SPS 341.41(2)(b)2. 2. Installations in cities of the first class if an installation registration form has been filed with the appropriate city official.
SPS 341.41(2)(b)3. 3. Underground power piping systems that are not located in a walk-in tunnel.
SPS 341.41(2)(b)4. 4. Power piping replacements, modifications and alterations to existing systems and for new installations, any of which do not exceed 50 feet in length.
SPS 341.41(2)(b)5. 5. Installations at one- or 2-family dwellings.
SPS 341.41 Note Note: Section SPS 341.16 (2) (c) requires the piping installer to notify the Department or authorized agent or a certified inspector at least 5 business days prior to the installation to schedule an inspection.
SPS 341.41(3) (3)Piping on single power boilers. ASME form P-4B is not required to be completed for boiler piping on any single ASME “S", “M" or “E" stamped boiler rated at 50 boiler horsepower or less and 150 psig or less maximum allowable working pressure, if applicable pressure and temperature rated valves and at least schedule 80 pipe and fittings are used.
SPS 341.41(4) (4)Installation registration for solid-fuel-fired water-heating appliances.
SPS 341.41(4)(a)(a) Except as specified in par. (b), the installer of a solid-fuel-fired water-heating appliance shall register the unit with the department and shall use department form SBD-6314-E for the registration.
SPS 341.41(4)(b) (b) Registration of a solid-fuel-fired water-heating appliance installed at a one- or 2-family dwelling is not required.
SPS 341.41 Note Note: The Department forms required in this chapter are available for a nominal fee at telephone 800-DOC-SALE or 411 (Telecommunications Relay), or at docsales@doa.state.wi.us, or at no charge at the Department's Web site at www.dsps.wi.gov through links to Division of Industry Services forms.
SPS 341.41 History History: Cr. Register, February, 1988, No. 386, eff. 3-1-88; am. (1) (a) and (2) (a), Register, December, 1992, No. 444, eff. 1-1-93; CR 05-025: am. (2) (b), cr. (3) Register October 2005 No. 598, eff. 11-1-05; CR 08-028: cr. (2) (b) 5., (c) and (4) Register November 2008 No. 635, eff. 12-1-08; correction in (1) (b) 1. made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; CR 11-047: am. (1) (a), (b) (intro.), 1., (2) (a), renum. (2) (c) to be (2) (b) 5. (note) and am., am. (4) (b) Register May 2012 No. 677, eff. 6-1-12.
SPS 341.42 SPS 341.42ASME code vessels.
SPS 341.42(1) (1)ASME code compliance. Except as provided in ss. SPS 341.43 to 341.45 and 341.53 (2), boilers and pressure vessels shall be constructed, installed, operated and maintained in accordance with the ASME code, ASME CSD-1 and the NBIC. Boilers and pressure vessels designed to other national or international standards may be approved if the design has been accepted by a nationally recognized independent third party and the department, or if the standard has been accepted by the department.
SPS 341.42 Note Note: Section SPS 341.43 also allows construction of boilers and pressure vessels that do not comply with the ASME code, if they comply with criteria in a variance issued by the Department. As referenced in section SPS 341.05, any such variance must comply with chapter SPS 303, which requires establishing an equivalency that meets the intent of the rule.
SPS 341.42 Note Note: The Department will recognize the applicable case interpretations of the ASME boiler and pressure vessel code as being acceptable.
SPS 341.42 Note Note: The ASME code specifies that persons installing boiler external piping by welding are required to possess the appropriate ASME credentials.
SPS 341.42 Note Note: Design and construction complying with Canadian standard CSA B51 is accepted by the Department under this section.
SPS 341.42(2) (2)Registering with national board.
SPS 341.42(2)(a)(a) Except as provided in par. (b), all boilers and pressure vessels, including any that are constructed and installed in accordance with Canadian standard CSA B51, shall have the manufacturer's data report registered with the National Board and shall bear a National Board number. Copies of the registration shall be provided to the department when requested.
SPS 341.42(2)(b) (b) Cast iron sectional boilers and cast aluminum boilers stamped “H" and pressure vessels stamped “UM" are exempt from National Board registration.
SPS 341.42(3) (3)Human occupancy.
