HOME   Cart(0)   Quotation   About-Us Tax PDFs Standard-List Powered by Google www.ChineseStandard.net Database: 189759 (2 Feb 2025)

GB/T 11348.5-2008 English PDF (GB/T 11348.5-2002)

GB/T 11348.5-2008_English: PDF (GB/T11348.5-2008)
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 11348.5-2008English250 Add to Cart 0--9 seconds. Auto-delivery Mechanical vibration evaluation of machine vibration by measurements on rotating shafts -- Part 5: Machine sets in hydraulic power generating and pumping plants Valid GB/T 11348.5-2008
GB/T 11348.5-2002English519 Add to Cart 3 days [Need to translate] Mechanical vibration of non-reciprocating machines -- Measurements on rotating shafts and evaluation criteria -- Part 5: Machine sets in hydraulic power generating and pumping plants Obsolete GB/T 11348.5-2002


BASIC DATA
Standard ID GB/T 11348.5-2008 (GB/T11348.5-2008)
Description (Translated English) Mechanical vibration evaluation of machine vibration by measurements on rotating shafts. Part 5: Machine sets in hydraulic power generating and pumping plants
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J04
Classification of International Standard 17.160
Word Count Estimation 18,173
Date of Issue 2008-09-27
Date of Implementation 2009-05-01
Older Standard (superseded by this standard) GB/T 11348.5-2002
Quoted Standard GB/T 11348.1; GB/T 17189; GB/T 21487.1
Adopted Standard ISO 7919-5-2005, IDT
Drafting Organization Harbin Electric Institute
Administrative Organization National Mechanical vibration, shock and condition monitoring Standardization Technical Committee
Regulation (derived from) National Standard Approval Announcement 2008 No.16 (Total No.129)
Proposing organization Shock and condition monitoring of Standardization Technical Committee; National mechanical vibration
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This standard applies to hydroelectric and pumping plants-assessment or near the bearings in the bearing shaft vibration measurements. According to the steady-state operating conditions of vibration amplitude changes and these values ??may appear to make these guidelines. Note 1: The value is not specified as the sole basis for evaluation of vibration, because the evaluation of the state of the machine vibration is usually considered shaft vibration and bearing vibration two aspects (see GB/T 11348. 1 and GB/T 6075. 1). This section applies to hydroelectric and pumping plants, the rated speed is 60r/min ~ 1800r/min, bush type or drum pad bearing block, main engine power greater than or equal to 1MW.

BASIC DATA
Standard ID GB/T 11348.5-2002 (GB/T11348.5-2002)
Description (Translated English) Mechanical vibration of non-reciprocating machines--Measurements on rotating shafts and evaluation criteria--Part 5: Machine sets in hydraulic power generating and pumping plants
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J04
Classification of International Standard 17.16
Word Count Estimation 13,182
Date of Issue 2002/5/20
Date of Implementation 2002/12/1
Adopted Standard ISO 7919-5-1997, IDT
Regulation (derived from) Announcement of Newly Approved National Standards No. 16 of 2008 (No. 129 overall)
Proposing organization China Machinery Industry Federation
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China


