1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1332 Organic Coatings for Steel Enclosures for Outdoor Use Electrical Equipment STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PER
2、MISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Organic Coatings for Steel Enclosures for Outdoor Use Electrical Equipment, UL 1332 Fifth Edition, Dated February 12, 2016 Summary of Topics This new e
3、dition was issued to incorporate revisions to clarify existing text, add terminology, update standard references, replace obsolete standard references and generally reect current practice. The revised requirements are substantially in accordance with Proposal(s) on this subject dated May 29, 2015. A
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6、sing out of the use of or the inability to use this Standard, even if UL or an authorized 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 t
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8、c Standard on the purchasers computer system. FEBRUARY 12, 2016 UL 1332 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 12, 2016 UL 1332 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR D
9、ISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 12, 2016 1 UL 1332 Standard for Organic Coatings for Steel Enclosures for Outdoor Use Electrical Equipment First Edition March, 1986 Second Edition June, 1990 Third Edition February, 1995 Fourth Edition February, 2005 Fifth Edition February 12, 2016 Th
10、is ANSI/UL Standard for Safety consists of the Fifth Edition. The most recent designation of ANSI/UL 1332 as an American National Standard (ANSI) occurred on February 12, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Comments or proposals for r
11、evisions 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 of a Standar
12、d 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 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 1332-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
13、 OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 12, 2016 UL 1332 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 .4 3 Units of Measurement .5 4 References .5 PERFORMANCE
14、5 Specimens for Test .5 6 Specimen Preparation .5 7 Salt-Spray (Fog) Test 6 8 Moist Carbon Dioxide-Sulfur Dioxide-Air Test .6 9 Light and Water Test for Clear Coatings .7 MARKING 10 General .8 APPENDIX A ORGANIC COATING IDENTIFICATION A1 Scope .A1 A2 General .A1 A3 Test for Weight Per Gallon of Liqu
15、id Coating A1 A3.1 General .A1 A3.2 Test procedure A1 A4 Test for Percent Non-Volatile Content .A2 A4.1 General .A2 A4.2 Test procedure A2 A5 Test for Percent Insoluble Solids .A3 A5.1 General .A3 A5.2 Test procedure A3 A6 Test for Percent Ash A4 A7 Infrared-Analysis Test .A4 A8 Coating Thickness Me
16、asurement .A5 FEBRUARY 12, 2016 UL 1332 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover tests of opaque and clear organic coatings intended for application to exterior and interior surfaces
17、of steel enclosures of outdoor-use electrical equipment for protection of the metal against atmospheric corrosion. 1.2 These requirements cover organic coatings consisting of one or more coats and their system of application to steel or zinc-coated steel with specied pretreatment, application, bake
18、or cure schedule, and minimum dry-lm thickness. 1.3 The nal acceptance of a coating is dependent upon its use in a complete product that complies with the requirements in the standard applicable to such a product. 1.4 The requirements may be applied to other organic or nonmetallic coatings if found
19、to be appropriate. 1.5 The ammability or toxicity risks associated with the coating materials in any form, or the acceptability of the materials for uses other than indicated, are not within the scope of these requirements. 2 Glossary 2.1 For the purpose of this standard, the following denitions app
20、ly. 2.2 APPLICATION METHOD The procedure and equipment employed in applying the coating, which may also include parameters of equipment operation. 2.3 BAKE OR CURE SCHEDULE The time-temperature conditions used following the application of an organic coating. 2.4 ORGANIC COATING A coating containing
21、drying oils, resins, and setting or hardening agents such as reacting chemicals and catalysts or resins. 2.5 PRETREATMENT The cleaning or chemical process, such as iron or zinc phosphating, used on the metal surface prior to application of the organic coating. 2.6 RESIN The polymeric portion of an o
22、rganic coating system. 2.7 SUBSTRATE The specic metal surface to which the organic coating is to be applied. 2.8 WEEPING Corrosion discoloration (e.g. yellow, brown, or orange) condensation droplets of moisture on the coating surface. FEBRUARY 12, 2016 UL 1332 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED
23、 FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Units of Measurement 3.1 If a value for measurement is followed by a value in other units in parentheses, the second value may be only approximate. The rst stated value is the requirement. 4 References 4.1 Any undated reference t
24、o a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. PERFORMANCE 5 Specimens for Test 5.1 Specimens representative of the coating system are to be employed in these tests. The sheet steel used in the pre
25、paration of specimens of the coating is to be representative of the steel for which the coating is intended, with respect to composition and surface conditions. The specimens are to be prepared by the same procedures of surface cleaning, pretreatment, application of the coating system, drying or cur
26、ing, and minimum dry-lm thickness that will be used in the end-use product. 5.2 If a coating system is intended to be used in a range of colors, specimens representing the range are to be tested. Specimens with the highest resin to non-resin (excluding solvent) content ratio, lowest resin to non-res
27、in content ratio are to be tested. If specic color pigments, textures and/or non-resin solids are known to have unusual or critical performance properties, they are also to be tested. 5.3 Test specimens are to be 4 inches (102 mm) wide and 12 inches (305 mm) long, with the thickness of the base meta
