8/18/2019 BPV Spring 2010 Final http://slidepdf.com/reader/full/bpv-spring-2010-final 1/12 The first wave of baby-boomers is due to reach retirement age by 2012 – and by 2020, it is estimated that Canada could be short about 1 million workers due to an ageing population and declining birth rates (Conference Board of Canada, 2000). By 2026, more than half the population will be over the age of 43 (Canadian Federation of Independent Businesses, 2003). What will this mean for our respective industries – and how will it impact safety? With fewer students entering technical trades and professions, a future shortage may exacerbate non-compliance issues and incidents in the boilers and pressure vessels industry as well as power engineering. Human capital and succession planning will become even more critical to the success of many organizations. In this context, greater knowledge transfer through documented knowledge management processes, with possibilities such as apprenticeship programs and engineering co-ops, will somewhat mitigate the safety risk with respect to the projected skill-gap, as well as enable continued access to the knowledge, skills and experience of the boilers and pressure vessels/operating (power) engineers work force. Since 2001, the Technical Standards and Safety Authority (TSSA) has acted as an influential advocate and, where appropriate, a lead to prompt both industry and government to create additional training capacity for required skills, enhance the availability of training programs, and attract new, younger and second-careeer workers into impacted fields. TSSA additionally raised potential concerns regarding the availability of skilled workers within each of its safety advisory councils. Responses varied significantly, but interest was demonstrated in coordinated actions to promote the training and availability of skilled resources. As such, TSSA has been involved in: • monitoring the situation to determine if such shortages begin to create public safety Trends suggest that Canada, and Ontario specifically as an economic driver, is beginning to feel the effect of a shortage in skilled trades and professions, and this will likely worsen if not immediately addressed. ISSUE I N T H I S Incident Review: Pressure Equipment Exposed to Fire 2 TSSAApproved Training Providers 3 Requirements to Manufacture or Install Piping Systems for ASME/NB Certificate Holders 3 New Requirements for R-744 — Carbon Dioxide as a Refrigerant 4 Is Media the Message? 5 National Board Announces Changes to Commissioning Process 6 New VP of Operations — Michael Beard 7 Impregnated Graphite Pressure Vessels 8 Unqualified Source Material for Nuclear Applications 9 Fusible Plugs for Hand-Fired Boilers 9 ASME B16.5 Slip-On Flange Attachment Welds 10 ASME Section IV — 2009 Addenda: Heating Boiler Minimum Design Thickness 11 Volume 7 Issue 1 Spring 2010 BOILERS AND PRESSURE VESSELS EDITION continued on page 12 Message from the Acting Director By John Marshall, Acting Director of Boilers and Pressure Vessels and Operating Engineers Safety Program Putting Public Safety First Up date
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TSSA Approved Training ProvidersBy Joe Raso, Examiner, Operating Engineers Safety Program
TSSA BOILERS AND PRESSURE VESSELS EDITION 3
Although studies show a decline in the number of
persons entering the profession of Power/
Operating Engineering within Canada, TSSA notes
that Ontario is being proactive in attracting people
to Power Engineering by offering practical time-
reduction incentive programs for approved training
courses.
The level of interest in such programs is rapidly
growing and there are currently four approved
TSSA training providers in the province of Ontario:
Confederation College in Thunder Bay, coordinated
by Ron Morancy; Cambrian College in Sudbury,
coordinated by Robert Baker; Lambton College in
Sarnia, coordinated by Bryan Aitken; and St. Clair
College in Windsor, coordinated by Eli Di Credico.
These four approved training providers have a total
intake of approximately 400-500 students annually
for one- to three-year courses. Each faculty has its
own uniqueness that attracts the younger
generation as well as second-career candidates
from all areas.
Each of these approved training providers has a
positive impact, not only for students but for future
training providers seeking time-reduction program
approval in the dynamic profession of Power
Engineering.