SPS 341.42(3)(a)(a) Pressure vessels for human occupancy shall be constructed and installed in accordance with ASME PVHO-1.
SPS 341.42(3)(b) (b) Inspection, care, repair, replacement, testing and recertification of PVHO acrylic windows in pressure vessels for human occupancy shall comply with ASME PVHO-2.
SPS 341.42(4) (4)Compressed gases and cryogenic fluid vessels. In addition to complying with subs. (1) and (2), vessels and piping and other components for compressed gases and cryogenic fluids, including for gaseous hydrogen and liquefied hydrogen, shall also comply with NFPA 55, except as provided in s. SPS 341.44.
SPS 341.42 Note Note: Under section SPS 341.02 (1) (b) 3., pressure vessels and piping for gases that are used for fueling purposes, such as for heating appliances or engines, must comply with chapter SPS 340 instead of this chapter.
SPS 341.42 History History: Cr. Register, February, 1988, No. 386, eff. 3-1-88; am. (1), Register, June, 1996, No. 486, eff. 7-1-96; am. (1) and (2), cr. (3), Register, February, 2000, No. 530, eff. 3-1-00; CR 05-025: renum. (2) to be (2) (a) and am., cr. (2) (b) Register October 2005 No. 598, eff. 11-1-05; CR 08-028: am. (2) Register November 2008 No. 635, eff. 12-1-08; correction in (1) made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; CR 11-047: am. (1), (2) (a), renum. (3) to be (3) (a) and am., cr. (3) (b), (4) Register May 2012 No. 677, eff. 6-1-12.
SPS 341.43 SPS 341.43Wisconsin special vessels. Where it is not possible or practical to construct a boiler or pressure vessel in strict compliance with s. SPS 341.42, the department may grant a variance to the owner or user to permit the installation of the boiler or pressure vessel as a Wisconsin special within the state of Wisconsin. The department shall consider a variance request upon receipt of a completed petition for variance form and the required fee. The variance may be granted under the following conditions:
SPS 341.43 Note Note: See section SPS 341.05 for further explanatory information.
SPS 341.43(1) (1)Comparable safety.
SPS 341.43(1)(a)(a) When the method of designing or constructing the boiler or pressure vessel is not covered by the ASME code, the department may approve the installation provided adequate proof of comparable safety of the design or construction is shown.
SPS 341.43(1)(b) (b) Complete plans, calculations and specifications in duplicate shall be submitted to and approved by the department before installation.
SPS 341.43(1)(c) (c) The boiler or pressure vessel shall be stamped “Wisconsin Special" if approved by the department.
SPS 341.43(1)(d) (d) All other applicable requirements of the ASME code shall be met.
SPS 341.43(2) (2)Owner-built.
SPS 341.43(2)(a)(a) When the boiler or pressure vessel is to be built by an owner for the owner's use, the department may waive the stamping required by the ASME code.
SPS 341.43(2)(b) (b) Complete plans, calculations and specifications in duplicate shall be submitted to and approved by the department before installation.
SPS 341.43(2)(c) (c) The boiler or pressure vessel shall be stamped “Wisconsin Special" if approved by the department.
SPS 341.43(2)(d) (d) All other applicable requirements of the ASME code shall be met.
SPS 341.43(3) (3)Limited quantity.
SPS 341.43(3)(a)(a) When a small number of boilers or pressure vessels is to be built by a manufacturer, the department may waive the stamping required by the ASME code.
SPS 341.43(3)(b) (b) Complete plans, calculations and specifications in duplicate shall be submitted to and approved by the department before installation.
SPS 341.43(3)(c) (c) The boiler or pressure vessel shall be stamped “Wisconsin Special" if approved by the department.
SPS 341.43(3)(d) (d) All other applicable requirements of the ASME code shall be met.
SPS 341.43 History History: Cr. Register, February, 1988, No. 386, eff. 3-1-88; am. (1) (a), (d), (2) (a), (d), (3) (a) and (d), Register, February, 2000, No. 530, eff. 3-1-00; correction in (intro.) made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672.
