Section 341.04. Definitions.

  In this chapter:

(1)  

(a) "Alteration," for a boiler or pressure vessel, has the meaning given in NBIC part 3 section 9.1.

(b) "Alteration," for power piping or a solid-fuel-fired water-heating appliance, means a change that involves an extension or addition to, or involves the arrangement, type or purpose of, an existing installation or component.

(2)  "Approved" means acceptable to the department.

(3)  "ASME code" means the boiler and pressure vessel code published by the American society of mechanical engineers.

(4)  "Authorized agent" means any of the following or their authorized representatives:

(a) A certified inspector who is referred to as enforcing this chapter, in a written contract between an inspection provider and the department.

(b) A first class city that has accepted the responsibility to administer and enforce this chapter.

(5)  "Boiler" means a vessel intended for use in heating water or other fluids or for generating steam or other vapors by the application of heat.

(6)  "Boiler external piping" means piping that is within the scope of section I of the ASME code and is required by section I to have ASME code symbol stamping.

(7)  "Certified inspector" means a person who holds a valid credential issued by the department under ch. SPS 305 as a certified boiler-pressure vessel inspector or a certified in-service field inspector.

(8)  "Condemned" means a boiler or pressure vessel declared to be unsafe and that has an applied stamping designating its condemnation.

(9)  "Department" means the department of safety and professional services.

(10)  "Dwelling" and "dwelling unit" have the meanings given in s. 101.61 (1) , Stats.

(11)  "External inspection" means an inspection made while the boiler or pressure vessel is in operation.

(12)  "First class city" means a city established with that class under s. 62.05 , Stats.

(13)  "High temperature water boiler" means a boiler completely filled with water intended for operation at pressures in excess of 160 psig or temperatures in excess of 250 ° F.

(14)  "Historical boiler" means a steam boiler that is typically of riveted construction and which is preserved, restored or maintained for hobby or demonstration use.

(15)  "Hot-water heating boiler" means a boiler in which no steam is generated, from which hot water is circulated for heating or process purposes and then returned to the boiler, and which operates at a pressure not exceeding 160 psig or a temperature of 250 ° F at or near the boiler outlet.

(16)  "Hot-water storage tank" means a tank used to store water that is heated indirectly by a circulating water heater, by steam or hot water circulating through coils, or by other heat exchange methods internal or external to the tank.

(17)  "Hot-water supply boiler" means a boiler completely filled with water that furnishes hot water to be used externally to itself at pressures not exceeding 160 psig or at temperatures not exceeding 250 ° F at or near the boiler outlet.

(18)  "Internal inspection" means an inspection made when the boiler or pressure vessel is shut down and handholes and manholes or other inspection openings are opened or removed for inspection of the interior as required by the inspector.

(19)  "Low-pressure steam boiler" means a boiler on which the safety valves are set at pressures not exceeding 15 psig.

(20)  "Maximum allowable working pressure" means the maximum gage pressure permissible at the top of a completed vessel in its operating position for a designated temperature.

(21)  "Miniature boiler" means a power boiler or high temperature water boiler that does not exceed any of the following limits:

(a) Inside shell diameter of 16 inches.

(b) Heating surface of 20 square feet, except for electric boilers.

(c) Gross volume of 5 cubic feet, exclusive of casing and insulation.

(d) Maximum allowable working pressure of 100 psig.

(22)  "National Board" means the National Board of Boiler and Pressure Vessel Inspectors.

(23)  "NRC" means the United States nuclear regulatory commission.

(24)  "Owner or user" means any person, firm or corporation legally responsible for the safe operation of a boiler or pressure vessel, power piping or a solid-fuel-fired water-heating appliance.

(25)  "Place of employment" has the meaning given in s. 101.01 (11) , Stats.

(26)  "Portable boiler" means an internally fired boiler primarily intended for temporary location and whose construction and usage is of a movable nature.

(27)  "Power boiler" means a boiler in which steam or other vapor is generated at a pressure of more than 15 psig.

(28)  "Power piping" means any steam piping system beyond the scope of section I of the ASME code and having a maximum allowable working pressure in excess of 15 psig, any hot water piping system beyond the scope of section I of the ASME code and subject to temperatures in excess of 250 ° F, or any piping system using an organic or synthetic fluid as a heat-transfer media and subject to temperatures in excess of 250 ° F.

(29)  "Pressure vessel" means a container for the containment of pressure, either internal or external. This pressure may be obtained from an external source or by the application of heat from a direct or indirect source, or any combination thereof.

(30)  "Public building" has the meaning given in s. 101.01 (12) , Stats.

(31)  "Relief valve" means a pressure-actuated valve which is normally held closed by a spring or other means and which is designed to automatically open enough when needed to prevent internal pressure from exceeding a predetermined level.

(32)  "Repair" means work and materials necessary to restore a boiler, pressure vessel, power piping or solid-fuel-fired water-heating appliance to a safe operating condition.

(33)  "Rupture disk" means a nonmechanical overpressure relief device that releases pressure when its preestablished rating is attained.

(34)  "Safety relief valve" means an automatic pressure-actuated relieving device suitable for use either as a safety valve or relief valve, depending upon application.

(35)  "Safety valve" means an automatic pressure relieving device actuated by the static pressure upstream of the valve and characterized by full-opening pop action.