If your company intends to fabricate pressure
piping, regulated under Ontario Regulation 220/01
and in accordance with ASME Code B31.1 or
B31.3, you must also meet the additional
requirements of the CSA B51Boiler, Pressure
Vessel and Pressure Piping Code. The additional
requirements of CSA B-51 are mostly administrative
in nature and may be addressed in a supplement to
your existing Quality Control Manual. In this case, a
full survey at the shop location is not necessary and
TSSA can perform modified assessments based on
the manual and supplement review. This option is
not available to the ASME or NB certificate holder,which only holds a certificate for safety relief
devices.
Applicants must submit:
• an application;
• a deposit or purchase order;
• valid ASME or NB Certificate of Authorization;
and
• Quality Control Manual with supplement.
The following are guidelines to address in the
supplement:
• cover page and scope of the supplement (add
reference to CSA B-51);
• definition of code to include CSA B51;
• drawings and design control – provision to
ensure that pressure piping system drawings
are submitted to TSSA Boiler s and Pressure
Vessels (BPV) Engineering for registration of
the piping system;
• material control to state that fittings and flexible
hose assemblies used for the piping systemrequire a separate Canadian Registration
Number issued to a fitting manufacturer;
• Provision for Authorized Inspector employed
either by a jurisdiction or Authorized Inspection
Agency for inspection of the pressure piping;
• data report provision for a company
representative and the Authorized Inspector to
sign and date the “TSSA Piping System
Installation and Test Data Report"; and
• supplement control – provision for TSSA
representative sign-off on the supplement.
After a modified assessment, TSSA will issue a
Certificate of Authorization valid for three years – if
all requirements have been met.
Name or Location Change onCertificate of Authorization
Certificate holders from time-to-time change the
name or location on their Certificate of
Authorization. These changes require that the
certificate holder apply for a new certificate. TSSAhas posted guidelines on its website so certificate
holders know what to do if such a situation occurs.
If all requirements of the guidelines have been met,
TSSA can issue a Certificate of Authorization with
the new information; otherwise a new survey will be
required.
REQUIREMENTS TO MANUFACTURE OR INSTALL PIPINGSYSTEMS FOR ASME / NB CERTIFICATE HOLDERSBy Frank Musuta, Technical Specialist, Boilers and Pressure Vessles Safety Program
identifies carbon dioxide’s potential to sublimate at
low pressure that is solid carbon dioxide (dry ice)
forming from the vapour phase. This creates a
concern for relief valves to freeze up while relieving
pressure. Care must be taken when relieving
pressure or transferring liquid carbon dioxide to
guard against a blockage due to solid carbon
dioxide forming at low pressures. Relief valves are
positioned to discharge directly to the outdoors
without vent lines to minimize the potential of
blockage due to the formation of solid carbon
dioxide.
Although carbon dioxide is non-toxic, it is an
asphyxiant and therefore there is a real danger of
suffocation. Per Table 1 of CSA B52, the maximum
quantity of carbon dioxide permitted per occupied
space is 2.5 kg / 304 m3 (5.7 lb / 1000 ft3) and is
limited by IDLH4. Adequate ventilation must be
provided and carbon dioxide detectors are strongly
recommended. To compound this problem, liquid
carbon dioxide has a very high coefficient of thermal
expansion; use at ambient temperature could be
sufficient to expand trapped liquid, generate excess
pressure and rupture components. Thermal relief
valves must be considered in all sections of the
system where liquid carbon dioxide could be
trapped.
Other considerations such as chemical reactions
with carbon dioxide (with water to form carbonic
acid or with ammonia) in a cascade system using
carbon dioxide and ammonia can form the corrosive
ammonia carbonate or with some synthetic oils can
form carboxylic acid. Care needs to be exercised to
avoid cross contamination.
