DEP 33.68.30.32-Gen.pdf
《DEP 33.68.30.32-Gen.pdf》由会员分享,可在线阅读,更多相关《DEP 33.68.30.32-Gen.pdf(29页珍藏版)》请在三一文库上搜索。
1、TECHNICAL SPECIFICATION ELECTRICAL TRACE HEATING DEP 33.68.30.32-Gen. October 1993 DESIGN AND ENGINEERING PRACTICE USED BY COMPANIES OF THE ROYAL DUTCH/SHELL GROUP This document is confidential. Neither the whole nor any part of this document may be disclosed to any third party without the prior wri
2、tten consent of Shell Internationale Petroleum Maatschappij B.V., The Hague, the Netherlands. The copyright of this document is vested in Shell Internationale Petroleum Maatschappij B.V., The Hague, the Netherlands. All rights reserved. Neither the whole nor any part of this document may be reproduc
3、ed, stored in any retrieval system or transmitted in any form or by any means (electronic, mechanical, reprographic, recording or otherwise) without the prior written consent of the copyright owner. PDF created with pdfFactory Pro trial version PREFACE DEP (Design and Engineering Practice) publicat
4、ions reflect the views, at the time of publication, of: Shell International Oil Products B.V. (SIOP) and Shell International Exploration and Production B.V. (SIEP) and Shell International Chemicals B.V. (SIC) The Hague, The Netherlands, and other Service Companies. They are based on the experience a
5、cquired during their involvementwith the design, construction, operation and maintenance of processing units and facilities, and they are supplemented with the experience of Group Operating companies. Where appropriate they are based on, or reference is made to, national and international standards
6、and codes of practice. The objective is to set the recommendedstandard for good design and engineeringpractice applied by Group companies operating an oil refinery, gas handling installation, chemical plant, oil and gas production facility, or any other such facility, and thereby to achieve maximum
7、technical and economic benefit from standardization. The information set forth in these publications is provided to users for their consideration and decision to implement. This is of particular importance where DEPs may not cover every requirement or diversity of condition at each locality. The sys
8、tem of DEPs is expected to be sufficiently flexible to allow individual operating companies to adapt the information set forth in DEPs to their own environment and requirements. When Contractors or Manufacturers/Suppliers use DEPs they shall be solely responsible for the quality of work and the atta
9、inment of the required design and engineering standards. In particular, for those requirements not specifically covered, the Principal will expect them to follow those design and engineering practices which will achieve the same level of integrity as reflected in the DEPs. If in doubt, the Contracto
10、r or Manufacturer/Supplier shall, without detracting from his own responsibility, consult the Principal or its technical advisor. The right to use DEPs is granted by SIOP, SIEP or SIC, in most cases under Service Agreements primarily with companies of the Royal Dutch/Shell Group and other companies
11、receiving technical advice and services from SIOP, SIEP or SIC. Consequently, three categories of users of DEPs can be distinguished: 1)Operating companies having a Service Agreement with SIOP, SIEP, SIC or other Service Company. The use of DEPs by these Operating companies is subject in all respect
12、s to the terms and conditions of the relevant Service Agreement. 2)Other parties who are authorized to use DEPs subject to appropriate contractual arrangements. 3)Contractors/subcontractors and Manufacturers/Suppliers under a contract with users referred to under 1) or 2) which requires that tenders
