See also: NIOSH mining products
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| Type: | |
Paper and Pencil Exercise |
| Audience: | |
Mine operators |
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Length: | |
6 questions |
| Skills Reviewed: | |
Predicting the current flow, Generalizing the relationships demonstrated to the work environment, Recognizing the risks of tampering with ground monitor systems |
Mining equipment often makes use of AC circuits with transformers. AC circuits with transformers are the basis for ground fault monitoring systems that are used on shuttle cars and other equipment. These safety systems are designed to prevent electrical shocks to workers. If ground monitor systems are bypassed, serious injuries and fatalities can result. You need to work through the exercise answering questions about the diagrams.
| Materials needed: | |
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Instructor Copy
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Problem Booklet
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1 for each trainee. May be downloaded separately or duplicated from the Instructor´s Copy. | |
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Answer Sheet
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1 for each trainee. May be downloaded separately or duplicated from the Instructor´s Copy. | |
Demonstration Apparatus |
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Allows the class members to duplicate the conditions found in the exercise. Directions for making the apparatus are found in the instructor's copy as well as a list of materials needed. Items should be readily available locally. | |
Optional |
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Overhead projector and overheads of the diagrams found in the Instructor's Copy and the problem booklet. | |
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