GB/T 11348.5-2008 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 17.160 J 04 GB/T 11348.5-2008 / ISO 7919-5:2005 Replacing GB/T 11348.5-2002 Mechanical Vibration – Evaluation of Machine Vibration by Measurements on Rotating Shafts – Part 5: Machine Sets in Hydraulic Power Generating and Pumping Plants (ISO 7919-5:2005, IDT) ISSUED ON: SEPTEMBER 27, 2008 IMPLEMENTED ON: MAY 01, 2009 Issued by: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Table of Contents Foreword ... 3 1 Scope ... 5 2 Normative References ... 6 3 Measurement Procedures ... 7 4 Evaluation Criteria ... 8 Annex A (Normative) Evaluation Criteria for Relative Shaft Vibration of Hydraulic Turbine Sets under Specified Operating Conditions ... 11 Annex B (Informative) Special Features of Shaft Vibration of Hydraulic Machine Sets ... 17 Annex C (Informative) Analysis Procedure and Applied Regression Technique ... 20 Annex D (Informative) Objectives of this Edition of GB/T 11348.5 ... 22 Bibliography ... 24 Foreword GB/T 11348 Mechanical Vibration – Measurements of Machine Vibration by Measurements on Rotating Shafts can be divided into the following 5 parts: --- Part 1: General Guidelines; --- Part 2: Large Land-Based Steam Turbine Generators in Excess of 50MW with Normal Operating Speeds of 1500r/min, 1800r/min, 3000r/min and 3600r/min --- Part 3: Coupled Industrial Machines; --- Part 4: Gas Turbine Sets; --- Part 5: Machine Sets in Hydraulic Power Generating and Pumping Plants. This Part is Part 5 of GB/T 11348. This Part of GB/T 11348 equivalently adopts the international standard ISO 7919- 5:2005 Mechanical Vibration – Evaluation of Machine Vibration by Measurements on Rotating Shafts – Part 5: Machine Sets in Hydraulic Power Generating and Pumping Plants (English Version). This Part equivalently adopts ISO 7919-5:2005. For the ease of use, compared with ISO 7919-5:2005, this Part made the following editorial modifications: --- Change “this international standard” into “this Part”; --- Delete the foreword of the international standard; --- Use the decimal point symbol “.’ to replace the decimal point symbol “,”; --- Change the name of the original standard; --- As for other international standards cited in ISO7919-5:2005, there are those that are equivalently adopted by China, then the corresponding international standards are replaced by Chinese standards; but directly cited international standards that have not been equivalently adopted as Chinese standards. This Part revised GB/T 11348.5-2002 Mechanical Vibration of Non-Reciprocating Machines - Measurements on Rotating Shafts and Evaluation Criteria - Part 5: Machine Sets in Hydraulic Power Generating and Pumping Plants. Compared with GB/T 11348.5-2002, this Part has the major technical changes as follows: --- Modify the evaluation criteria; use a wider division, divide the entire evaluation Mechanical Vibration – Evaluation of Machine Vibration by Measurements on Rotating Shafts – Part 5: Machine Sets in Hydraulic Power Generating and Pumping Plants 1 Scope This Part of GB/T 11348 gives guidelines for applying evaluation criteria for shaft vibration measured at, or close to, the bearings of machines or machine sets in hydraulic power generating and pumping plants under normal operating conditions. These guidelines are presented in terms of both steady-state running vibration and any amplitude changes that can occur in these steady vibration values. NOTE 1: The numerical values specified are not intended to serve as the only basis for vibration evaluation since, in general, the vibratory condition of a machine is assessed by consideration of both the shaft vibration and the associated structural vibration (see GB/T 11348.1 and GB/T 6075.1). This Part is applicable to machines or machine sets in hydraulic power generating and pumping plants where the hydraulic machines have speeds from 60 r/min to 1 800 r/min, shell- or shoe-type sleeve bearings, and main engine power of at least 1 MW. The position of the shaft line can be vertical, horizontal or at an arbitrary angle between these two directions. Machine sets covered by this Part include a combination of a) hydraulic turbines and generators, b) pumps and electrical machines operating as motors, c) pump-turbines and motor-generators, and d) hydraulic turbines, pumps and motor-generators (classic pump-storage machine sets). including auxiliary equipment (e.g.: starting turbines or exciters lying in the shaft line). This Part is also applicable to turbines or pumps connected to generators or electrical motors via gears and/or radially flexible couplings. NOTE 2: Electrical machines with speeds between 1 000 r/min and 1 800 r/min are evaluated according to the criteria specified in GB/T 11348.3. This Part is not applicable to: a) pumps in thermal power plants or industrial installations (for these machines, see GB/T 11348.3), b) hydraulic machines or machine sets having rolling element bearings, or c) hydraulic machines with water-lubricated bearings. As specified in GB/T 11348.1, shaft vibration of machines or machine sets in hydraulic power generating and pumping plants can be determined with regard to the following tasks: a) task A: changes in vibrational behaviour; b) task B: excessive kinetic load; c) task C: the monitoring of radial clearance. 2 Normative References The provisions in following documents become the provisions of this Part through reference in this Part of GB/T 11348. For dated references, the subsequent amendments (excluding corrigendum) or revisions do not apply to this Part, however, parties who reach an agreement based on this Part are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. GB/T 11348.1 Mechanical Vibration of Non-Reciprocating Machines - Measurements on Rotating Shafts and Evaluation Criteria - Part 1: General Guidelines (GB/T 11348.1-1999, idt ISO 7919-1:1996 Mechanical Vibration – Evaluation of Machine Vibration by Measurements on Non-Rotating Parts – Part 1: General Guidelines) GB/T 17189 Code for Field Measurement of Vibrations and Pulsation in Hydraulic Machines (Turbines Storage Pumps and Pump-Turbines) (GB/T 17189-2007, IEC 60994:1991) GB/T 21487.1 Rotating Shaft Vibration Measuring Systems - Part 1: Relative and Absolute Sensing of Radial Vibration (GB/T 21487.1-2008, ISO 10817-1:1998, IDT) ......