Archive for May, 2010

May 31

NO Energized Electrical Permit Required in NFPA 70E for Common Safety Tasks

Posted by Hugh Hoagland
Filed under Arc Flash Training Articles | No Comments

The energized permit requirement in NFPA 70E and CSA Z462 raised hackles in the beginning but if you understand this document you can see it isn’t an arbitrary requirement to make electrical work more administratively difficult.  It is a tool to help control unwarranted live work and ensure only qualified workers performed warranted live work. [...]

May 31

NFPA 70E-2009 PPE Hazard Risk Categories Now Based on Arc rating cal/cm2

Posted by Hugh Hoagland
Filed under Arc Flash Training Articles, Arc Flash/Shock Safety | No Comments

In previous versions of NFPA 70E, the Hazard Risk Categories (HRC) were based more on layering requirements but in the 2009 version of NFPA 70E and the 2008 version of CSA Z462, the HRC’s are based solely on the cal/cm2 level of protection.  These standards on Electrical Safety in the Workplace are quickly becoming the lead standards [...]

May 28

Electric Utility in Kentucky Fined by PSC: “You can’t contract away liability for electrical safety.”

Posted by Hugh Hoagland
Filed under Arc Flash Fines, OSHA Issues | No Comments

The Associated Press FRANKFORT, Ky. — The Kentucky Public Service Commission has fined South Kentucky Rural Electric Cooperative in an accident that injured two contract workers.

The PSC assessed a fine of $9,250 dollars, saying RECC violated safety regulations in an August 2008 incident in Casey County.”

May 28

NFPA 70E and AZ OSHA (ADOSH) Interpretation

Posted by Hugh Hoagland
Filed under OSHA Electrical Safety Interpretations | No Comments

This letter of interpretation is based on the Ford Motor Citation from 2000 as to how it affects ADOSH citations.  The letter addresses an AZ OSHA Interpretation of the effect of the Ford citation and NFPA 70E on future citations. Click Here to Read See the Complete Letter of Interpretation.

May 28

December, 2003 AZ OSHA Cites City of Scottsdale, AZ for Arc Flash Incident

Posted by Hugh Hoagland
Filed under Arc Flash Fines, OSHA Fines for Arc Flash Incident, OSHA Issues | No Comments

This is another older citation from December 2003 to show how OSHA has been incorporating NFPA 70E into the precedents.  The HVAC worker was burned badly in an arc flash.  No clothing ignition so the energy level was fairly low but I understand he received second and third degree burns on his arms. Click Here to [...]

May 27

Worker Hurt in “Manhole Explosion” Probable Arc Flash

Posted by Hugh Hoagland
Filed under Underground Network Incidents | No Comments

Three primary causes for “manhole explosions” are 1. Ignition of combustible or flammable gases or dusts in the manhole 2. Arc Flash 3. A combination of the two. By law, gases are monitored and these explosions are fairly rare.  Arc flashes are more common when gases are being monitored.  Click here to read the report.

May 27

ArcWear.com/e-Hazard.com Electric Arc Newsletter May 2010

Posted by admin
Filed under Newsletter Archives | No Comments

In This Issue Arc Test Dates Honeywell Offers to Buy Sperian ASTM F1506 Adds Disposable and Limited Use Wear to Arc Ratings ASTM Proposed Glove Test Method Blocked NFPA 70E-2012 ROC Meeting Updated NFPA 70B-2010 Out ASTM F819 Terminology Updated ArcFlash Blaster Seeks Partner or Sale Burn Up the Myth: Wet suit and Sizing NEW [...]

May 26

Flame Resistant Clothing Requirements Pushed for Oil and Gas Well Drilling, Servicing & Production Operations

Posted by Hugh Hoagland
Filed under OSHA Electrical Safety Interpretations, OSHA Issues | No Comments

“OSHA’s policy for citing the general industry standard for personal protective equipment (PPE), 29 CFR 1910.132(a), for the failure to provide and use flame-resistant clothing (FRC) in oil and gas well drilling, servicing, and production-related operations. For the purpose of this memo, FRC includes both flame-resistant and fire retardant treated clothing. Clarification of the need to provide and use FRC during certain drilling, servicing, and production-related operations is necessary to resolve its inconsistent use among drilling contractors, well servicing contractors, and oil and gas companies that employ thousands of workers in these operations. OSHA inspection history and current information, including consensus standards, scientific evidence, and accident and injury data, indicate a potential for flash fires during certain well drilling, servicing, and production-related operations….

Citation Guidance for 29 CFR 1910.132(a)

Where appropriate, CSHOs shall cite 29 CFR 1910.132(a) for the failure to provide and ensure the use of FRC in oil and gas drilling, well servicing, or production-related operations when there is a potential for flash fire hazards as discussed below.

