Minnesota Administrative Rules
Agency 151 - Labor and Industry Department
Chapter 5225 - BOILERS AND BOATS
BOILER SAFETY
Part 5225.5200 - ELECTRIC BOILERS

Universal Citation: MN Rules 5225.5200
Current through Register Vol. 48, No. 39, March 25, 2024

All appliances required for electric steam boilers shall be attached in accordance with the following:

A cable at least as large as one of the incoming power lines to the boiler must be provided for grounding the boiler shell. This cable must be permanently fastened on some part of the boiler and must be grounded in an approved manner. A suitable screen or guard shall be provided around high tension bushings and a sign posted warning of high voltage. This screen or guard must be located so that it will be impossible for anyone working around the boiler to accidentally come in contact with the high tension circuits.

Each kilowatt of electrical energy consumed by an electric steam boiler, operating at maximum rating, must be considered the equivalent of one square foot of heating surface of a fire tube boiler when determining the required amount of safety valve relieving capacity.

Statutory Authority: MS s 175.171; 183.42; 183.44; 183.465; 183.466; 183.54; 326B.958; 326B.964; 326B.966; 326B.982

Disclaimer: These regulations may not be the most recent version. Minnesota may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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