Document Details |
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| Name of Department/Committee : | MED 28 |
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| Document Number : | MED 28 ( 27121) |
| IS Number (Technical Department) : | IS/ISO 20816 : Part 2: 2017 |
| Document Title [English] : | Mechanical Vibration — Measurement and Evaluation of Machine Vibration Part 2 Land-Based Gas Turbines, Steam Turbines and Generators in Excess of 40 MW, with Fluid-Film Bearings and Rated Speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min and 3 600 r/min ( First Revision ) Amendment - 1 |
| Document Title [Hindi] : | यांत्रिकीय कम्पन — यांत्रिक कम्पन का मापन एवं मूल्यांकन भाग 2 : 40 मै.वॉ से अधिक, फ्ल्यूड — फिल्म बेयरिंग एवं 1500 च./मि, 3000 च./मि एवं टरबाइन, स्टेम टरबाइन एवं जेनरेटर |
| Document Type : | Amendment |
| Amendment No : | 1 |
| Language : | English |
| Priority : | 3 |
| ICS Code : | |
| Date of Project Approval : | 12-09-2024 |
| Standards to be Superseded : | |
| Sl.No. | Synosis Points | |
| 1 | This document is applicable to land-based gas turbines, steam turbines and generators (whether coupled with gas and/or steam turbines) with power outputs greater than 40 MW, fluid-film bearings and rated speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min or 3 600 r/min. The criteria provided in this document can be applied to the vibration of the gas turbine, steam turbine and generator (including synchronizing clutches). This document establishes provisions for evaluating the severity of the following in-situ, broad-band vibration: a) structural vibration at all main bearing housings or pedestals measured radial (i.e. transverse) to the shaft axis; b) structural vibration at thrust bearing housings measured in the axial direction; c) vibration of rotating shafts radial (i.e. transverse) to the shaft axis at, or close to, the main bearings. These are in terms of the following: — vibration under normal steady-state operating conditions; — vibration during other (non-steady-state) co | |
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| Sl. No. |
Stage | Date of Occurence | Remarks | Circulated to | Files |
| 1 | Generation of Document Number | 12-09-2024 | ------- | ||
| 2 | P-Draft Waived | 18-12-2024 | The Committee approved for wide circulation of the draft amendment for 30 days during the 29th TC Meeting of MED28. | ------- | |
| 3 | WC Draft | 18-12-2024 | Duration : 30 Days Submitted for HOD approval Remarks : The Committee approved for wide circulation of the draft amendment for 30 days during the 29th TC Meeting of MED28 |
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| 4 | WC Draft | 19-12-2024 | WC approved by HOD |
MEDC | ------- |