SPS 341.44 SPS 341.44U.S. department of transportation vessels. Pressure vessels bearing the stamping of the United States department of transportation are not permitted as permanent storage containers, except they may be used as replaceable service cylinders.
SPS 341.44 History History: Cr. Register, February, 1988, No. 386, eff. 3-1-88; CR 11-047: am. Register May 2012 No. 677, eff. 6-1-12.
SPS 341.45 SPS 341.45Noncode vessels.
SPS 341.45(1) (1)Exempted vessels. The following vessels are not required to be constructed and installed in accordance with the ASME code:
SPS 341.45(1)(a) (a) Water heaters and hot-water storage tanks, provided water temperatures do not exceed 210°F.
SPS 341.45 Note Note: See chapter SPS 384 for requirements relating to water heaters and hot-water storage tanks.
SPS 341.45(1)(b) (b) Vessels for containing water under pressure for domestic supply, including those having an air space for expansion.
SPS 341.45(1)(c) (c) Pressure vessels used for the processing or storage of water at water temperatures not exceeding 210°F. These vessels may contain a steam or hot water coil or heat exchanger, provided the steam is at or below a pressure of 15 psig and the hot water is at or below a pressure of 160 psig and a temperature of 250°F.
SPS 341.45(1)(d) (d) Pressure vessels used for water conditioning and filtration.
SPS 341.45(1)(e) (e) Pressure vessels used in processing and storing of fermented beverages at temperatures not exceeding 140°F.
SPS 341.45(2) (2)Vessel identification. The vessels listed in sub. (1) (b) to (e) shall be identified with the manufacturer's name, a serial number, the allowable working pressure, and the year fabricated.
SPS 341.45(3) (3)Pressure relief requirements.
SPS 341.45(3)(a)(a) Except as provided in par. (b), the vessels listed in sub. (1) shall meet the pressure relief device requirements of the ASME code.
SPS 341.45 Note Note: Pressure relief devices are not required on each vessel of a system if the system is properly equipped with pressure relief devices. For systems containing unheated water storage tanks, a pressure relief device is needed when the pressure-inducing source is capable of imposing a pressure greater than the design pressure of the tanks.
SPS 341.45(3)(b) (b) Water heaters and hot-water storage tanks shall be equipped with combination temperature and pressure relief valves in accordance with chs. SPS 381 to 387.
SPS 341.45 History History: Cr. Register, February, 1988, No. 386, eff. 3-1-88; r. and recr. (1) (a) and(3) (b), Register, December, 1992, No. 444, eff. 1-1-93; correction in (3) (b) made under s. 13.93 (2m) (b) 7., Stats., Register, March, 1998, No. 507; am. (1) (intro.) and (3) (a), Register, February, 2000, No. 530, eff. 3-1-00; correction in (3) (b) made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; CR 11-047: am. (1) (a) to (d), (3) (b) Register May 2012 No. 677, eff. 6-1-12.
SPS 341.46 SPS 341.46Power piping.
SPS 341.46(1) (1)General. Power piping shall be installed in accordance with ASME B31.1. The use of slip-on flanges shall be limited in applications to no higher than Class 300 primary pressure service rating. Slip-on flanges shall be installed with double fillet welds in accordance with ASME B31.1.
SPS 341.46(2) (2)Boiler external piping. Boiler external piping within the scope of section I of the ASME code shall be installed in accordance with ASME B31.1.
SPS 341.46(3) (3)Application. This section applies to new systems as well as all replacements, modifications, and alterations to existing systems.
SPS 341.46 History History: Cr. Register, February, 1988, No. 386, eff. 3-1-88; r. and recr. Register, February, 1990, No. 410, eff. 3-1-90; am. (1) and (2), Register, February, 2000, No. 530, eff. 3-1-00; CR 11-047: am. (1), (2) Register May 2012 No. 677, eff. 6-1-12.
SPS 341.47 SPS 341.47Multi-boiler installations. When hot-water heating boilers are installed in multiples with a common header and a common return, isolation valves may be eliminated between units and the units may be considered as one boiler provided all of the following conditions are met:
SPS 341.47(1) (1)Output limit. No single unit exceeds 500,000 Btu per hour output.
