field work involving two or more employees at a work location, at
least two trained persons shall be available. • Exception: Only one trained person need be available if all new employees are trained
in first aid, including CPR, within 3 months of their hiring dates.
– For fixed work locations such as generating stations, the number of trained persons available shall be sufficient to ensure that each employee exposed to electric shock can be reached within 4 minutes by a trained person.
– Exception: Where the existing number of employees is insufficient to meet this requirement (at a remote substation, for example), all employees at the work location shall be trained.
