1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL 1059Terminal BlocksUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDI
2、STRIBUTION WITHOUT PERMISSION FROM ULUL Standard for Safety for Terminal Blocks, UL 1059Fourth Edition, Dated December 27, 2001Summary of TopicsThis revision of ANSI/UL 1059 includes the addition of an exception to 9.1 for performingMercurous Nitrate or Moist Ammonia Stress Corrosion tests.Text that
3、 has been changed in any manner or impacted by ULs electronic publishing system is markedwith a vertical line in the margin. Changes in requirements are marked with a vertical line in the marginand are followed by an effective date note indicating the date of publication or the date on which thechan
4、ged requirement becomes effective.The revised requirements are substantially in accordance with Proposal(s) on this subject dated August 5,2011.All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, ortransmitted in any form by any means, electronic, mechan
5、ical photocopying, recording, or otherwisewithout prior permission of UL.UL provides this Standard as is without warranty of any kind, either expressed or implied, including butnot limited to, the implied warranties of merchantability or fitness for any purpose.In no event will UL be liable for any
6、special, incidental, consequential, indirect or similar damages,including loss of profits, lost savings, loss of data, or any other damages arising out of the use of or theinability to use this Standard, even if UL or an authorized UL representative has been advised of thepossibility of such damage.
7、 In no event shall ULs liability for any damage ever exceed the price paid forthis Standard, regardless of the form of the claim.Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold ULharmless from and against any loss, expense, liability, damage, claim,
8、or judgment (including reasonableattorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, figures,and/or othe
9、r elements of the Standard having future effective dates as indicated in the note following theaffected item. The prior text for requirements that have been revised and that have a future effective dateare located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice.The following
10、 table lists the future effective dates with the corresponding reference.OCTOBER 14, 2011 UL 1059 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULFuture Effective Date ReferenceJune 18, 2013 Paragraph(s) 21.1, SA1.1,SA2.7, SA2.7.1,SA2.7.2,S
11、A2.7.3,SA2.7.4, SA2.8, SA3.1,SA5.4, and Table SA4.1.OCTOBER 14, 2011 UL 1059tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULDECEMBER 27, 2001(Title Page Reprinted: October 14, 2011)1UL 1059Standard for Terminal BlocksFirst Edition October,
12、1975Second Edition August, 1988Third Edition February, 1993Fourth EditionDecember 27, 2001This ANSI/UL Standard for Safety consists of the Fourth Edition includingrevisions through October 14, 2011.The most recent designation of ANSI/UL 1059 as an American National Standard(ANSI) occurred on October
13、 14, 2011. ANSI approval for a standard does notinclude the Cover Page, Transmittal Pages, Title Page, or effective dateinformation.Comments or proposals for revisions on any part of the Standard may besubmitted to UL at any time. Proposals should be submitted via a ProposalRequest in ULs On-Line Co
14、llaborative Standards Development System (CSDS)at http:/.ULs Standards for Safety are copyrighted by UL. Neither a printed nor electroniccopy of a Standard should be altered in any way. All of ULs Standards and allcopyrights, ownerships, and rights regarding those Standards shall remain thesole and
15、exclusive property of UL.COPYRIGHT 2011 UNDERWRITERS LABORATORIES INC.UL/ANSI 1059-2011UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULDECEMBER 22, 2005TERMINAL BLOCKS - UL 10592No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU
16、RTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .92 Glossary .93 Units of Measurement 124 Undated References .125 Components 12PART I TERMINAL BLOCKS RATED 600 VOLTS AND LESSCONSTRUCTION6 Materials 126.1 Current-carrying parts 126.2 Insulation .137 Wiring Term
17、inals .148 Spacings 16PERFORMANCE9 General .16B10 Selection and Preparation of Samples for Temperature and Dielectric Voltage-WithstandTests 16B11 Temperature Test .1812 Dielectric Voltage-Withstand Test .2013 Solid-Wire Tightening Test 20B14 Tab Pull Test .2215 Verification of the Performance of Te
18、rminal Assemblies .2216 Mold Stress Relief Test 23RATING17 Details .23MARKING18 General 24PART II TERMINAL BLOCKS RATED 601 1500 VOLTSINTRODUCTION19 Details .24JUNE 18, 2010 TERMINAL BLOCKS - UL 1059 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION F