28、l being representative of that in the end-use application. 6 Specimen Preparation 6.1 The edges or bare surfaces of all specimens are to be covered with moisture-resistant tape or compound. Two of the specimens are to be scribed in accordance with the Standard Test Method for Evaluation of Painted o
29、r Coated Specimens Subjected to Corrosive Environments, ASTM D1654. A single 8 inch (203.2 mm) diagonal V-cut scribe running lengthwise across the specimen is to be used. The scribe is to be free of burrs and is not to contact the edges. The scribing tool used is to be either: a) A carbide tipped to
30、ol Style E, with 1/64-inch (0.4-mm) nose radius, or b) A carbide tipped tool ground to a single point having an included angle of 60 15 degrees. FEBRUARY 12, 2016 UL 1332 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 7 Salt-Spray (Fog) Te
31、st 7.1 Two scribed and two unscribed specimens shall be exposed for 600 hours to salt spray in accordance with 7.3. Following exposure, specimens shall: a) Not show more than light corrosion beneath the coating with no visual pitting of substrate and only incipient buildup or weeping of corrosion, n
32、ot including the scribe, b) Comply with Table 7.1, and c) Not exhibit an average creepage distance from the scribe greater than Rating No. 5 1/8 to 3/16 inch (3.2 4.7 mm) as designated in the Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments, ASTM
33、 D1654, Procedure A; with maximum isolated spot not exceeding 3/8 inch (9.5 mm). Table 7.1 Blister size and frequency Maximum size a Maximum frequency 2o r4 F e w 6 or 8 Medium Note Compliance is to be determined in accordance with the Standard Test Method for Evaluating Degree of Blistering of Pain
34、ts, ASTM D714. a The largest blister size is Number 2 and the smallest blister size is Number 8. 7.2 Removal of the coating along the scribe shall be conducted by scraping the specimen vigorously with a rigid spatula, knife or similar instrument with no sharp edges or corners. 7.3 The specimens are
35、to be exposed to salt spray in accordance with the Standard Practice for Operating Salt-Spray (Fog) Apparatus, ANSI/ASTM B117. 8 Moist Carbon Dioxide-Sulfur Dioxide-Air Test 8.1 Two scribed and two unscribed specimens shall be exposed for 1200 hours to a mixture of moist carbon dioxide and sulfur di
36、oxide and air as described in 8.2 8.5. Following exposure, specimens shall: a) Except for the scribe, not show more than light corrosion beneath the coating with no visual pitting of substrate and only incipient buildup or weeping of corrosion products, b) Comply with Table 8.1, and c) Not exhibit a
37、n average creepage distance from the scribe greater than Rating No. 6 1/16 to 1/8 inch (1.6 3.2 mm) as designated in the Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments, ASTM D1654, Procedure A; with maximum isolated spot not exceeding 3/8 inch
38、(9.5 mm). FEBRUARY 12, 2016 UL 1332 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Table 8.1 Blister size and frequency Maximum size a Maximum frequency 2 None 4 or 6 Medium 8 Medium dense Note Compliance is to be determined in accordance
39、with the Standard Test Method for Evaluating Degree of Blistering of Paints, ASTM D714. a The largest blister size is Number 2 and the smallest blister size is Number 8. 8.2 Removal of the coating along the scribe shall be conducted by scraping the specimen vigorously with a rigid spatula, knife or
40、similar instrument with no sharp edges or corners. 8.3 The apparatus used for the moist carbon dioxide-sulfur dioxide-air exposure is to consist of a chamber having a volume of at least 3 cubic feet (0.08 m 3 ) with a water jacket and thermostatically controlled heater to maintain a temperature of 9
41、5 plus 2 or minus 3F (35 plus 1.1 or minus 1.7C). 8.4 Sulfur dioxide and carbon dioxide are to be supplied to the test chamber from commercial cylinders containing the gases under pressure. An amount of sulfur dioxide equivalent to 1 percent of volume of the test chamber, and an equal volume of carb
42、on dioxide are to be introduced into the chamber each working day. Prior to introducing the new charge of gas each day, the remaining gas-air mixture from the previous day is to be purged from the chamber. A small amount of water (approximately 10 ml/0.0003 m 3 of chamber volume) is to be maintained
43、 at the bottom of the chamber for humidity. This water is not to be changed during the exposure. 8.5 The specimens are to be supported in plastic racks at an angle of 15 to 30 degrees from the vertical. 9 Light and Water Test for Clear Coatings 9.1 Two scribed and two unscribed specimens shall be ex
44、posed for 500 hours to light and water in accordance with 9.3. Following exposure, specimens shall: a) Except for the scribe, show no base metal corrosion, b) Show no blisters, c) Not exhibit an average creepage distance from the scribe greater than rating No. 6 1/16 to 1/8 inch (1.6 3.2 mm) as desi
45、gnated in the Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments, ASTM D1654, Procedure A; with maximum isolated spot not exceeding 3/8 inch (9.5 mm), and d) Not show more than light corrosion of the base metal beneath coating uplifted from the scr
46、ibe with no visual pitting of substrate and only incipient buildup of corrosion products. 9.2 Removal of the coating along the scribe shall be conducted after exposure by scraping the specimen vigorously with a rigid spatula, knife or similar instrument with no sharp edges or corners. FEBRUARY 12, 2
47、016 UL 1332 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 9.3 The specimens are to be exposed to light and water in accordance with the Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory L
48、ight Sources, ASTM G151, and the Standard Practice for Operating Xenon Arc Light Apparatus for Exposure of Nonmetallic Materials, ASTM G155. The spectral power distribution of the xenon lamp shall conform to the requirement in Table 1 in ASTM G155 for a xenon lamp with daylight lters. The apparatus
49、shall operate with a spectral irradiance of 0.35 W/m 2 nm at 340 nm and a black-panel temperature of 63 3C (145.4 5.4F). During each operating cycle of 120 minutes, each specimen is to be exposed to: a) Light for 102 minutes, and b) Water spray with light for 18 minutes. MARKING 10 General 10.1 A product container shall be marked with the manufacturers name, trade name, code designation, or other marking that serves to identify the product. 10.2 If a manufacturer produces a c