New installations of carbon dioxide refrigeration
systems require these designs to be registered with
TSSA and shall demonstrate compliance with all
aspects of the new CSA B52 requirements including
the new Annex J. Installation inspections by the
TSSA Authorized Inspector will require verification
that all required safety features have been provided
4IDLH - immediately dangerous to life or health; thmaximum concentration of a substance from whicone can escape within 30 minutes without any escape-impairing symptoms or irreversible healtheffects.
Care must be taken when relieving
pressure or transferring liquid
carbon dioxide to guard against a
blockage due to solid carbon
dioxide forming at low pressures.
IS MEDIA THE MESSAGE?
Engineer Kaivan Kia at TSSA participated in two
webinars hosted by an information handling
service, in which he confirmed the efficiency and
effectiveness of using the ASME code as well as
other codes on-line, a service that has been used
for quite a few years at TSSA. The two one-hour
webinars combined attracted over 1600
participants from around the world including theUnited States, Mexico, Europe and China!
Q: What does the UnqualifiedSource Material section of ASMESec. III, Div.1, NCA-3855.5permit?
A: It provides a Certificate Holder or an
accredited or qualified Material Organization
with a means of converting unqualified source
material to source material by following a
process of qualification defined in NCA-3855.5.
Briefly the activities are:
1) Accept certification of the requirements
performed during the melting, heat
analysis and heat treatment of the
unqualified source material by the
producing material manufacturer.
2) Verify that no welding was performed on
the unqualified source material by the
producing material manufacturer.
3) Perform or subcontract a product
analysis to verify the chemical
composition of each piece of unqualified
source material.
4) Perform or subcontract all other
requirements of the material
specification on either:
i) each piece of unqualified source
material (where Certificates of
Compliance [NCA-3862.1(g)] are
acceptable, testing of each piece is
not required) or;
ii) each heat and lot of unqualified
source material, only if heat and lot
identification and traceability have
been established by the supplier in
accordance with NCA-3855.5(3)(a)to (e), i.e.:
a) A Certified Material Test
Report is provided with the
unqualified source material.
b) The unqualified source
material is traceable to the
Certified Material Test Report.
c) Procurement documents
require that suppliers of
unqualified source material
establish written procedures
for identifying source
materials in a manner that
provides traceability to the
Certified Material Test Report
d) The Material Organization
reviews and accepts the
supplier’s identification and
traceability procedures and
verifies compliance with the
procedures at a frequencycommensurate with the
schedule of production or
procurement, but at least
once triennially.
e) Upon receipt, the Material
Organization shall verify by
review of objective evidence
that the requirements of the
procurement documents have
been met.
Note that the requirements of (2) and (3) above
apply to verification and testing of all unqualified
source material before performing the tests requiredin (4) above. It shall also be noted that the
provisions of (1) through (4) above are performed in
accordance with the Material Organization’s Quality
System Program.
Please refer to ASME Section III, Div.1, NCA-
3855.5 for a complete list of the code requirements
UNQUALIFIED SOURCE MATERIAL FORNUCLEAR APPLICATIONSBy Larry Calvert, Senior Technical Specialist, Boilers and Pressure Vessles Safety Program
FUSIBLE PLUGS FOR HAND-FIRED BOILERSBy Cathy Turylo, Engineering Manager, BPV Safety Program
The requirement for fusible plugs for hand-fired
boilers (solid fuel-fired boilers) has been reinstated
in the 2009Addenda of the ASME Code Section I
High Pressure Boilers. Fusible plugs must follow
the requirements provided in Appendix A, including
a minimum replacement interval of once per year.
All owners/users of hand-fired boilers should take
note of this safety device requirement for new
construction under ASME Section I.Adding a
fusible plug to existing equipment can be treated
as a repair 1; however , it is strongly recommended
that the original boiler manufacturer is consulted as
to the appropriate
location for the fusible plug.
1Repairs must be conducted by a Certificate of Authorization holder for repairs and can bewitnessed by an insurance inspector (if insured)or the TSSA Authorized Inspector.