API 5LD是針對長距離輸送管線系統(tǒng)的一個(gè)標(biāo)準(zhǔn)，API是美國石油協(xié)會的簡稱，而5LD指的是第五版的線路管道規(guī)范，這個(gè)標(biāo)準(zhǔn)為油氣行業(yè)的管線系統(tǒng)設(shè)計(jì)、建造、運(yùn)營和維護(hù)提供了指導(dǎo)和要求。
由于API 5LD是一個(gè)專業(yè)性很強(qiáng)的文檔，并且通常是以英文發(fā)布的，因此沒有提供“api 5ld 英文版_語言版本”的具體信息，不過，我可以為你概述API 5LD的內(nèi)容結(jié)構(gòu)：
API 5LD Pipeline System Line Pipe Standard
1. General Provisions
Scope
Field Documentation and Records
Responsibility of the Owner
Training
Quality Assurance
2. Design Considerations
Design Basis
Loads
Stress Analysis
Strain Based Limits
Deflection Control
Supports and Expansion Joints
3. Materials
Steel Pipe
Welding Consumables
Coatings and Linings
4. Fabrication, Inspection, and Testing
Fabrication
Examination
Testing
Nondestructive Examination Personnel Qualification
5. Pipeline Installation
Trenches
Bends
Lowering Pipe into the Trench
Backfill and Burial
River Crossings
Laying on or in Mudline
Hydrostatic Testing
6. Commissioning and Decommissioning
Commissioning
Decommissioning
7. Operation and Maintenance
Operating Conditions
Maintenance
Patching
Inservice Inspection
Cathodic Protection
8. Appendices
A. Glossary of Terms Used in This Standard
B. Recommended Practices for FitnessforService of API 5L Pipe
C. Paragraphs Revised or Added Since Previous Publication
D. Metric/English Units Conversion Tables
9. Indexes
Identification Index
Subject Index
請注意，上述內(nèi)容是根據(jù)API 5LD的結(jié)構(gòu)大致概括的，并不完整，如果你需要更詳細(xì)的信息或具體的章節(jié)內(nèi)容，請直接查閱最新版的API 5LD標(biāo)準(zhǔn)文檔，通常這些文檔需要購買才能獲得，你可以從美國石油協(xié)會（API）或其授權(quán)代表處獲取。