DIN EN 60676 : 2012
Current
The latest, up-to-date edition.
INDUSTRIAL ELECTROHEATING EQUIPMENT - TEST METHODS FOR DIRECT ARC FURNACES
Hardcopy
German
09-01-2012
1. Scope and object
2. Normative references
3. Definitions
4. Type of test and general conditions of their performance
4.1 List of tests
4.2 General conditions of test performance
5. Recommendations on technical tests
5.1 Measurement of electrical insulation of high-current
line
5.2 Measurement of cooling-water flow rate and heat losses
5.3 Measurement of the speed of electrode motion
5.4 Check of the rated capacity of the furnace
5.5 Carrying out a short-circuit test during normal
operation (not applicable for d.c. direct arc furnaces)
5.6 Determination of the main operating characteristics
during the power-on time
5.7 Measurement of the specific electrode wear
5.8 Phase rotation check
Figure 1 - Wiring diagram for measurement of the resistance and
the high-current line (three-phase short circuit)
Figure 2 - Wiring diagram for measurement of the resistance and
reactance of the high-current line (one-phase short
circuit)
Figure 3 - Example of a wiring diagram of an a.c. arc furnace
equipped with saturable reactors
Annex ZA (normative) Normative reference to international
publications with their corresponding European
publications
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