Translate

An official website of the United States government.

**The .gov means it's official.** Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.

**The site is secure.** The **https://** ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

U.S. Department of Labor

## Occupational Safety and Health Administration

Contact UsFAQA to Z IndexLanguages- اَلْعَرَبِيَّةُ (Arabic)
- Sinugbuanong Binisayâ (Cebuano)
- 官话 (Chinese-Simplified)
- 廣東話 (Chinese-Traditional)
- English
- Français (French)
- Kreyòl ayisyen (Haitian Creole)
- 한국어 (Korean)
- नेपाली (Nepali)
- Polski (Polish)
- Português (Portuguese (Brazilian))
- Русский (Russian)
- Af-Soomaali (Somali)
- Español (Spanish)
- Українська (Ukrainian)
- Tiếng Việt (Vietnamese)
Search**
              -  Menu 

                      -  OSHA                           -                            - OSHA
                          - About OSHA
                          - Find an OSHA Office
                          - State Plans
                          - Job Safety and Health Poster
                          - Careers
                          - Freedom of Information Act
                          -  Speaker Requests 
                      -  STANDARDS                           -                            - Standards
                          - Law and Regulations
                          - Federal Registers
                          - Open for Comment
                          - Regulatory Agenda
                          - Standard Interpretations
                          - Training Requirements by Standard 
                      -  ENFORCEMENT                           -                            - Enforcement
                          - OSHA Enforcement
                          - Annual Inspection Data 
                      -  TOPICS                           -                            - Topics
                          - For Employers
                          - Worker Rights
                          - Fall Prevention
                          - Hazard Communication
                          - Heat
                          - Personal Protective Equipment
                          - Suicide Prevention
                          - Trenching and Excavation
                          - Workers Memorial 
                        -                            - By Sector
                          - Agriculture
                          - Construction
                          - Federal Agencies
                          - Healthcare
                          - Maritime
                          - Oil and Gas
                          - Warehousing 
                        -                            - Key Topics
                          - Recordkeeping Requirements and Forms
                          - Safety and Health Programs
                          -  Support After a Loss 
                          - Whistleblower Protections 
                      -  HELP AND RESOURCES                           -                            - Help and Resources
                          - Data
                          - Establishment Search
                          - Fatality Reports
                          - File a Complaint
                          - Publications
                          - Safety and Health Topics Pages
                          - Videos 
                        -                            - Compliance Assistance
                          - Compliance Assistance Specialists
                          - Consultation Services
                          - Cooperative Programs
                          - Small Business Resources 
                        -                            - Training
                          - Training Requirements and Resources
                          - Outreach Training Program (10- and 30-hour Cards)
                          - Find a Trainer
                          - Replace a Card
                          - Avoid Card Fraud
                          - OSHA Training Institute Education Centers
                          - Find a Center
                          - Search for Classes
                          - Susan Harwood Training Grants 
                      -  NEWS                           -                            - NEWS
                          - Federal Registers
                          - Media Center
                          - News Releases
                          - QuickTakes Newsletter 
                      - Contact Us
                      - FAQ
                      - A to Z Index
                      - LANGUAGES- اَلْعَرَبِيَّةُ (Arabic)
- Sinugbuanong Binisayâ (Cebuano)
- 官话 (Chinese-Simplified)
- 廣東話 (Chinese-Traditional)
- English
- Français (French)
- Kreyòl ayisyen (Haitian Creole)
- 한국어 (Korean)
- नेपाली (Nepali)
- Polski (Polish)
- Português (Portuguese (Brazilian))
- Русский (Russian)
- Af-Soomaali (Somali)
- Español (Spanish)
- Українська (Ukrainian)
- Tiếng Việt (Vietnamese)
 

### Inspection Detail

**Case Status: OPEN**

**Note:** The following inspection has not been indicated as closed. Please be aware that the information shown may change, e.g. violations may be added or deleted.  For open cases, in which a citation has been issued, the citation information may not be available for 5 days following receipt by the employer for Federal inspections or for 30 days following receipt by the employer for State inspections.

#### **Inspection: 1607978.015 - Nstar Electric**

**Inspection Information - Office: Boston South**

 

**Inspection Nr**

**Report ID**

**Date Opened**

----

**Site Address**: 			   Nstar Electric			   28 Bowdoin StreetBoston, MA 02114

**Mailing Address**: 			   157 Cordaville Rd (3rd Floor), Southborough, MA 01772

**Union Status**: Union

**SIC**:

**NAICS**: 221122/Electric Power Distribution

----

**Inspection Type**: Fat/Cat

**Scope**: Partial

**Advanced Notice**: N

**Ownership**: Private

**Safety/Health**: Safety

**Close Conference**: 07/13/2022

**Emphasis**:

**Case Closed**: 

----

**Case Status: OPEN**

#### **Investigation Summary**

**Investigation Nr**

**Event**

On October 11, 2022, an employee was working for an electrical power distributor was working inside an electrical vault. The employee was performing maintenance on a deenergized CM-22 Network Protector that was connected to an energized 2,000 kilovolt-ampere (kVA) transformer. Faulty insulators caused an electrical explosion and the employee was struck by an arc-flash. The employee died from severe burns and a blood clot.

**Keywords:**blood clot, burn, confined space, defect, defective, defective equipment, electric arc flash, electrical burn, electrical vault, electrical wire, electrical work, energized, entry permit, explosion, flame-resistant
Back to Top

                    -  OSHA 
                    -  Standards 
                    -  Enforcement 
                    -  Topics 
                    -  Media Center 
                    -  Contact Us 

U.S. Department of Labor

Occupational Safety and Health Administration200 Constitution Ave NW                                                                                    Washington, DC 20210                                          **1-800-321-OSHA1-800-321-6742www.osha.gov

Federal Government
                              - White House
                              - Benefits.gov
                              - Coronavirus Resources
                              - Disaster Recovery Assistance
                              - DisasterAssistance.gov
                              - USA.gov
                              - Notification of EEO Violations
                              - No Fear Act Data
                              - U.S. Office of Special Counsel

Occupational Safety & Health
                              - Frequently Asked Questions
                              - A - Z Index
                              - Freedom of Information Act - OSHA
                              - Read the OSHA Newsletter
                              - Subscribe to the OSHA Newsletter
                              - OSHA Publications
                              - Office of Inspector General

About The Site
                              - Freedom of Information Act
                              - Disclaimers
                              - Plug-Ins Used on DOL.gov
                              - Accessibility Statement

Connect With DOL

FacebookTwitterInstagramYoutubeLinkedIn

Site MapImportant Website NoticesPrivacy & Security Statement

### **Thank You for Visiting Our Website**

#### You are exiting the Department of Labor's Web server.

The Department of Labor does not endorse, takes no responsibility for, and exercises no control over the linked organization or its views, or contents, nor does it vouch for the accuracy or accessibility of the information contained on the destination server. The Department of Labor also cannot authorize the use of copyrighted materials contained in linked Web sites. Users must request such authorization from the sponsor of the linked Web site. Thank you for visiting our site. Please click the button below to continue.

Close