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Mitigating risks associated with Lockout/Tagout (LOTO) of hazardous energy in Nigeria : a tracker approach / E.A. Aghenta.Aghenta, Emmanuel Aigbokhaibho January 2012 (has links)
The main objective of the study was to determine the risk(s) associated with lockout/tagout of hazardous energy and propose a new LOTO procedure which tracks the implementation of LOTO to mitigate against identified risks as a basis for promotion of safety. The study focuses on electrical personnel working in PHCN. Only electrical accident risks are examined, not other types of risk e.g. mechanical, chemical, and nuclear.
To gather material for this study, a questionnaire was distributed amongst electrical workers in PHCN and their supervisors were interviewed. Relevant literature and publications were studied as reference.
According to electrical personnel experience, electrocution, arc flash, arc blast, burns and lockout and tagout of the wrong electrical circuit are seen as the biggest electrical safety risk with regards to LOTO of hazardous energy.
The research reveals new information about electrical accident risks. This information is used to create a procedure for tracking LOTO of hazardous energy. The procedure can be utilized in the mitigation of electrical risks and promotion of / Thesis (MIng (Development and Management Engineering))--North-West University, Potchefstroom Campus, 2013.
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Mitigating risks associated with Lockout/Tagout (LOTO) of hazardous energy in Nigeria : a tracker approach / E.A. Aghenta.Aghenta, Emmanuel Aigbokhaibho January 2012 (has links)
The main objective of the study was to determine the risk(s) associated with lockout/tagout of hazardous energy and propose a new LOTO procedure which tracks the implementation of LOTO to mitigate against identified risks as a basis for promotion of safety. The study focuses on electrical personnel working in PHCN. Only electrical accident risks are examined, not other types of risk e.g. mechanical, chemical, and nuclear.
To gather material for this study, a questionnaire was distributed amongst electrical workers in PHCN and their supervisors were interviewed. Relevant literature and publications were studied as reference.
According to electrical personnel experience, electrocution, arc flash, arc blast, burns and lockout and tagout of the wrong electrical circuit are seen as the biggest electrical safety risk with regards to LOTO of hazardous energy.
The research reveals new information about electrical accident risks. This information is used to create a procedure for tracking LOTO of hazardous energy. The procedure can be utilized in the mitigation of electrical risks and promotion of / Thesis (MIng (Development and Management Engineering))--North-West University, Potchefstroom Campus, 2013.
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A new maintenance strategy for Power Holding Company Nigeria to contest the current power demand problem / O.K. EwulumEwulum, Ogemdi Kilian January 2008 (has links)
Power Holding Company of Nigeria (PHCN), responsible for generating,
transmitting and distributing electricity in Nigeria is being faced with an apparent
huge maintenance problem which seemingly contributes greatly to the power
demand problem of the country.
This apparent maintenance problem is investigated by surveying its root causes
through interviews, questionnaires and data gathered from selected case studies.
Questionnaires were used scientifically with a confidence level of 95% and
interval of +-5% and +-4.4% to establish a high level of integrity on data
gathered. Findings and deliverables are compared to South Africa’s power utility
company Eskom for validation of the final deliverable.
With the findings of this survey, the research problem was overcome by
developing a new maintenance strategy and work authorization system for the
company while making some recommendations on the training being given to its
maintenance personnel.
The New strategy called ‘Utility Availability Centered Maintenance Strategy’ or
UACMS is presented in the form of a flow chart/ block diagram with its different
sections fully explained. It mainly combines preventative, predictive and
corrective maintenance strategies alongside other modern maintenance
techniques. It’s all linked to a computer database support to ensure high
effectiveness. Furthermore, the work authorization system called ‘Internal Task
Authorization form’ serves to ensure responsibility in task execution within the
company.
During the course of this research, an excessive application of corrective
maintenance strategy, lack of root cause analysis and unavailability of computer
based applications were discovered in PHCN. / Thesis (M.Ing. (Development and Management Engineering))--North-West University, Potchefstroom Campus, 2009.
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A new maintenance strategy for Power Holding Company Nigeria to contest the current power demand problem / O.K. EwulumEwulum, Ogemdi Kilian January 2008 (has links)
Power Holding Company of Nigeria (PHCN), responsible for generating,
transmitting and distributing electricity in Nigeria is being faced with an apparent
huge maintenance problem which seemingly contributes greatly to the power
demand problem of the country.
This apparent maintenance problem is investigated by surveying its root causes
through interviews, questionnaires and data gathered from selected case studies.
Questionnaires were used scientifically with a confidence level of 95% and
interval of +-5% and +-4.4% to establish a high level of integrity on data
gathered. Findings and deliverables are compared to South Africa’s power utility
company Eskom for validation of the final deliverable.
With the findings of this survey, the research problem was overcome by
developing a new maintenance strategy and work authorization system for the
company while making some recommendations on the training being given to its
maintenance personnel.
The New strategy called ‘Utility Availability Centered Maintenance Strategy’ or
UACMS is presented in the form of a flow chart/ block diagram with its different
sections fully explained. It mainly combines preventative, predictive and
corrective maintenance strategies alongside other modern maintenance
techniques. It’s all linked to a computer database support to ensure high
effectiveness. Furthermore, the work authorization system called ‘Internal Task
Authorization form’ serves to ensure responsibility in task execution within the
company.
During the course of this research, an excessive application of corrective
maintenance strategy, lack of root cause analysis and unavailability of computer
based applications were discovered in PHCN. / Thesis (M.Ing. (Development and Management Engineering))--North-West University, Potchefstroom Campus, 2009.
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