13、 for projects, materials supplied or - generally - work performed on behalf of the said users comply with the relevant standards. Subject to any particular terms and conditions as may be set forth in specific agreements with users, SIOP, SIEP and SIC disclaim any liability of whatsoever nature for a
14、ny damage (including injury or death) suffered by any company or person whomsoever as a result of or in connection with the use, application or implementation of any DEP, combination of DEPs or any part thereof. The benefit of this disclaimer shall inure in all respects to SIOP, SIEP, SIC and/or any
15、 company affiliated to these companies that may issue DEPs or require the use of DEPs. Without prejudice to any specific terms in respect of confidentiality under relevant contractual arrangements, DEPs shall not, without the prior written consent of SIOP and SIEP, be disclosed by users to any compa
16、ny or person whomsoever and the DEPs shall be used exclusively for the purpose for which they have been provided to the user. They shall be returned after use, including any copies which shall only be made by users with the express prior written consent of SIOP and SIEP. The copyright of DEPs vests
17、in SIOP and SIEP. Users shall arrange for DEPs to be held in safe custody and SIOP or SIEP may at any time require information satisfactory to them in order to ascertain how users implement this requirement. All administrative queries should be directed to the DEP Administrator in SIOP. NOTE: In add
18、ition to DEP publications there are Standard Specifications and Draft DEPs for Development (DDDs). DDDs generally introduce new procedures or techniques that will probably need updating as further experience develops during their use. The above requirements for distribution and use of DEPs are also
19、applicable to Standard Specifications and DDDs. Standard Specifications and DDDs will gradually be replaced by DEPs. DEP 33.68.30.32-Gen. October 1993 Page 2 PDF created with pdfFactory Pro trial version TABLE OF CONTENTS 1.INTRODUCTION .5 1.1SCOPE 5 1.2DISTRIBUTION, APPLICABILITY AND REGULATORY CO
20、NSIDERATIONS 5 1.3DEFINITIONS 5 1.4CROSS-REFERENCES 7 2.GENERAL DESIGN REQUIREMENTS.8 2.1CONTRACTOR RESPONSIBILITIES 8 2.2SAFETY.8 2.3SITE CONDITIONS .8 2.4DEGREE OF PROTECTION .9 2.5ELECTRICAL SUPPLY SYSTEM9 2.6HEATING-UP REQUIREMENT .9 2.7PERFORMANCE REQUIREMENTS .9 2.8SPARE OR OVER-CAPACITY 9 2.9
21、OPERATION AND MAINTENANCE 9 3.HEATER SELECTION.10 3.1GENERAL10 3.2SELF-REGULATING/SELF-LIMITING HEATERS.10 3.3CONSTANT WATTAGE PARALLEL HEATERS .10 3.4MINERAL INSULATED HEATERS11 3.5SKIN ELECTRIC CURRENT TRACING 11 4.TEMPERATURE CONTROL.12 4.1GENERAL12 4.2TEMPERATURE CONTROL FOR ENERGY SAVING 12 4.3
22、TEMPERATURE CONTROL RESULTING FROM PRODUCT REQUIREMENTS 12 4.4TEMPERATURE LIMITATION FOR SAFETY REASON . 12 4.5TEMPERATURE LIMITATION FOR PROTECTION AGAINST OVERHEATING 13 5.POWER SUPPLY AND DISTRIBUTION .14 5.1DISTRIBUTION PANEL.14 5.2CIRCUIT PROTECTION14 5.3FIELD DISTRIBUTION 14 6.INSTALLATION 15
23、6.1HEATER DISTRIBUTION 15 6.2LOCAL SWITCHES .15 6.3LOCAL THERMOSTATS.15 6.4CONNECTION BOXES .15 6.5HEATER INSTALLATION 16 6.6IDENTIFICATION 17 7.TESTING AND COMMISSIONING 18 7.1FACTORY TESTING .18 7.2COMMISSIONING .18 8.DOCUMENTS19 8.1GENERAL19 8.2DOCUMENTS TO BE SUBMITTED 19 8.3DATA BASE.19 9.REFER
24、ENCES 20 10.APPENDICES .22 DEP 33.68.30.32-Gen. October 1993 Page 3 PDF created with pdfFactory Pro trial version APPENDICES APPENDIX 1SUMMARY OF TESTS AND REQUIREMENTS FOR HEAT TRACING CABLES AND PADS 23 APPENDIX 2TYPICAL POWER SUPPLY AND DISTRIBUTION DIAGRAM. 24 APPENDIX 3TYPICAL EXAMPLE OF HEATE
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- DEP 33.68.30.32-Gen 33.68 30.32 Gen
链接地址:https://www.31doc.com/p-3754535.html