Value Engineering (????)

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Value Engineering (????)

• 1. VE??? ??
•  
• 2. ?? 1 - SK??
•  
• 3. LCC??? ??
•  
• 4. ?? 2 - ????? LCC??? ?? ??
•  
• 5. ?? 3 - ????? ?? ??? ??? VE??
•  
• 6. ?? 4 - GE? VE??
• 7. ?? ??

???? 3? 52001051 ???? ??? 52020673 ????
??? 52057154 ???? ???
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VE ? ??? ??

• 1.??? ??
• ??? VE? 2? ???? ??? 1947 General
• Electric? Lawrence D. Miles??? ??
• 2? ???? ? ??? ????? ???? ??? ? ?
• ? VE?? ????? ??
• 2.??
• ??, ??? ?? ??, ???, ??, ??, ????,
• ????? ???? ??, ?? ? ????? ??? ??
• ? ????? ?? ???? ???? ???? Cost? ?
• ?? ???? ?

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??? ??????(LCC Life Cycle Cost)?? ?? ???? ???
??? ?? ???, ????? ?? ??? ? ?? ??? ???? ?? ?????
??? ?? ???, ?? ?? ???? ???? ????.(?? VE? ??? -
???, 2000)
3. ?? ?? ?? ???? ?? ??? ???. ?? ???? ??? ????,
???? ??? ??? ??? ?????? ??? ??? ?? ?? ??? ????
????.
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4. ?? VE? ?? VE

• ?? VE
• - ??, ?? ?? ? ???? ????? VE (VEP)
• - ?? VE?? ???? ??.
• ?? VE
• - ???? ?? ? ??????? VE(VECP)
• - ???? ???? ??

• 5. ?? VE? ?? ??
• ???? ????? ??? ?? ???? ????? ?? ??? ?? ??? ????.
• ?? ??? ???? ????? ??? ?? ???? ?? ?? ????? ?????
  ??.
• ????? DB???? ??? ??
• ?? ??, ?? ??

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• ?? Project? ???? ??? ?? ??? ????? ?? ?? ?????
  ?????? ???? ???? ????? ????? ??, ??, ?? ????? ??
  ?? ????? ??????? ??? ???? ???

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2. ?? 1 - SK?? ??? VE ??? ?? ???

• 1.Engineering? ?? ??
• ???, ?? ?? ? ???? ??? ??
• Integrated Engineering System ???? ?? DB? ???? ??
• ??? ???? ?? ?? ??
• ??? ??? ???? ???? ? ??? ??
• ?? ? ??? ??? ??
• ?? ??? ?? ? ??? ??????? ?? ??? ??

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2.Engineering? ??
BEDD PFD/ PID Hydraulic Process Data
Thermal Design Commissioning
Electrical Equipment Single Line Diagram
Cable Routing Power Telecommunications
Building Shelter Landscaping
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3.Engineering? ???? ???
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4.EMS, EDCS? MES Solution

• MES (Manufacturing Execution Systems)
• IMS (Information Management System)
• APC (Advanced Process Control)
• RT-OPT (Real-Time Optimization)
• OTS (Operator Training Simulator)

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3. LCC??? ??

• LCC ??? ??
• ????? ?? ?? ?? ??? ?? ?? ????? ????? ? ?? ???
  ???? ?? ??? ??? ?? ??? ??? ??? ??? ??? ??? ????
  ??
• LCC? ??
• ?? ??????? ??? ?? ???? ???? ?? ???? ?? ???
  ????? ??? ? ?? ???? ?? ?? ???? ?? ??? ?????? ??.
• ???? ????
• LCC ????? ??
• ?????? ??(Safety), ???(Reliability),
  ???(Operability), ????
• LCC? ????
• LCC? ????? ??? ?? ? ?? ???? ????? ??
• LCC ? ????? ???? ??

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• LCC? ??
• 1. ?? ???? ?? ??? ???? ????? ??? ??? ?? ????
  ?? ??? ??? ??? ??? ? ?? ???? ??????
• 2. ????? ??? ??? ?? ???? ??? ??? ??? ?? ????
  ??? ??
• 3. ????? ?? ??? ????? ?????? ???? ????? ??
• 4. ???? ??? ????? ?? ????, ??? ??? ??, ???? ??
  ? ?? ?????? ???? ??? ??? ?????? ??? ????? ???
  ???.
• (Life Cycle Cost? ????? ??? ??, ??, ????? ?
  ???? ??? ??? ?? ???? ???, Life Cycle Costing? ?
  ???? ???? ??, ??? ???. ?????? ? ?????? ???? ???
  ???? ????? ????? ????? ??????, ?? ?? ???? ?? Life
  Cycle Cost?? ????? ? ? ??. )

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• LCC? ??? ??
• ????? LCC
• ????? ?????? ????? ?? ???? ? ?? ??? ??
• - ????? ?? ???? ??
• ????? LCC
• ????? ?? ????? ??? ??? ?? ???? ???? ????
  ?????? ????? ??? ????? ??
• ???? ??? ? ?? ??? ? ?? ?? ?? ??? ??? ??
• ??????? LCC
• ?? ???? ??? ?? ?? ? ??? ??? ????? ???? ??? ? ?
  ??? ??? ??. ?? ?? ??? ???? ??, ???? ???? ?? ?????
  ?? ????? ????? ?????? ?? ? ?? ???? ??? ?? ??? ?
  

