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Title / Control arc furnace process parameters and operation from a control room
Level / 4 / Credits / 40
Purpose / This unit standard is for people working in the steel manufacturing sector.
People credited with this unit standard are able to: control arc furnace process; control floor operations; and optimise arc furnace condition.
Classification / Steel Manufacturing > Steel Making
Available grade / Achieved
Explanatory notes
1Definition
Company documentation refers to the documented procedures, manufacturer’s manuals and selected reference texts for the equipment and process.
2Legislation relevant to this unit standard includes but is not limited to – Health and Safety in Employment Act 1992, Resource Management Act 1991.
3This unit standard must be assessed in a workplace environment.
Outcomes and evidence requirements
Outcome 1
Control arc furnace process.
Evidence requirements
1.1Monitoring and interpretation of output data enable control parameters to be adjusted to maintain technical process specifications.
1.2Output steel meets company specifications for temperature, chemistry, and volume.
1.3Melts are completed in time for scheduled tap times.
Outcome 2
Control floor operations.
Evidence requirements
2.1Communication of process requirements to floor operators enables company documentation for floor operations to be completed in accordance with the production schedule.
Rangeprocess requirements include but are not limited to – tapping, additions, lancing, sampling, temperature testing.
2.2Communication of process requirements to other steelmaking areas enables supply of steel to meet production schedule.
Rangeother steelmaking areas include but are not limited to – oxy blast vessel, caster, ladle treatment, ladle operators.
2.3Operation of oxygen manipulation and burner is in accordance with company documentation.
2.4Operation of carbon injection is in accordance with the company documentation.
2.5Control and management of hot heel are in accordance with company documentation.
Outcome 3
Optimise arc furnace condition.
Rangecondition includes but is not limited to – of refractory lining, lance, mouth, taphole, roof, electrodes, cooling system, emissions control.
Evidence requirements
3.1Monitoring of arc furnace condition is carried out visually and by alarm system, and enables company documentation for maximising the productive life of the furnace to be achieved.
3.2Organisation of any remedial action enables furnace utilisation requirements and furnace life to be achieved to company documentation.
Rangeremedial action includes but is not limited to – clean, replace, repair.
3.3Maintenance of slag foaming is in compliance with the set procedure.
Planned review date / 31 December 2012Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for AssessmentRegistration / 1 / 30 January 1997 / 31 December 2012
Revision / 2 / 18 July 2000 / 31 December 2012
Rollover and Revision / 3 / 15 March 2012 / N/A
Consent and Moderation Requirements (CMR) reference / 0013
This CMR can be accessed at
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.
Comments on this unit standard
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CompetenzSSB Code 101571 / New Zealand Qualifications Authority 2018