30 Questions
What is the primary purpose of consulting with the Control Person(s) Safety Co-Ordinator(s) of other Systems?
To agree, initiate and record necessary actions to establish and maintain safety precautions
Who is responsible for carrying out the necessary operations to establish safety precautions within the 660 MW LEPCL control boundary?
Senior Authorized Person
What is the purpose of the RISSP procedure?
To record inter-system safety precautions
What is the responsibility of the Designated Person?
To execute safety precautions with the coordination of Senior Authorized Person
What is the final step in the process of establishing safety precautions?
Signing a record of the confirmation
What is the purpose of checking the Safety Document?
To confirm that the safety precautions are adequate for the work to be done
What is the term for supervision by a person who is present at all times during the course of work or testing?
Personal Supervision
What is the purpose of a System Transfer Record?
To record the transfer of a LEPCL Limited Work Permit
What type of atmosphere is present in a vented working party confined space?
Open to the atmosphere
What is the definition of Zone 1 (Gas/Vapors)?
Locations where an explosive gas/vapors atmosphere is likely to occur under normal operating conditions occasionally
Who can work alone under supervision?
Zone Classification Competent Person
What is the term for the operation of circuit breakers, dis-connectors/isolators, and/or the application and removal of Primary Earths and fuses?
Switching
What is the first step to be taken when a fault-making device or a circuit breaker has been removed from its service position?
Immediately electrically discharge to earth
Why is it necessary to earth conductors on both sides of a break or connection?
To prevent voltage difference
What is a condition for working on one phase of phase segregated apparatus?
All three phases must be isolated
What is the primary purpose of venting plant and apparatus before work or testing commences?
To ensure atmospheric pressure internally
What is the purpose of taking precautions during work or testing on vented plant and apparatus?
To maintain established safe conditions
What is the main concern during the venting process?
Preventing danger from emissions
What is the primary purpose of the 660 MW LEPCL Safety Rules?
To mitigate risks associated with electro-mechanical systems
What is the significance of the preamble to the Safety Rules?
It provides a statement of policy, philosophy, and principles
What are the Safety Rules supported by?
Compulsory Safety Instructions and Codes of Practice
What is the collective responsibility of individuals involved in work related to the electro-mechanical systems?
To acquaint themselves with the Safety Rules and supporting documentation
What is expected of individuals in addition to complying with the Safety Rules?
To have a comprehensive understanding of and adhere to statutory regulations
What is the structure of the Safety Rules?
General Provisions, Basic Safety Rules, Procedures for Safety Documents, Responsibilities of Individuals, and Definitions
When transferring a Safety Document, who should the associated Keys, documents, and other items be surrendered or accounted to?
The Nominated Supervisor
Who is responsible for ensuring General Safety at and in the vicinity of the workplace?
The Nominated Supervisor
What is the requirement for reissuing a transferred or suspended Safety Document?
The reissue must be enacted under the Personal Supervision of a Senior Authorised Person
When suspending a Safety Document, who should the associated Keys, documents, and other items be surrendered or accounted to?
A Senior Authorised Person
What is the responsibility of the Nominated Supervisor in relation to Working Parties?
To instruct Competent Persons in charge of Working Parties
Who signs Part 3 of the Transfer Record when a Safety Document is reissued?
The recipient of the reissued Safety Document
Study Notes
• Control Person(s) Safety Co-Ordinator(s) consult with other Systems to agree, initiate, and record necessary actions to establish and maintain safety precautions on interconnected Plant and Apparatus across the control boundary.
• Senior Authorized Persons carry out or instruct others to carry out necessary operations to establish safety precautions within the 660 MW LEPCL control boundary, achieving Safety from the System, and obtaining confirmation that each instruction has been carried out.
• A Designated Person is responsible for executing safety precautions with the coordination of a Senior Authorized Person prior to issuing a Safety Document, completing and signing a record of the safety precautions taken.
• Personal Supervision involves a Person supervising personnel being supervised at all times during the course of work or testing.
• Switching involves the operation of circuit breakers, dis-connectors/isolators, or other methods of making or breaking an electrical circuit, and/or the application and removal of Primary Earths and fuses.
• System Transfer Record documents the transfer of a LEPCL Limited Work Permit, Permit for Work, or Sanction for Test, and items of Plant and Apparatus used separately or in combination in any process associated with the business of 660 MW LEPCL.
• Zone 0/20 refers to locations where an explosive gas/vapors or dust atmosphere is present continuously, or for long periods, or frequently.
• Zone 1/21 refers to locations where an explosive gas/vapors or dust atmosphere is likely to occur under normal operating conditions occasionally.
• When a fault-making device or a circuit breaker has been removed from its service position, it shall be immediately electrically discharged to earth, after which Primary or Drain Earths need not be applied.
• Before a break is made in a conductor or a connection is made across a break, Danger from voltage difference must be excluded, and if necessary, conductors shall be Earthed on both sides of and in close proximity to the point where a break or connection is to be made.
• Work may be carried out on one phase of phase segregated Apparatus with Primary Earths applied only to that one phase, provided that all three phases are Isolated.
• Venting of Plant and Apparatus involves carrying out venting in a controlled manner to ensure that there is no Danger to personnel from any emission from the vent, and that atmospheric pressure is established internally in the Plant and/or Apparatus.
• Precautions shall be taken to maintain the established safe conditions during the work or testing.
Test your knowledge on the procedures and protocols involved in establishing and maintaining safety precautions in power plant operations, including consulting with control persons and senior authorized personnel. This quiz covers the necessary actions to ensure safe operations within the control boundary.
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