UL-639-BULLETINS-2007.pdf
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1、FOR INTERNAL UL OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION Subject 639 July 6, 2007 SUMMARY OF TOPICS The following requirements are being proposed: 1. Proposed Eighth Edition of the Standard for Intrusion-Detection Units, UL 639 as an American National Standard. The following revisions are inclu
2、ded: (a) standard references are proposed to be updated, (b) the wordnaturalis proposed to be deleted from the termnatural gray, (c) the textNo.when referring to wire sizes is proposed to be deleted and (d) the scope paragraph addressing investigation of new and different features of products is pro
3、posed to be deleted. COMMENTS DUE: August 20, 2007 STP BALLOTS DUE: August 6, 2007 For your convenience in review, proposed additions to existing requirements are shown underlined and proposed deletions are shown lined-out. 1. Proposed Eighth Edition of the Standard for Intrusion-Detection Units, UL
4、 639, as an American National Standard. The following revisions are included: (a) standard references are proposed to be updated, (b) the word natural is proposed to be deleted from the term natural gray, (c) the text No. when referring to wire sizes is proposed to be deleted and (d) the scope parag
5、raph addressing investigation of new and different features of products is proposed to be deleted. RATIONALE Proposal submitted by: Louis Chavez, Underwriters Laboratories Inc. UL proposes the Eighth Edition of the Standard for Intrusion-Detection Units, UL 639, as an American National Standard. The
6、 following revisions are included: (a) Standard references are proposed to be updated UL proposes to update some of the references that are contained in UL 639 to correct standard titles and to replace standards which have been withdrawn. (b) The word natural is proposed to be deleted from the term
7、natural gray Natural gray is an undefi ned term that is no longer used in the National Electrical Code. Therefore, UL proposes that the word natural be deleted from the term natural gray. This proposal is consistent with Article 200 of the National Electrical Code, NFPA 70. (c) The text No. when ref
8、erring to wire sizes is proposed to be deleted The No. is no longer used to describe wire sizes. This proposed revision correlates with the National Electrical Code. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not
9、 for Resale, 07/15/2007 23:08:57 MDTNo reproduction or networking permitted without license from IHS -,-,- FOR INTERNAL UL OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION (d) The scope paragraph addressing investigation of new and different features of products is proposed to be deleted The requiremen
10、ts in UL Standards for Safety are intended to provide the general safety requirements needed in order to examine and test a product to determine whether the design provides acceptable reduction of the risks expected in connection with the products use. UL requirements are not intended to address iss
11、ues specifi c to the certifi cation of a product. UL determined that paragraph 1.4 addressed issues specifi c to the certifi cation of a product. Therefore, UL is proposing to delete this paragraph. The certifi cation information addressed in paragraph 1.4 has been relocated to the Foreword of the s
12、tandard. JULY 6, 2007SUBJECT 639-2- Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 07/15/2007 23:08:57 MDTNo reproduction or networking permitted without license from IHS -,-,- FOR INTERNAL UL OR CSDS
13、 USE ONLY NOT FOR OUTSIDE DISTRIBUTION CONTENTS INTRODUCTION 1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 2 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 2.1 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 2.2 Units of measurement . . . . . . . . . . . . . . .
15、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 2.3 Undated references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 2.4 Terminology . . . . . . . . . . . . . . . . . . . . . . . . .
16、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 3 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 4 Instructions and Drawings . . . . . . . . . .
17、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 CONSTRUCTION ALL UNITS ASSEMBLY 5 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
18、0 6 Test Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 7 Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19、. . . . . . . . . . . .11 7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 7.2 Cast metal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20、 . . . . . . . . . . . . . . .17 7.3 Sheet metal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 7.4 Nonmetallic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21、 . . . . . . . . . . . . . . . .18 7.5 Doors and covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 7.6 Screens and expanded metal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、 . . . . . .21 8 Electric Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 9 Corrosion Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23、 . . . . . . . . . . . . . .22 FIELD WIRING 10 Field Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 10.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24、 . . . . . . . . . . . . . . . . . . . . . .23 10.2 Field wiring compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 10.3 Terminals (general application) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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