19、ROM ULCONSTRUCTION20 General 24A21 Insulating Material 2522 Spacings 25PERFORMANCE23 General 2524 Dielectric Voltage-Withstand Test .25RATING25 Details .25MARKING26 General 26PART III SPRING FORCE CONNECTIONSCONSTRUCTION27 General 26PERFORMANCE28 General 2629 Secureness and Pullout Tests 2730 Condit
20、ioning 2831 Temperature Test .2832 Dielectric Voltage-Withstand Test .2833 Heat Cycling Test .28RATING34 Details .29MARKING35 General 29PART IV INSULATION PIERCING OR DISPLACEMENT CONNECTIONSCONSTRUCTION36 General 29DECEMBER 22, 2005TERMINAL BLOCKS - UL 10594UL COPYRIGHTED MATERIAL NOT AUTHORIZED FO
21、R FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPERFORMANCE37 General 2938 Secureness and Pullout Tests 3039 Conditioning 3140 Temperature Test .3141 Dielectric Voltage-Withstand Test .3142 Heat Cycling Test .31DECEMBER 22, 2005 TERMINAL BLOCKS - UL 1059 4AUL COPYRIGHTED MATERIAL NOT
22、 AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULDECEMBER 22, 2005TERMINAL BLOCKS - UL 10594BNo Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULRATING43 Details .32MARKING44 General 32PART V PROTEC
23、TIVE CONDUCTOR TERMINAL BLOCKS (PCTB)CONSTRUCTION45 General 3246 Connection of Support .3347 Spacings 3348 Identification .3349 Protective Conductor Mounting Rails 33PERFORMANCE50 Short Time Current Sequence (Commercial and Industrial Applications) .3350.1 General .3350.2 Voltage drop test .3450.3 C
24、urrent test 3450.4 Voltage drop test repeated 3651 Short Time Current Sequence (Service Applications) 3751.1 General .3751.2 Current test 3751.3 Continuity test .37RATING52 Details .38MARKING53 General 38SUPPLEMENT SA - SHORT CIRCUIT CURRENT RATINGS FOR TERMINAL BLOCKS GREATERTHAN 10 kASA1 Scope SA1
25、SA2 Short-Circuit Current Evaluation .SA1SA3 Evaluation of Test Results SA3SA4 Ratings .SA4SA5 Markings .SA4JUNE 18, 2010 TERMINAL BLOCKS - UL 1059 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAPPENDIX AStandards for ComponentsA1JUNE 18, 2
26、010TERMINAL BLOCKS - UL 10596UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover assemblies of wiring terminals and supporting blocks intended to providefor the connection of wiring. Compliance with
27、these requirements does not assure that the terminal blockis suitable for use as a component of an end product.1.2 These requirements cover terminal blocks rated 1500 volts or less.1.3 These requirements also cover protective conductor terminal blocks (PCTB) used to make theelectrical and mechanical
28、 connection between conductors or between conductors and a fixing supportsuch as a mounting rail. A PCTB is not required to be insulated.1.4 These terminal blocks are intended to permanently support and insulate wire terminations and jointsfrom each other, and from the surface on which the terminal
29、block is mounted, where the absence of suchsupport or insulation presents a risk of fire, electric shock, or injury to persons.1.5 The acceptability of a terminal block in any particular application depends upon its suitability forcontinued use under the conditions that prevail in actual service. Ac
30、cordingly, for a particular applicationa terminal block may be affected by the requirements for the equipment in which it is used, and it may benecessary to additionally evaluate that terminal block for features or performance characteristics that arenot specified in this standard.1.6 Terminal block
31、s employing types of connecting means not covered by this standard such as those inwhich conductors are secured to the terminals by means of a special tool can be evaluated under thisstandard but may require separate investigation.1.7 These requirements do not cover field installed power distributio
32、n blocks intended to distribute powerin a building to separate units such as apartments, separate heaters, and air conditioning units. Powerdistribution blocks are investigated to Subject 1953, Outline of Investigation for Power Distribution Blocks.2 Glossary2.1 For the purpose of this standard the
33、following definitions apply.2.2 FACTORY WIRING The connection of a wire in the end application under controlled conditions,usually at a manufacturers location.2.2 revised September 13, 20042.3 FIELD WIRING The connection of a wire, which is made in the field and that is subjected to therequirements
34、for a terminal for field wiring as specified in this standard and the National Electrical Code,NFPA 70.2.3 revised September 13, 20042.4 INSULATION PIERCING OR DISPLACEMENT CONNECTOR A connector for the connectionand possible disconnection of one conductor or the interconnection of two or more condu
