DL/T 284-2012
Hot-dip galvanized bolts and nuts for tower And hardware of transmission lines (English Version)
- Standard No.
- DL/T 284-2012
- Language
- Chinese, Available in English version
- Release Date
- 2012
- Published By
- Professional Standard - Electricity
- Status
- Replace By
- DL/T 284-2021
- Latest
- DL/T 284-2021
- Replace
- DL/T 764.4-2002
- Scope
- This standard specifies hot-dip galvanized hexagonal head bolts (hereinafter referred to as bolts), hexagonal nuts (hereinafter referred to as nuts), and hexagonal thin nuts (hereinafter referred to as thin nuts) for transmission line towers and power fittings with thread specifications of M10 to M64. ) and foot nail type and size, technical requirements, application and applicability of test methods, test methods, acceptance inspection and assembly packaging and marking, as well as the use of internal threads with increased tapping size to accommodate the hot-dip galvanized layer, Meet the matching requirements for external threads and internal threads. This standard applies to transmission line towers, power fittings and other steel fastening connection parts.
DL/T 284-2012 Referenced Document
- GB/T 1800.2-2009 Geometrical Product Specifications (GPS) Limits and fits--Part 2:Tables of standard tolerance grades and limit deviations for holes and shafts
- GB/T 192 General purpose metric screw threads--Basic profile
- GB/T 196 General purpose metric screw threads--Basic dimensions
- GB/T 197 General purpose metric screw threads—Tolerances*， 2018-03-15 Update
- GB/T 228 Metallic materials--Tensile testing at ambient temperature
- GB/T 229 Metallic materials—Charpy pendulum impact test method*， 2020-09-29 Update
- GB/T 230.1 Metallic materials.Rockwell hardness test.Part 1:Test method*， 2018-05-14 Update
- GB/T 231.1 Metallic materials—Brinell hardness test—Part 1: Test method*， 2018-05-14 Update
- GB/T 2694 Specification of manufacturing for transmission line tower*， 2018-07-13 Update
- GB/T 2828.1 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)*， 2013-02-15 Update
- GB/T 3098.1 Mechanical properties of fasteners.Blots, screws and studs
- GB/T 3098.2 Mechanical properties of fasteners.Nuts*， 2015-12-10 Update
- GB/T 3103.1 Tolerances for fasteners--Bolts,screws,studs and nuts
- GB/T 4340.1 Metallic materials.Vickers hardness test.Part 1:Test method
- GB/T 5267.3 Fasteners.Hot dip galvanized coatings
- GB/T 5276 Fasteners.Bolts, screws, studs and nuts.Symbols and descriptions of dimensions*， 2015-12-10 Update
- GB/T 5277 Fasteners--Clearance holes for bolts and screws
- GB/T 5779.1 Fasteners-Surface discontinuities-Bolts,screws and studs for general requirements
- GB/T 5779.2 Fasteners-Surface discontinuities-Nuts
- GB/T 5779.3 Fasteners-Surface discontinuities-Bolts,screws and studs for special requirements
- GB/T 90.1 Fasteners—Acceptance inspection*， 2023-05-23 Update
- GB/T 90.2 Fasteners--Marking and packaging
- GB/T 90.3 Fasteners.Quality assurance system
DL/T 284-2012 history
- 1970 DL/T 284-2021 Hot-dip galvanized bolts and nuts for transmission line towers and power fittings
- 2012 DL/T 284-2012 Hot-dip galvanized bolts and nuts for tower And hardware of transmission lines
- 2002 DL/T 764.4-2002 Cold forging hot dip galvanizing bolt and nut for tower and hardware of transmission lines
DL/T 284-2012 Hot-dip galvanized bolts and nuts for tower And hardware of transmission lines has been changed from DL/T 764.4-2002 Cold forging hot dip galvanizing bolt and nut for tower and hardware of transmission lines.