SPS 341.47(2) (2)Pressure relief. Each unit has a pressure relief device as required by the ASME code, or the common header has a pressure relief device with sufficient relieving capacity for all units in the installation.
SPS 341.47(3) (3)Controls. Each unit has operating controls and safety controls acceptable to the department.
SPS 341.47(4) (4)Low-water cutoff. The fuel supply to each unit is shut off by a low-water cutoff in the event of low water in the system.
SPS 341.47 History History: Cr. Register, February, 1988, No. 386, eff. 3-1-88; CR 11-047: am. (intro.), (1) to (3) Register May 2012 No. 677, eff. 6-1-12.
SPS 341.48 SPS 341.48Organic- or synthetic-fluid heat-transfer systems. Boilers and coil-type heaters that utilize organic or synthetic fluids as a heat-transfer media shall be designed, constructed and installed in accordance with the ASME code. Piping for organic or synthetic fluids used as a heat-transfer media and subject to temperatures in excess of 250°F shall be installed in accordance with ASME B31.1.
SPS 341.48 Note Note: See sections SPS 341.41 (1) and (2) for requirements relating to registering these installations with the Department.
SPS 341.48 History History: Cr. Register, February, 1988, No. 386, eff. 3-1-88; am. Register, May, 1994,No. 461, eff. 6-1-94; am. Register, February, 2000, No. 530, eff. 3-1-00; CR 05-025: am. Register October 2005 No. 598, eff. 11-1-05; CR 11-047: am. Register May 2012 No. 677, eff. 6-1-12.
SPS 341.49 SPS 341.49Solid-fuel-fired water-heating appliances.
SPS 341.49(1)(1)General. This section applies to solid-fuel-fired water-heating appliances that are not constructed and installed in accordance with the ASME code.
SPS 341.49(2) (2)Design.
SPS 341.49(2)(a)(a) A solid-fuel-fired water-heating appliance shall be constructed with self-contained weather proofing or other weather protection acceptable to the department.
SPS 341.49(2)(b) (b) A solid-fuel-fired water-heating appliance shall be listed by a nationally recognized testing laboratory acceptable to the department.
SPS 341.49 Note Note: Examples of acceptable testing laboratories include, but are not limited to, Underwriters Laboratory (UL) and Factory Mutual (FM).
SPS 341.49(2)(c) (c) A solid-fuel-fired water-heating appliance shall be designed and constructed for operation at atmospheric pressure and shall be properly vented to prevent a positive pressure condition.
SPS 341.49(3) (3)Installation.
SPS 341.49(3)(a)(a) A solid-fuel-fired water-heating appliance shall be located away from occupiable structures in accordance with the manufacturer's recommendation. If provided, a canopy shall be open on all sides and constructed of substantially nonflammable materials, and may not fully cover the unit.
SPS 341.49(3)(b) (b) A solid-fuel-fired water-heating appliance shall be enclosed by fencing or other barriers to prevent access and tampering by unauthorized persons.
SPS 341.49(3)(c) (c) Any automatic fuel-feeding system for a solid-fuel-fired water-heating appliance shall be designed or approved by the manufacturer of the appliance.
SPS 341.49(3)(d) (d) The installation of a solid-fuel-fired water-heating appliance shall be provided with means to prevent freezing of the supply and return lines.
SPS 341.49(4) (4)Repairs. Repairs to the boiler shall be made in accordance with the manufacturer's recommendation.
SPS 341.49 History History: Cr. Register, December, 1992, No. 444, eff. 1-1-93; r. and recr. (2), (3) (a), am. (4) (a), Register, June, 1996, No. 486, eff. 7-1-96; correction in (4) (b) made under s. 13.93 (2m) (b) 7., Stats., Register, October, 1996, No. 490; correction in (4) (b) made under s. 13.93 (2m) (b) 7., Stats., Register, May, 2001, No. 545; CR 01-139: am. (5) (b) Register June 2002 No. 558, eff. 7-1-02; CR 08-028: r. and recr. Register November 2008 No 635, eff. 12-1-08; CR 11-047: am. (3) (a), (c) Register May 2012 No. 677, eff. 6-1-12.
subch. V of ch. SPS 341 Subchapter V — Nuclear Power Plants
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.