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BS 7688:1993

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Test methods for electro-slag remelting furnaces

Available format(s)

Hardcopy , PDF

Superseded date

22-02-2006

Superseded by

BS EN 60779:2005

Language(s)

English

Published date

15-09-1993

€140.23
Excluding VAT

Committees responsible
National foreword
National annex
Section one - General
1 Scope
2 Object
3 Terminology
3.1 Electro-slag remelting furnace
3.2 Electroheating installation with electro-slag
      remelting furnace
3.3 Power of an electroheating installation (apparent
      power S in kilovoltamperes or active power P in
      kilowatts)
3.4 Power factor of an electroheating installation
      (cos phi)
3.5 Specific energy consumption e (kWh/kg)
3.6 Mould (crucible) of an electro-slag remelting
      furnace
3.7 Secondary electrical circuit of an electro-slag
      remelting furnace
3.8 Electro-slag remelting furnace electrode(s)
      (consumable electrode)
3.9 On-load voltage of an electro-slag remelting
      furnace (point C in the diagram of Appendix A)
3.10 Furnace rated current In (r.m.s. value-A) at
      nominal frequency fn
3.11 Rated values of an electro-slag remelting furnace
3.12 Rated frequency fn (Hz)
3.13 Continuous operation of a furnace
3.14 Steady state of an electro-slag remelting furnace
Section two - Technical tests
4 Types of tests and general conditions of tests
4.1 List of technical tests
Section three - Description of technical tests
5 Method for tests and technical measurements
5.1 Measurement of open-circuit secondary voltage of
      the electroheating installation
5.2 Measurement of electrical parameters of secondary
      circuit of the electroheating installation
5.3 Measurements of active power, reactive power and
      power factor of the electroheating installation
5.4 Measurement of temperature of components which are
      subject to magnetic field and/or radiated or
      convected heat
5.5 Measurement of temperature rise of the cooling
      circuit
5.6 Determination of the specific energy consumption
Appendix
A Diagram of an electro-slag remelting furnace
      circuit
National annex
NA (informative) Cross-reference

Provides a consistent method of testing remelting, refining metals through direct resistance heating of conductive slag.

Committee
PEL/27
DevelopmentNote
Supersedes 86/21628 DC (10/2005)
DocumentType
Standard
Pages
12
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

BS 6180:1999 Barriers in and about buildings. Code of practice

BS 4727-2:GRP10(1985) : 1985 GLOSSARY OF ELECTROTECHNICAL POWER TELECOMMUNICATION ELECTRONICS LIGHTING AND COLOUR TERMS - TERMS PARTICULAR TO POWER ENGINEERING - INDUSTRIAL ELECTROHEATING TERMINOLOGY

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