Drilling Operations
FRC is usually not needed during initial rig up and normal drilling operations prior to reaching active hydrocarbon zones, unless other activities warrant their use; e.g., fracing a previously drilled well while rigging a well in close proximity.

A potential for flash fire exists once active gas or hydrocarbon zones are reached. Appropriate FRC shall be worn by exposed employees working on the well site prior to drilling into identified gas or hydrocarbon zones. CSHOs should verify that employees are wearing FRC in advance of reaching such zones.

Appropriate FRC should also be worn when there is a history of fluid or gas kicks from underground producing zones.

Once FRC is identified for use as provided above, employees should wear appropriate FRC until the final casing is cemented and the well is effectively closed.

Well Servicing Operations
CSHOs shall determine whether FRC is provided and worn during well servicing or workover operations, such as:

Pulling wet string tubing
Snubbing tubing
Swabbing operations
Fracturing or perforating the well
Using bridge plugs or packers
Open hole work
Flow testing, blowing down or venting the well
Plugging an abandoned well
Flowback operations
Cementing
Stimulation
Wireline operations
Any operation working with wellhead or wellbore under pressure

Production-Related Operations
In OSHA’s experience, the potential for flash fire also exists in production-related operations that fall outside of drilling and well servicing. CSHOs shall determine whether FRC is provided and worn during production-related operations, such as:

Equipment openings (e.g., line breaking or valve changes)
Gauging
Transfer of hydrocarbons
Maintenance operations on production equipment
Hot work operations
Tank heating
Using open flame
Start-up operations”

May 26

3M Post-it Note factory worker electrocuted

Posted by Hugh Hoagland
Filed under OSHA Issues | No Comments

Normally these types of fatalities are caused during maintenance but in some of these high speed processes there can be static electricity build up which is normally managed by processes in the machine.  No word yet on the cause. If this was a maintence work situation NFPA 70E and OSHA standards would apply and can [...]

May 12

Whether an employer can repair an extension cord under 29 CFR 1926, Subpart K according to OSHA electrical safety regs.

Posted by Hugh Hoagland
Filed under OSHA Electrical Safety Interpretations, OSHA Issues | No Comments

“Question: Under what circumstances may an employer located in Minnesota repair a damaged extension cord under 29 CFR 1926, Subpart K?

Answer: Paragraph 1926.405(g)(2)(iii) provides:

Flexible cords shall be used only in continuous lengths without splice or tap. Hard service flexible cords No. 12 or larger may be repaired if spliced so that the splice retains the insulation, outer sheath properties, and usage characteristics of the cord being spliced.
This standard permits you to repair an extension cord, under the conditions set forth, provided the cord is a flexible cord that is No. 12 or larger.

Additionally, 1926.403(a) requires all electrical conductors used by employers on a construction site to be “approved.” Section 1926.449 defines “approved” as:

Acceptable to the authority enforcing this subpart. The authority enforcing this subpart is the Assistant Secretary of Labor for the Occupational Safety and Health. The definition of “acceptable” indicates what is acceptable to the Assistant Secretary of Labor, and therefore approved within the meaning of this subpart.
Section 1926.449 defines “acceptable” as:

An installation or equipment is acceptable to the Assistant Secretary of Labor, and approved within the meaning of this subpart K:
(a) If it is accepted, or certified, or listed, or labeled, or otherwise determined to be safe by a qualified testing laboratory capable of determining the suitability of materials and equipment for installation and use in accordance with this standard; or
(b) With respect to an installation or equipment of a kind which no qualified testing laboratory accepts, certifies, lists, labels, or determines to be safe, if it is inspected or tested by another Federal agency, or by a State, municipal, or other local authority responsible for enforcing occupational safety provisions of the National Electrical Code, and found in compliance with those provisions; or
(c) With respect to custom-made equipment or related installations which are designed, fabricated for, and intended for use by a particular customer, if it is determined to be safe for its intended use by its manufacturer on the basis of test data which the employer keeps and makes available for inspection to the Assistant Secretary and his authorized representatives.
Assuming the extension cord you are repairing was initially “acceptable,” §1926.403(a) precludes you from using a repaired cord if the cord is significantly altered as a result of the repair. For example, you are precluded from using a repaired cord if the repair changes the cord’s original flexibility.1 As you may be aware, the State of Minnesota operates its own occupational safety and health program under a plan approved by Federal OSHA. Under this plan, the Minnesota Department of Labor promulgates and enforces occupational safety and health standards under authority of State law, and posts them on its website at http://www.dli.mn.gov/mnosha.asp. Although some of Minnesota’s standards are different, both its standards and interpretations must be at least as effective as Federal OSHA’s. For information on Minnesota’s Electrical standard and its enforcement, we suggest that you contact:

James Krueger, Compliance Director
443 Lafayette Road North
St. Paul, Minnesota 55155-4307
PH: (651) 284-5050
TOLL FREE: (877) 470-6742
FAX: (651) 284-5741″