30 CFR 56.6402 - Deenergized circuits near detonators.

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§ 56.6402 Deenergized circuits near detonators.

Electrical distribution circuits within 50 feet of electric detonators at the blast site shall be deenergized. Such circuits need not be deenergized between 25 to 50 feet of the electric detonators if stray current tests, conducted as frequently as necessary, indicate a maximum stray current of less than 0.05 amperes through a 1-ohm resistor as measured at the blast site.

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United States Code

Title 30 published on 2015-10-21

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 30 CFR Part 56 after this date.

  • 2017-01-23; vol. 82 # 13 - Monday, January 23, 2017
    1. 82 FR 7680 - Examinations of Working Places in Metal and Nonmetal Mines
      GPO FDSys XML | Text
      DEPARTMENT OF LABOR, Mine Safety and Health Administration
      Final rule.
      Effective date: May 23, 2017.
      30 CFR Parts 56 and 57

Title 30 published on 2015-10-21.

The following are only the Rules published in the Federal Register after the published date of Title 30.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2017-01-23; vol. 82 # 13 - Monday, January 23, 2017
    1. 82 FR 7680 - Examinations of Working Places in Metal and Nonmetal Mines
      GPO FDSys: XML | Text
      DEPARTMENT OF LABOR, Mine Safety and Health Administration
      Final rule.
      Effective date: May 23, 2017.
      30 CFR Parts 56 and 57