BS 787-4:1972 - Specification for mining type flameproof gate-end boxes. Gate-end boxes for drilling machines (for use on 3-phase a.c. circuits up to 650 V)

BS 787-4:1972

Specification for mining type flameproof gate-end boxes. Gate-end boxes for drilling machines (for use on 3-phase a.c. circuits up to 650 V)

Status : Confirmed, Current   Published : January 1972

Format
PDF

Format
HARDCOPY



For controlling electrically operated drilling machines. Service conditions; ratings, design, construction and means of protection; test requirements.




Standard NumberBS 787-4:1972
TitleSpecification for mining type flameproof gate-end boxes. Gate-end boxes for drilling machines (for use on 3-phase a.c. circuits up to 650 V)
StatusConfirmed, Current
Publication Date25 January 1972
Confirm Date01 June 2016
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Draft Superseded By70/34177 DC
DescriptorsGate-end boxes, Protected electrical equipment, Electric enclosures, Mining equipment, Power transformers, Dry-type transformers, Transformers, Frequency changers, Drilling machines, Rated voltage, Rated current, Rated frequencies, Marking, Design, Electric connectors, Electrical protection equipment, Type testing, Temperature rise, Electrical safety, Endurance testing, High-voltage tests, Drilling (mineral extraction)
ICS29.130.20
29.260.20
Title in FrenchBoites de fin de voie anti-deflagrantes pour mines. Specification. Boites de fin de voie pour foreuses (pour circuits c.a. triphases jusqu'a 650 V)
Title in GermanFlammfeste Abbauortboxen fuer den Bergbau. Spezifikation. Abbauortboxen fuer Bohrmaschinen (fuer dreiphasige Wechselstromkreise bis 650 V)
CommitteeMRE/3
ISBN0 580 06867 6
PublisherBSI
FormatA4
DeliveryYes
Pages18
File Size606.6 KB
Price£130.00


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