THE WELCH COMPANY
440 Davis Court #1602
San Francisco, CA 94111-2496
415 781 5700
S U M M A R Y
DIARY: December 16, 1991 04:33 PM Monday;
David Raffel submitted resume; discussion re DNRC engineer assignment.
2...Owner Should Insist on Compliance with Contract
3...Renk not Known for Manufacturing Large Speed Increasers
4...Speed Increaser Shop Drawings Require Special Expertise
5...Voith Responsible for Design
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0201 - Protrans Consultants 915 532 2282 fax 533 8497
020101 - Mr. David N. Raffel, P.E.; Director
Voith Contract Closeout
Submit Shop Drawings for approval, review
Special Startup Test Engineer
Opinion Contract Requirements,
Industry Standards; Expert opinions
Submittals, complete review, 911118
1110 - ..
1111 - Summary
111201 - David submitted his resume today via fax along with some suggestions
111202 - on approaching the PM situation vis a vis Voith, ref DRT 1. I called
111203 - and discussed his resume and ideas.
111205 - He agreed to consult with DNRC on an informal basis.
111207 - His memo, ref DRT 1, says he cannot take the DNRC assignment full time
111208 - because he received an acceptance today of a prior proposal he had
111209 - submitted to the national power utility of Costa Rica for engineering
111210 - services.
111213 - ..
1115 - Discussion
111601 - Owner Should Insist on Compliance with Contract
111603 - I explained that DNRC has been advised to demand that Voith construct
111604 - the work according to plans and specifications and that Voith submit
111605 - information that shows its work does this. David feels this is the
111606 - proper position for the owner to insist upon.
111608 - He feels Voith should submit the shop drawings for its work and the
111609 - Engineer should review for compliance with the contract, particularly
111610 - in light of the failures and admissions by Voith that the design was
111611 - defective in some respects (e.g. the gear set support bolts sheared
111612 - off). David feels the Owner has to be even more careful now because
111613 - of the past failure and the history of not submitting shop drawings.
111617 - Renk not Known for Manufacturing Large Speed Increasers
111619 - David advised that Renk has not been known as a manufacturer of large
111620 - size speed increasers as would be found on a 10 MW plant like
111621 - Broadwater. I commented that the list of installations submitted by
111622 - Voith in its letter of Dec 5, 1991, ref DRP 1, indicates it has done
111623 - only one speed increaser of comparable capacity to the 10 MW unit at
111624 - Broadwater, a 13 MW unit for a container ship in 1972. Its list for
111625 - speed increasers in the 1980's show only units under 5 MW.
111627 - David recommends that Goetz Pfafflin might be a good contact at Voith
111628 - in the US to seriously discuss resolution of contract disputes. He
111629 - does not know Greg Snyder, but has worked out problems with Goetz and
111630 - feels he is someone with whom the State can do business.
111634 - Speed Increaser Shop Drawings Require Special Expertise
111636 - David advised that DNRC needs an engineer who can interpret the shop
111637 - drawings for the speed increaser. He noted there is a lot more to the
111638 - speed increaser than simply the gear set; it is a very complicated
111639 - piece of machinery. He feels that if Voith did not submit shop draw-
111640 - ings on the speed increaser, then the Owner should insist on this step
111641 - and a careful review should be done because there is no other way to
111642 - ascertain whether the unit is adequate, particularly in light of the
111643 - failures that have already occurred.
111646 - Voith Responsible for Design
111648 - David emphasized his view that the Engineer and the Owner should
111649 - maintain Voith's responsibility for the design. This does not mean
111650 - that the design should not be reviewed by a competent engineer on
111651 - behalf of the Owner for compliance with the contract specifications
111652 - and industry standards. Deviations observed by the Engineer require
111653 - the contractor to show why its design is adequate and to correct it
111654 - where necessary. This does not pass responsibility to the Engineer
111655 - unless the Engineer insists on a change to which the contractor ob-
111656 - jects with competent evidence. At such point (which has not been
111657 - reached in the Broadwater situation), the Owner has a business deci-
111658 - sion to make with respect to permitting the contractor to proceed
111659 - under its reasoning or opting for the change. However, most design
111660 - review issues rarely reach this stage. On Broadwater the initial
111661 - issue is to do the review to see what the design shows.
111663 - Comment
111665 - We did not discuss the matter of the Engineer being held account-
111666 - able for negligence in not pointing out to the contractor a
111667 - defect in the design, if something is overlooked. My general
111668 - sense is that that the notice provisions in the contract for the
111669 - contractor to affirmatively advise the Engineer of any deviations
111670 - between its design and the contract specifications or industry
111671 - standards would be facts that weigh toward maintaining the
111672 - contractor's liability, if not an absolute bar to such an
111673 - argument. In any event, if such a policy was fully adopted, an
111674 - Engineer would be irrelevant as an active agent for the Owner.
111675 - Errors can occur at any point along the continuum of design,
111676 - oversight, construction and inspection. The purpose of review is
111677 - to increase the chance of catching mistakes so failure does not
111678 - occur with loss of property, utility or even life. Liability
111679 - avoidance must at most be a secondary consideration.
111683 - Philadelphia Gear as Source
111684 - of Expertise
111685 - ---------------------------
111686 - He does not know Geartech or Bob E and so cannot comment on their
111687 - ability in this area. David noted that Philadelphia Gear has had a
111688 - series of problems in recent years with large speed increasers
111689 - subcontracted to foreign firms. This experience has caused them to
111690 - study a variety of speed increaser problems and so they may be a good
111691 - source for names of people who have worked on these matters and could
111692 - assist the Department in the present situation.
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