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• ????? LCC
• ???? ????? ??? ?? ????? ??? ????? ????? ??
• ???? ??? ??? ??? ???? ???? ?? ????? ????
  ??????
• ????? ????? ?? ?? ??? ???? ??? ?? ??
• ?LCC ??? ?? ??? ?? ???? ?? ???? ??
• ??????? ??? ??? ?? ?? ??? ??? ????? ???? ??? ?
  ??? ??? ??? ?? ????? ??? ????? ??? ??
• ??/??????? LCC
• ???? ??? ???? ?? ? ?????? ? ????? ??? ??? ???
  ???? ????
• ?? ??? ??? ??? ?? ????? ??? ?? ???? ??? ????
  ??

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4. ?? 2 - ????? LCC??? ?? ??

• ?????? ? ??? ????? ???? ??? ?? ? ???? ? ??????
  ??.
• ?? ?????? ? ??? ????? ??? ???? ?? ????? ??? LCC
  ??? ?? ??? LCC??.
• ?? ? ?? ??? LCC??? ??? ??.
• ?? ???? ???? ??
• ?? ?? S? S???
• ?? ?? 15? ?? 1?
• ??? ?? 23.5?(????)
• ?? ???? 50?
• ?? ??? 5

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LCC??? ?? Total Cost ??
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?? ?? ??? ?? Total Cost ??
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LCC Model ? ??

• 1.LCC ??? ?? ???? ?? ????? LCC?? ??? ??
• -?? ??? 8,670,834?
• -?? ?? 6,693,292?
• -? LCC?? 15,364,126?
• 2.?? ? ?? LCC??? ??? ??
• -?? ??? 8,474,685?
• -?? ?? 7,353,089?
• -? LCC?? 15,827,774?
• 3.??
• -?? ??? 2.31
• -?? ?? 8.97
• -? LCC?? 2.93

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5. ?? 3 - ????? ?? ?? ? ??? VE??
?? ?????? ???
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1. ?? ??

• ??? ?? ? ????? ?? ?? ????? ?? ??? ???? ??? ??
• ?? ??
• ???????????? ?? ??
• ???? ??? ??? 145??
• ??6000?
• ????1996.122000.9
• ????751? ?(?? ? ???? ??)

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?? ?? ??? ???? ??
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2. VE ??

• ?? ?? ?? ?? ? ????? ??? ? ?? ?????? ???
  ?? ??? ?? ?? ? ?????
• ?? ?? ??? ???

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?? ???? ?? ??
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??? ??

• ????? ?? ??!
• 99? 2??? 2?? ????, ????, ????? ?? ????
• ?? ?? ???- ???? ?????? ???

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6. ?? 4 - GE? VE??

• Vinnys Bottom Line
• A Look At Value-Engineering Ground Fault
  Protection
• By Vincent Incorvati, GE Account Manager
• As a sales engineer covering the commercial
  construction market my customer base
• is mainly made up of electrical contractors who
  are always looking for the best price,
• the bottom line. Many times even the bottom line
  price is not good enough and the
• contractor is looking for more. Heres a look at
  how to reduce the price of a typical
• ground fault project while keeping it sound and
  possibly even improving on it from a
• technical engineering perspective.
• Systems Configured and Priced
• Where ground fault protection is required in
  certain healthcare applications, NEC
• 517.17(B) extends that requirement to two levels
  of ground fault protection. This is
• done for selectivity and thereby continuity of
  service for the system. In fact, the
• scope of these applications has been expanded in
  the 2005 code. For these
• applications, and others where up time is vital,
  well investigate some considerations
• in their design. Two case conditions were priced
  and analyzed as follows

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2. Same as item 1 but there are only seven
feeders with (LSIG) in the main switchboard, as
follows 3-600A, 4-400A. The seven breakers
smaller than 400A are placed in a separate 600A
panelboard, which is fed from the extra 600A
feeder added to the main switchboard. These
smaller breakers only include standard trip units
without ground fault protection.
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Analysis 1. This represents our base case. 2.
Even though an extra 600A breaker was added to
the main switchboard in this case, as well as a
separate 600A power panelboard, the net result is
an equipment cost savings of about 20. This is
due to the relatively high cost adder for the
ground fault function in the smaller breaker
ratings. In general there is a cost advantage to
limit the main switchboard breaker sizes to 400A
or larger when they are to include GF protection.
Depending on other details of the overall
project, this change could also be beneficial in
many other ways including selectivity and future
expansion capability. Other considerations are
also important to take into account prior to
implementing such a change, like the space needed
for an additional panelboard, and the cost to
have it field installed. If these items can be
accommodated then why not collect the savings?
Conclusion Proper evaluation of project
requirements may lead to true value improvements
that can enhance the overall design while
reducing costs. They must always take into
consideration code requirements, good engineering
practice and the unique needs of the system.
Note key to abbreviations used Aamperes,
AICamps interrupting current, Kx1000,
LSIGlong-time short-time instantaneous and
ground-fault trip function, phphase,
wwire. Vinnys Bottom Line, by V. Incorvati GE
ESL Magazine, spring 2005
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???? ? ?? ???

• ?? ???? www.vekorea.com
• ?? ??? ? www.hhi.co.kr
• ?? ?? ? www.hdec.co.kr
• ???? ? www.daelim.co.kr
• SK?? ? www.skec.co.kr
• GS?? ? www.gsconst.co.kr
• ?? ?? ?? ? www.dsland.co.kr
• ???? ? www.kumhoenc.com
• SAVE International ?? www.value-eng.org
• ?? ?? ?? www.cak.or.kr
• ?????? www.ksce.or.kr
• ?????? www.aik.or.kr
• Vinnys Bottom Line, by V. Incorvati GE ESL
  Magazine, spring 2005
• ???? ? 30? 5? 2001? 5?? ?? ?? ???
• ???? LCC ?? ?? 1991? ??? ?????? / ???
• ?????? ??? / ???
• ?? ?? ?? ??? / ??? ?
• VE?? ????? / ???