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Evidence Guide: MARC017 - Operate 240 to 440 voltage alternating current electrical systems

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MARC017 - Operate 240 to 440 voltage alternating current electrical systems

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare for operation

  1. Risks to self, others and the environment are identified according to organisational procedures
  2. Routine pre-operational checks of electrical systems are completed prior to use according to manufacturer specifications and organisational procedures
Risks to self, others and the environment are identified according to organisational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Routine pre-operational checks of electrical systems are completed prior to use according to manufacturer specifications and organisational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operate electrical systems

  1. Suitable personal protective equipment is selected and used according to organisational procedures
  2. Electrical systems are operated in a safe and controlled manner
  3. Performance of direct current (DC) and AC electrical systems is monitored
  4. AC electrical demand is monitored and additional generators are paralleled or disconnected as required
  5. Ship to shore electrical supply is connected and disconnected when required following established practices and organisational procedures
  6. Faults or malfunctions are identified and reported according to organisational procedures
  7. Faults or malfunctions are rectified and corrective actions are taken and recorded according to organisational procedures
  8. Procedures to be undertaken in emergencies are recognised and implemented
Suitable personal protective equipment is selected and used according to organisational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Electrical systems are operated in a safe and controlled manner

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Performance of direct current (DC) and AC electrical systems is monitored

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

AC electrical demand is monitored and additional generators are paralleled or disconnected as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Ship to shore electrical supply is connected and disconnected when required following established practices and organisational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Faults or malfunctions are identified and reported according to organisational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Faults or malfunctions are rectified and corrective actions are taken and recorded according to organisational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Procedures to be undertaken in emergencies are recognised and implemented

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete operations and check electrical systems

  1. Shut-down procedures are conducted according to manufacturer instructions and organisational procedures
  2. Operational records are completed according to organisational procedures
Shut-down procedures are conducted according to manufacturer instructions and organisational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operational records are completed according to organisational procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

1

Prepare for operation

1.1

Risks to self, others and the environment are identified according to organisational procedures

1.2

Routine pre-operational checks of electrical systems are completed prior to use according to manufacturer specifications and organisational procedures

2

Operate electrical systems

2.1

Suitable personal protective equipment is selected and used according to organisational procedures

2.2

Electrical systems are operated in a safe and controlled manner

2.3

Performance of direct current (DC) and AC electrical systems is monitored

2.4

AC electrical demand is monitored and additional generators are paralleled or disconnected as required

2.5

Ship to shore electrical supply is connected and disconnected when required following established practices and organisational procedures

2.6

Faults or malfunctions are identified and reported according to organisational procedures

2.7

Faults or malfunctions are rectified and corrective actions are taken and recorded according to organisational procedures

2.8

Procedures to be undertaken in emergencies are recognised and implemented

3

Complete operations and check electrical systems

3.1

Shut-down procedures are conducted according to manufacturer instructions and organisational procedures

3.2

Operational records are completed according to organisational procedures

Required Skills and Knowledge

1

Prepare for operation

1.1

Risks to self, others and the environment are identified according to organisational procedures

1.2

Routine pre-operational checks of electrical systems are completed prior to use according to manufacturer specifications and organisational procedures

2

Operate electrical systems

2.1

Suitable personal protective equipment is selected and used according to organisational procedures

2.2

Electrical systems are operated in a safe and controlled manner

2.3

Performance of direct current (DC) and AC electrical systems is monitored

2.4

AC electrical demand is monitored and additional generators are paralleled or disconnected as required

2.5

Ship to shore electrical supply is connected and disconnected when required following established practices and organisational procedures

2.6

Faults or malfunctions are identified and reported according to organisational procedures

2.7

Faults or malfunctions are rectified and corrective actions are taken and recorded according to organisational procedures

2.8

Procedures to be undertaken in emergencies are recognised and implemented

3

Complete operations and check electrical systems

3.1

Shut-down procedures are conducted according to manufacturer instructions and organisational procedures

3.2

Operational records are completed according to organisational procedures

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and include:

carrying out necessary calculations associated with managing electrical systems including:

battery ampere-hours and efficiency

series and parallel configuration of battery supply

adding resistors in series and parallel, and calculating current

connecting to shore power

isolating electrical circuits

maintaining records of operating and maintaining electrical systems, and any related safety incidents

monitoring and evaluating performance of electrical systems

performing switchboard operations including the monitoring of electrical supply and procedures for paralleling generators

reading and interpreting:

manufacturer instructions for the operation of electrical systems

maritime regulations, rules and instructions

recognising problems that may occur with electrical systems and taking appropriate preventative and remedial action

recognising when performance of electrical systems is unsatisfactory or outside of specified limits and taking appropriate action

starting emergency generator and supply switchboard where available

using hydrometer

using multi-meter to test for voltage and continuity.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

battery:

operation

charging circuits and hazards associated with charging batteries

types, care and hazards

characteristics of electrical systems

dangers associated with operation of shipboard electrical systems and related hazard prevention strategies

earth detection devices

electrical distribution systems including emergency arrangements

faults associated with electrical systems and appropriate preventative and remedial action, and solutions

methods for managing operation of shipboard electrical systems

motor and alternator construction

motor starter circuits

own ability and limits to rectify irregularities and faults

principles of operation of various shipboard emergency systems including fire detection system, internal communications system and emergency generator

procedures for monitoring and evaluating performance of electrical systems

relevant sections of state and territory maritime regulations, National Standard for Commercial Vessels (NSCV) and Uniform Shipping Laws (USL) Code

relevant work health and safety (WHS)/occupational health and safety (OHS) legislation and policies

safety devices fitted to switchboard and other electrical systems including fuses and circuit breakers

sequence of required action when power unit becomes overloaded

shore power arrangements

single and three phase AC power generation.

Range Statement

Specifies different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Electrical systems must include:

alternators

batteries and associated circuits

control circuits

fire detection

motors

starter circuits

switchboard

Emergencies must include:

failure of:

generator

emergency generator

fire

flooding

Operational records must include:

logbooks

maintenance records

operational orders from the organisation’s safety management system

plant and equipment manufacturer instructions and recommended procedures

relevant maritime authorities documentation relating to operating electrical systems