Electrical Study Guide - Kentucky

Test Preparation Study Guide Kentucky Division of Mine Safety Coal Mine Electrician Certification

UNDERGROUND & SURFACE MINE ELECTRICIAN

2019

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Preface

The Code of Federal Regulations, under authority of the Federal Coal Mine Health and Safety Act of 1969 states that "all electrical equipment shall be frequently examined, tested, and

properly maintained by a qualified person to insure safe operating conditions." An individual may become qualified as an underground coal mine electrician as indicated below:

351.109 Requirements for qualification and certification to perform electrical work

(1) An individual is a qualified and certified person, within the meaning of this chapter, to perform electrical work (other than work on energized surface, high voltage lines, if: (a) He has at least 1 year experience in performing electrical work underground in a coal mine, in the surface work areas of an underground coal mine, in a surface coal mine, in a non-coal mine, in the mine equipment manufacturing industry, or in any other industry using or manufacturing similar equipment, and he attains a satisfactory grade on each of the series of written tests administered by the DMS and required in subsection (b) of this section , (b) He has at least 1 year experience prior to the date of application required by paragraph (c ) of this section, in performing electrical work underground in a coal mine, in the surface work areas of an underground coal mine, in a surface coal mine, in a non-coal mine, in the mine equipment manufacturing industry, or in any other industry using or manufacturing similar equipment, and he attains a satisfactory grade on each of the series of six written tests approved by the Secretary and prescribed in paragraph (b) of this section.

(2)The series of six written tests approved by the Secretary shall include the following categories: (1) Direct current theory and application; (2) Alternating current theory and application (3) Electric equipment and circuits (4) Permissibility of electric equipment (5) Law (6) Pertinent sections of the National Electrical code

(3) In order to take the series of six written tests approved by the Secretary, an individual shall apply to the District DMS and shall certify that he meets the requirements of paragraph (1) (a & b) of this section.

(4) A score of at least 80 percent of each of the six written tests will be deemed to be a satisfactory grade. 1 percentage point shall be added to an individual's score in each test for each additional year of experience beyond the 1 year minimum requirement specified in paragraph (1)(a) of this section; however, in no case shall an individual be given more than 5 percentage points for such practical experience.

(5) An individual may, within 30 days from the date on which he received notification from the DMS of his test scores, repeat those on which he received an unsatisfactory score.

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If further retesting is necessary after this initial repetition, a minimum of thirty (30) days from the date of receipt of notification of the initial retest scores shall elapse prior to such further retesting, whereupon the entire series of written tests shall be retaken. (6) An individual qualified and certified in accordance with this section shall, in order to retain qualification and certification, satisfactorily complete annually a electrical retraining program approved by DMS.

This study guide has been prepared for the Division of Mine Safety (DMS) specifically to provide guidance for those individuals who desire to prepare themselves for State &Federal qualifications as mine electricians by taking the DMS. Coal Mine Electrician Examination. This study guide is not intended to serve as the sole source of preparation, but rather as a tool toward that end. The study guide is divided into sections for each testing category for underground and surface coal mine electrician qualification. The specific sections are listed below. A set of typical examination questions are provided for each section. Also, in each category an outline is provided which gives topics that are to be tested on in the category.

Test #1 - DC Theory and Application Test #2- AC Theory and Application Test #3 - Electric Circuits and Equipment Test #4- Permissibility of Electric Equipment Test #5- Ky. Mine Law & 30 CFR Part 75 (Underground) 77 (Surface) Test #6- National Electric Code

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