Nebraska Administrative Code
Topic - LABOR, DEPARTMENT OF
Title 229 - DEPARTMENT OF LABOR
Chapter 16 - INSTALLATION OF USED OR SECONDHAND BOILERS AND PRESSURE VESSELS
Section 229-16-007
Current through March 20, 2024
Any portable boiler installed in the jurisdiction shall be inspected by the Chief inspector or a Deputy inspector prior to operation. Portable boilers shall meet the following requirements:
A. An external inspection of the pressure boundary and all associated piping shall be performed while the unit is under a hydrostatic test of at least 80% of the Maximum Allowable Working Pressure (MAWP) stamped on the ASME nameplate.
B. An external inspection to ensure that all operating controls and safety devices are installed and in good working condition. All seals on the safety relief valves shall be intact or the valve recertified or replaced. All boilers that fall under the requirements of ASME CSD-1 shall have the controls tested upon initial startup and a copy of the Installation report submitted to the Chief Boiler Inspector.
C. An internal inspection will be performed on all units brought into the state that do not have a current Certificate of Inspection or Operation from another National Board member jurisdiction.
D. All boilers rated for 12,500,000 BTU/hr or less shall have an emergency shutdown switch located no closer than 10 feet to the boiler and no more than 25 feet away from the boiler and be plainly marked as the Boiler Emergency Shutdown. This switch shall be wired to remove all power from the boiler controls.
E. If the unit is installed where it is exposed to the elements, all electrical components shall be rated for outdoor use and meet the requirements of NFPA-70.
F. All boiler external and non-external piping shall conform to ASME B 31.1. The use of metallic flexible hoses is not allowed other than listed hoses in the fuel train.
G. All gas or oil piping shall meet the requirements of the appropriate code for the piping, NFPA-54, NFPA-58, NFPA-31 or any other adopted code as appropriate.
H. Portable boilers on enclosed trailers shall have the appropriate combustion air supply. If the doors are the only means of air infiltration, the doors shall have interlocks on them so that the boiler will not operate unless the doors are open. If a movable louvered system is installed, the louvers shall be interlocked with the boiler controls to prevent operation if the louvers are closed.
I. All portable boilers on trailers shall be stationed on a solid surface; they shall be supported so that the trailer and boiler are in a level position; and shall be anchored so that the trailer cannot move due to wind or other conditions.
J. Other tests or inspections may be required dependent upon the installation and the overall condition of the unit.