35、ctors, theconnection being made by piercing, boring through, cutting through, removing, displacing, or makingineffective in some other manner the insulation of the conductor or conductors without previousstripping.SEPTEMBER 13, 2004 TERMINAL BLOCKS - UL 1059 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED F
36、OR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2.5 POST CONNECTOR A connector utilizing a post (solderless wire wrap and similar for example)onto which one or more conductors are secured by means of a tool.2.6 PREPARED CONDUCTOR A conductor, the strands of which are soldered or tin
37、ned; or the endof which is fitted with a cable lug, eyelet, quick-connect, ring terminal, spade terminal, or similarcomponent, prior to insertion into the terminal.2.7 PROTECTIVE CONDUCTOR TERMINAL BLOCK (PCTB) A device with one or more clampingunits for connecting or joining protective conductors (
38、Protective Earthing (PE) conductors) or connectingsuch conductors to the support for the clamping units. The clamping units can be secured with screw-or screwless-type fixing means. Examples of supports are mounting rails, sheet metal cut-outs, ormounting plates. A PCTB is either uninsulated, non-is
39、olated, or isolated See (a) and (b). Operatinginsulation is not necessary as a PCTB is intended to be at ground potential.a) ISOLATED PROTECTIVE CONDUCTOR TERMINAL BLOCK A protective conductorterminal block that provides insulation from live parts of other terminal blocks, adjacent poles ofthe same
40、terminal block, or other devices and isolation from the support. It does not haveprovisions for path 2-2 of Figure 50.1. It uses path 1-1 only.b) NON-ISOLATED PROTECTIVE CONDUCTOR TERMINAL BLOCK A protective conductorterminal block that provides insulation from live parts of other terminal blocks, a
41、djacent poles ofthe same terminal block, or other devices, but does not provide isolation from the support itself.It is mechanically and electrically attached to its support, path 2-2 in Figure 50.1. It may or maynot have path 1-1.2.8 TERMINAL CONNECTOR A device that establishes the connection betwe
42、en two or moreconductors or between one or more conductors and a terminal by means of mechanical pressure.2.8 revised September 13, 20042.9 SEPARABLE TYPE CONNECTORS Connectors consisting of separable, mating members thatcan be readily engaged or disengaged without the use of tools.a) Quick Connect
43、Type Typical mating components as shown in Figure 2.1.b) Other Types Other than quick connect type. Acceptability to be determined by separateinvestigation.Thisisgeneratedtextforfigtxt.SEPTEMBER 13, 2004TERMINAL BLOCKS - UL 105910UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDIST
44、RIBUTION WITHOUT PERMISSION FROM UL2.10 SOLDER CONNECTORS A connector in which the conductor is connected to the current-carrying member by soldering.2.11 SPRING-FORCE CONNECTOR A connector utilizing a spring action for retaining a conductor.2.12 STUD AND NUT TYPE CONNECTOR A connector in which:a) A
45、n unprepared conductor is looped around a stud and retained by a nut; orb) A prepared conductor is assembled to a stud and retained by a nut.2.13 TERMINAL BLOCK A terminal block is a rigidly mounted device that is composed of aninsulated base with barriers having one or more electrically conductive
46、members. Each electricallyconductive member serves as a junction to electrically connect two or more conductors and alsoprovides means to individually connect or disconnect conductors. The device can be a sectional or one-piece design.2.14 UNPREPARED CONDUCTOR A conductor which has been cut and the
47、insulation of which hasbeen removed for insertion into a terminal. The conductor end is bare. The conductor in an insulationpiercing or displacement connector is considered to be unprepared.2.15 WIRE BINDING SCREW CONNECTOR A connector that uses a binding head screw, with orwithout a flat ring or lo
48、ck washers, where:a) An unprepared conductor is looped around the shank of the screw and secured under thehead of the screw; orFigure 2.1Quick-connect-type connectorDECEMBER 27, 2001 TERMINAL BLOCKS - UL 1059 11UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PE
49、RMISSION FROM ULb) A prepared conductor is assembled about the screw shank and retained by the head of thescrew.3 Units of Measurement3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.4 Undated References4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall beinterpreted as referring to the latest edition of that code or standard.5 Components5.1 Except as indicated in 5.2, a
