UL 515-2015 UL Standard for Saftey Electrical Resistance Trace Heating for Commercial Applications (Second Edition)《商业和工业设施用电阻加热故障探测(第2版)》.pdf
《UL 515-2015 UL Standard for Saftey Electrical Resistance Trace Heating for Commercial Applications (Second Edition)《商业和工业设施用电阻加热故障探测(第2版)》.pdf》由会员分享,可在线阅读,更多相关《UL 515-2015 UL Standard for Saftey Electrical Resistance Trace Heating for Commercial Applications (Second Edition)《商业和工业设施用电阻加热故障探测(第2版)》.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 515 Electrical Resistance Trace Heating for Commercial ApplicationsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MA
2、TERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electrical Resistance Trace Heating for Commercial Applications, UL 515 Second Edition, Dated July 17, 2015 Summary of Topics This new edition of UL 515 are being issued to transition
3、 it to electrical resistance trace heating for commercial applications only. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated November 21, 2014 and March 23, 2015. All rights reserved. No part of this publication may be reproduced, stored in a r
4、etrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of me
5、rchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an a
6、uthorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, a
7、nd hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. JULY 17, 2015 UL 515 tr1UL COPYRIG
8、HTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 17, 2015 UL 515 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 17, 2015 1 UL 515 Standard for Electrical Resi
9、stance Trace Heating for Commercial Applications The rst edition was titled the Standard for Electrical Resistance Heat Tracing for Commercial and Industrial Applications. First Edition May, 2001 Second Edition July 17, 2015 This UL Standard for Safety consists of the Second Edition. Comments or pro
10、posals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy
11、of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DI
12、STRIBUTION WITHOUT PERMISSION FROM UL JULY 17, 2015 UL 515 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 Glossary .5 3 Components 6 4 Units of Measurement .6 5 Undated References 6 6
13、 Referenced Publications .6 CONSTRUCTION 7 Conductor Insulating Materials 7 8 Grounding Component .7 9 Supply Connections .8 9.1 Cord-and-plug connected 8 9.2 Permanently connected .8 10 Accessory Equipment 8 PERFORMANCE 11 General .8 12 Temperature Test 9 MARKINGS 13 General 10 INSTRUCTIONS 14 Inst
14、allation Instructions 10 JULY 17, 2015 UL 515 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover electrical resistance trace heating for commercial applications as applied to piping, vessels, t
15、raced tube bundles, and mechanical equipment. Trace heating includes heating panels and associated parts. This equipment is intended for installation in ordinary locations in accordance with the following installation guidelines: a) National Electrical Code, ANSI/NFPA 70, Article 427, and b) IEEE St
16、andard for the Testing, Design, Installation, and Maintenance of Electrical Resistance Trace Heating for Commercial Applications, IEEE 515.1. 1.2 These requirements also cover commercial applications of electrical resistance trace heating for deicing roofs, gutters, and pavement. This equipment is i
17、ntended for installation in ordinary locations in accordance with the following installation guidelines: a) National Electrical Code, ANSI/NFPA 70, Article 426; and b) IEEE Standard for the Testing, Design, Installation, and Maintenance of Electrical Resistance Trace Heating for Commercial Applicati
18、ons, IEEE 515.1. 1.3 Trace heating covered by this Standard is intended for applications where it is exposed to weather, unless specic markings and instructions limit the applications. 1.4 Trace heating may be installed on metal or rigid plastic pipes. Unless specic recommendations are made for the
19、plastic pipe material to be heated, plastic pipes are considered to have a maximum long-term thermal exposure limit of 50C (122F). 1.5 Other related equipment standards: a) For Embedded Floor Warming Applications, refer to the Standard for Electric Space Heating Cables, UL 1673. b) For Mobile Home P
20、ipe Heating Cables, refer to the Outline of Investigation, UL 1462. c) For Residential Pipe Heating Cables, refer to the Outline of Investigation, UL 2049. d) For Roof and Gutter De-Icing Cable Units, refer to the Outline of Investigation, UL 1588. 1.6 This Standard does not cover electrical resista
21、nce trace heating for industrial applications such as chemical plants, pipelines, reneries, and other similar locations where the trace heating is expected to be installed by qualied personnel. JULY 17, 2015 UL 515 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITH
22、OUT PERMISSION FROM UL 2 Glossary 2.1 For the purpose of this Standard the following denitions apply. 2.2 COLD LEAD An electrically insulated conductor used to connect a heating conductor to the branch-circuit conductors and designed so as not to produce appreciable heat. 2.3 COMMERCIAL APPLICATIONS
23、 Applications such as hotels, warehouses, office buildings, and other non-residential locations where the electrical resistance trace heating is expected to be installed by qualied personnel. Examples of commercial applications of electrical resistance trace heating are to prevent freezing, or to ma
24、intain temperature in water piping. 2.4 ELECTRICAL RESISTANCE TRACE HEATING The utilization of electric trace heaters, other electric heating devices, and support components that are externally applied and used to maintain or raise the temperature of uids/materials in piping and associated equipment
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