[en] The operation of the Bruce 'B' Nuclear Generating Station is monitored and licensing requirements are enforced by the Atomic Energy Control Board (AECB) Bruce project staff, with appropriate support from other AECB personnel. The staff observes operation of the reactors, conducts audits, witnesses important activities, reviews station documentation and reports, and issues approvals where appropriate in accordance with license conditions. As required by a condition of its Operating Licence, Ontario Hydro each year submits Technical Reports which summarize various aspects of the operation of Bruce NGS 'B' during the year. When these reports have been reviewed by AECB staff, a formal Annual Review Meeting is held with the station management to discuss safety-related aspects of the station operation, and to inform Ontario Hydro of AECB staff conclusions with respect to the performance of Ontario Hydro in operating the station during the year

[en] The operation of the Bruce 'B' Nuclear Generating Station is monitored and licensing requirements are enforced by the AECB Bruce project staff, with appropriate support from other AECB personnel. The staff observes operation of the reactors, conducts audits, witnesses important activities, reviews station documentation and reports, and issues approvals where appropriate in accordance with licence conditions. As required by a condition of its Operating Licence, Ontario Hydro, each year, submits Technical Reports which summarize various aspects of the operation of Bruce NGS 'B' during the year. When these reports have been reviewed by AECB staff, a formal Annual Review Meeting is held with the station management to discuss safety-related aspects of the station operation, and to inform Ontario Hydro of AECB staff conclusions with respect to the performance of Ontario Hydro in operating the station during the year. The purpose of this report is to summarize and record the conclusions of the AECB staff assessment of the operation of Bruce NGS 'B' during 1987. Bruce NGS 'B' was operated safely by Ontario Hydro during 1987. Given the station and staff performance, there are no reasons to believe that the station will not be operated safely in 1988. AECB staff does see a need for increased diligence by Ontario Hydro in completing preventative and required maintenance in a more timely manner. Also, Ontario Hydro must take action to ensure that the requirement for minimum staff complement is met on every shift

[en] Bruce Nuclear Generating Station 'B' (BNGS'B') consists of 4 - 930 MW CANDU units (Units 5 to 8). the station, located on the shores of Lake Huron, is part of the Ontario Hydro Bruce Nuclear Power Development. This paper describes the bleed valve body wall loss discovered during operation and the subsequent efforts to correct the problem. The type and extent of damage is outlined as well as the repair method used. To ensure reliable, long term operation of the valves, a rigorous investigation was undertaken to identify the failure mechanism. Once a failure mode was established, long term solutions could be implemented to ensure valve integrity. (author). 3 refs., 1 tab., 6 figs

[en] The work to uprate the Bruce Nuclear Generating Station B Units from 845 MWe to more than 935 MWe is described. The benefits of this opportunity for inexpensive nuclear power are reviewed

No abstract available

[en] Some highlights of the survey are as follows. In 1985 Canadian uranium production was 10,870 tonnes, 30% of that of the Western world. The Key Lake uranium mine is now the world's largest. Point Lepreau station ranked second in 1985 among the world's 500-megawatt-plus reactors, with a capacity factor of 97.4%. Retubing of Pickering units 1 and 2 is proceeding satisfactorily. Pickering 8 and Bruce 7 went commercial in 1986, with Bruce 8 scheduled for early 1987. The radiation dose to Canadian workers per unit of nuclear electricity produced has declined 70-fold in the period 1970-1985. The final reports of the interfaith hearings acknowledged that nuclear energy is no different ethically from any other form of energy

[en] Load following of nuclear reactors is now becoming an economic necessity in some countries. When nuclear power stations are operated in a load-following mode, the reactor and the fuel may be subjected to step changes in power on a weekly, daily, or even hourly basis, depending on the grid's needs. This paper updates the previous surveys of load-following capability of CANDU fuel, focusing mainly on the successful experience at the Bruce B station. As well, initial analytical assessments are provided that illustrate the capability of CANDU fuel to survive conditions other than those for which direct in-reactor evidence is available. (author)

[en] The review presents an analysis of the Bruce 'B' Reactor Regulating System (RRS) Digital Control Computer (DCC) system, based on system documentation, significant event reports (SERs), question sets, and a site visit. The intent is to evaluate the reliability of the RRS DCC and to identify the possible scenarios that could lead to a serious process failure. The evaluation is based on three relatively independent analyses, which are integrated and presented in the form of Conclusions and Recommendations

[en] This is a report on the completion of work relating to the assessment of the capability of Bruce B NGS to cope with a large fire incident. This included an evaluation of an exercise scenario that would simulate a large fire incident and of their fire plans and procedures. Finally the execution of fire plans by Bruce B NGS, as demonstrated by their application of human and material resources during a simulated large fire, was observed. The fire fighting equipment and the personal protective clothing and associated equipment that was in use was all of good quality and in good condition. There had also been notable improvement in communications equipment. Similarly, the human resources that had been assigned to fire fighting and rescue crews and that were available were more than adequate. Use of a logical incident command system, and the adoption of proper policy and procedures for radio communications were equally significant improvements. Practice should correct the breakdowns that occurred in these areas during the exercise. As well, there remains a need for the development of policy on fire fighting and rescue operations with more depth and clarity. In summary, the key point to be recognized is the degree of improvement that has been realized since the previous evaluation in 1990. Clearly the Emergency Response Teams organization of Bruce B NGS is evolving into an effective fire fighting force. Providing that the deficiencies identified in this report are addressed satisfactorily, Fire Cross is confident that the organization will have the capability to provide rescue and fire fighting services that will satisfy the need. 2 figs

[en] The software change methodologies used by the Bruce B Control Unit remained largely unchanged between 1984 and 1994. Events within Ontario Hydro prompted the Control Computer Unit to assess the Bruce B software change methodologies against modern standards. Gaps were identified in 1994 in the following areas, software change control procedures, testing methodologies, test tools, software specifications and configuration management. This paper provides an overview of our experience to date with the upgrades made to our software quality assurance program for digital control computers. The recent completion of a major re-assembly of the Reactor Regulating System software will be used as a practical example to relate our experience. (author)