(36)  "Secondhand vessel" means a boiler or pressure vessel that has changed location subsequent to the original installation.

(37)  "Solid-fuel-fired water-heating appliance" means atmospherically vented equipment used to heat water by burning solid fuels, for the purpose of providing space or process heat.

(38)  "Uniform dwelling code" or "UDC" means chs. SPS 320 to 325 .

(39)  "Water heater" means a closed vessel in which water is heated by the combustion of fuels, electricity or other energy source, and withdrawn for use external to the system at pressures not exceeding 160 psig, including the apparatus by which heat is generated and all controls and devices necessary to prevent water temperatures from exceeding 210 ° F.

(40)  "Welding" means the melting together of filler metal and base metal, or of base metal only, that results in coalescence.

Cr. Register, February, 1988, No. 386 , eff. 3-1-88; am. (37), Register, February, 1990, No. 410 , eff. 3-1-90; am. (29), Register, May, 1994, No. 461 , eff. 6-1-94; r. (4), (17), (23), (25), r. and recr. (7), Register, October, 1996, No. 490 , eff. 11-1-96; am. (intro.) and (29), Register, February, 2000, No. 530 , eff. 3-1-00; CR 05-025 : cr. (13m) Register October 2005 No. 598 , eff. 11-1-05; CR 08-028 : renum. (10) to (22), (26), and (32) to (38) to be (11) to (23), (25), (33) to (38) and (40) and am. (16), cr. (10), (26), (32) and (39) Register November 2008 No. 635 , eff. 12-1-08; correction in (7), (9) made under s. 13.92 (4) (b) 6. , 7. , Stats., Register December 2011 No. 672 ; CR 11-047 : am. (intro.), renum. (1) to be (1) (a) and am., cr. (1) (b), (4), am. (6) to (8), (10), r. (11), renum. (12) to be (11), cr. (12), renum. (13), (14) to (18) to be (40), (13) to (17) and am. (40), r. (19), renum. (20) to (24) to be (18) to (22) and am. (19), (21), (22), cr. (23), renum. (25) to (29) to be (24) to (28) and am. (24), (28), r. (30), renum. (31) to (39) to be (29) to (37) and am. (29), (31), (32), (37), cr. (38), renum. (40) to be (39) Register May 2012 No. 677 , eff. 6-1-12.

Note

The Department will ordinarily accept items approved by a nationally recognized testing laboratory. Microsoft Windows NT 6.1.7601 Service Pack 1 As of June 1, 2012, only the City of Milwaukee had accepted the responsibility to administer and enforce this chapter. Microsoft Windows NT 6.1.7601 Service Pack 1 Note: Under s. 101.61 (1) Stats., "dwelling" means any building that contains one or 2 dwelling units. "Dwelling unit" means a structure or that part of a structure which is used or intended to be used as a home, residence or sleeping place by one person or by 2 or more persons maintaining a common household, to the exclusion of all others. Microsoft Windows NT 6.1.7601 Service Pack 1 As of June 1, 2012, only the City of Milwaukee had become a first class city. Microsoft Windows NT 6.1.7601 Service Pack 1 Steam locomotives, traction engines, hobby boilers and steam cars are examples of historical boilers. Microsoft Windows NT 6.1.7601 Service Pack 1 Under s. 101.01 (11) , Stats., "place of employment" includes every place, whether indoors or out or underground and the premises appurtenant thereto where either temporarily or permanently and any industry, trade or business is carried on, or where any process or operation, directly or indirectly related to any industry, trade or business, is carried on, and where any person is, directly or indirectly, employed by another for direct or indirect gain or profit, but does not include any place where persons are employed in private domestic service which does not involve the use of mechanical power or in farming. "Farming" includes those activities specified in s. 102.04 (3) , and also includes the transportation of farm products, supplies or equipment directly to the farm by the operator of said farm or employees for the use thereon, if such activities are directly or indirectly for the purpose of producing commodities for market, or as an accessory to such production. When used with relation to building codes "place of employment" does not include an adult family home, as defined in s. 50.01 (1) , or, except for the purposes of s. 101.11 , a previously constructed building used as a community-based residential facility, as defined in s. 50.01 (1g) , which serves 20 or fewer residents who are not related to the operator or administrator. Microsoft Windows NT 6.1.7601 Service Pack 1 Under s. 101.01 (12) , Stats., "public building" means any structure, including exterior parts of such building, such as a porch, exterior platform or steps providing means of ingress or egress, used in whole or in part as a place of resort, assemblage, lodging, trade, traffic, occupancy, or use by the public or by 3 or more tenants. When used in relation to building codes, "public building" does not include a previously constructed building used as a community-based residential facility as defined in s. 50.01 (1g) which serves 20 or fewer residents who are not related to the operator or administrator or an adult family home, as defined in s. 50.01 (1) . Microsoft Windows NT 6.1.7601 Service Pack 1 A relief valve is used primarily for liquid service. Microsoft Windows NT 6.1.7601 Service Pack 1 A safety valve is used for gas or vapor service. Microsoft Windows NT 6.1.7601 Service Pack 1 For further explanation of definitions, see the ASME code section VIII, scope and appendix 3. Microsoft Windows NT 6.1.7601 Service Pack 1