JB/T 6312-1992Flameproof transformer integrated units for electric coal drills in mines (English PDF)
矿用隔爆型煤电钻变压器综合装置
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
June 26, 1992
Implementation date
January 1, 1993
Scope
JB/T 6312-1992 is the English-translated version of 矿用隔爆型煤电钻变压器综合装置.
JB/T 6312-1992 is the Chinese machinery industry standard covering flameproof transformer integrated units for electric coal drills in mines. It was issued on 26 June 1992 and has been in force since 1 January 1993, as a first edition.
The document is under the responsibility of the Ministry of Industry and Information Technology. This page is published from the official record of the 1992 edition.
The figures, limits and tables the standard contains are those of the document itself, delivered in full with the English translation.
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Document preview — JB/T 6312-1992
National Standard of the People's Republic of China
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- [Preview only]
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 Type
- 3.2 Basic parameters
- 4 Types and basic parameters
- 4.1 Types
- 4.2 Model designation
- 4.3 Nominal operating conditions
- 4.4 Safety and hygiene
- 4.5 Welding
- 4.6 Bridge (After crane operation mechanism assembled)
- 4.7 Assembly
- 4.8 Electrical control equipment
- 4.9 Steel pretreatment and painting
- 5 Technical requirements
- 5.1 General requirements
- 5.2 Safety requirements
- 5.3 Cold and hot working forming
- 5.4 Rated load test
- 5.5 Whole machine noise test
- 5.6 Static rigidity test
- 5.7 Dynamic load test
- 5.8 Crane span deviation
- 5.9 Diagonal difference of bridge
- 6 Test methods
- 6.1 Exit-factory inspection
- 6.2 Type inspection
- 7 Inspection rules
- 7.1 Marking
- 7.2 Packaging, transportation and storage
- 7.3 Transportation
- 7.4 Storage
- 8 Marking, packaging, transportation and storage
- 9 标志和标签 9 Marking and labeling
1 Foreword
JB/T 6312-1992 was issued by Ministry of Industry and Information Technology of the People's Republic of China on 26 June 1992.
The JB/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.
The document runs to 15 pages in English translation.
2 Scope Preview
JB/T 6312-1992 carries no ICS number and no Chinese Standard Classification code.
This catalogue holds 21,922 other JB/T standards.
Of the 5,298 JB/T standards that do carry an ICS number, 1,460 (28%) fall under ICS 25, in the field of manufacturing engineering.
3 About this standard
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
English translation: about 15 pages
4 Related standards
Standards on related subjects:
GB/T 3836.4-2021 — Explosive atmospheres - Part 4: Equipment protection by intrinsic safety 'i'
GB/T 3836.8-2021 — Explosive atmospheres - Part 8: Equipment protection by type of protection 'n'
GB/T 3836.9-2021 — Explosive atmospheres - Part 9: Equipment protection by encapsulation 'm'
JB/T 8739-2015 — Explosion-proof high voltage switchgear for mines
JB/T 6749-2013 — Electrical apparatus for explosive gas atmospheres - Explosion-proof lighting (power) distribution box
JB/T 4002-2013 — Connecting terminals for explosion-proof low-voltage electrical apparatus
5 Classification and status
Chinese Standard Classification (CCS): K 35
Prefix JB/T: recommended standard.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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