1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULOCTOBER 15, 20151UL 1861Outline of Investigation for Power-Operated Chemical PumpsIssue Number: 4October 15, 2015Summary of TopicsThis fourth issue of Outline of Investigation for Power-Operated
2、ChemicalPumps, UL 1861, is being issued to revise the Moist Ammonia Air StressCracking Test and to add an exception and marking requirement forpumps not provided with motor protection.ULs Outlines of Investigation are copyrighted by UL. Neither a printed norelectronic copy of an Outline of Investiga
3、tion should be altered in any way. All ofULs Outlines of Investigation and all copyrights, ownerships, and rights regardingthose Outlines of Investigation shall remain the sole and exclusive property of UL.COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHE
4、R REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULOCTOBER 15, 2015UL 18612No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .62 General 72.1 Components .72.2 Units of measurement .72.3 Undate
5、d references .73 Glossary .7CONSTRUCTION4 Assembly 85 Materials .85.1 General .85.2 Metallic materials .95.3 Nonmetallic materials 105.4 Gaskets and seals 106 Bodies, Covers, and Heads .117 Drive Shaft Seals 118 Diaphragms .129 Springs .1210 Floats .1211 Air Separators 1312 Pressure Relief .1313 Mou
6、nting and Base .1314 Guards 1415 Piping and Fittings 1416 Electrical Equipment 1517 Supply Connections .1717.1 General .1717.2 Cord connected products 1717.3 Permanently connected products .1818 Current Carrying Parts 2019 Insulating Material 2020 Internal Wiring 2220.1 Mechanical protection .2220.2
7、 Types of wire 2320.3 Splices and connections 2321 Separation of Circuits .2522 Capacitors .2523 Grounding .2623.1 General .2623.2 Grounding identification .2724 Motors .2724.1 Construction .2724.2 Overload protection .2824.3 Brushes and brush holders 2925 Overload or Thermal Protective Devices .302
8、6 Switches and Controls .3027 Spacings 31OCTOBER 15, 2015 UL 1861 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPROTECTION AGAINST INJURY TO PERSONS28 General 3229 Sharp Edges .3330 Enclosures and Guards 3331 Attachments 3532 Surface Temper
9、atures .3533 Secondary Circuits 3633.1 General .3633.2 Protection of wiring .36PERFORMANCE34 General 3735 Retention Test for Screws and Bolts 3836 Deformation Test .3837 Leakage Test 3938 Endurance Test 4039 Endurance Test for Air Separators 4140 Blocked Outlet Test .4141 Pressure Relief Test 4142 H
10、ydrostatic Strength Test 4243 Float Buoyancy Test 4244 Dimensional Stability Test .4345 Weight Change Test 4346 Float Crushing Test .4447 Moist Ammonia Air Stress Cracking Test 4548 Metallic Coating Thickness Test 4549 Coating Liquid Resistance Test .4750 Starting Current Test 4751 Input Test 4752 T
11、emperature Test .4852.1 General .4852.2 Maximum normal load 5253 Dielectric Voltage Withstand Test .5254 Grounding Continuity Test .5355 Rain Test 5356 Submersion Test .5657 Strain Relief Test .5657.1 Pull test .5657.2 Push back strain relief test 5758 Insulation Resistance Test .5759 Leakage Curren
12、t Test .5860 Pneumatic Parts Pressure Distortion Test 6161 Pneumatic Parts Endurance 6262 Pneumatic Parts Impact Test .6263 Tests on Sealing Compounds 6264 Conductor Secureness Test 63MANUFACTURING AND PRODUCTION TESTS65 Production Line Tests .6365.1 General .63OCTOBER 15, 2015UL 18614UL COPYRIGHTED
13、 MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL65.2 Leakage test .6465.3 Running test .6465.4 Dielectric voltage withstand 6465.5 Grounding continuity test 66INSTRUCTIONS66 Instructions 6666.1 General .6666.2 Instructions pertaining to risk of fire, electr
14、ic shock, or injury to persons .6766.3 Installation instructions 6866.4 Operating instructions .6866.5 User maintenance instructions .6866.6 Moving and storage instructions 69RATING67 Details .69MARKING68 General 6969 Cautionary Markings 7170 Permanence of Marking .72OCTOBER 15, 2015 UL 1861 5UL COP
15、YRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover electrically powered chemical pumps rated 600 V or less and installed inaccordance with the National Electrical Code, NFPA 70.1.2 These requirements do n
16、ot cover pumps rated more than 600 V. In addition, these requirements donot cover:a) Oil burner pumps, which are evaluated under the Standard for Pumps for Oil-BurningAppliances, UL 343.b) Pumps for engine powered automotive equipment.c) Pumps for marine use, which are evaluated under the Standard f
17、or Mechanically andElectrically Operated Fuel Pumps for Marine Use, UL 1130.d) Pumps for use in chemical, petrochemical, or petroleum processing plants; utility powerplants; petroleum production facilities; pipeline pump stations; pipeline or marine terminals; orbulk plant distribution and related f
18、acilities.e) Pumps used in mobile applications, such as on tank trucks, portable tanks, or portablecontainers mounted on vehicles.f) Pumps for use with flammable or combustible liquids intended for motor vehicles, which areevaluated under the Standard for Power-Operated Pumps For Petroleum Dispensin
19、g Products,UL 79.g) Pumps that are provided with a flammable liquid meter or electrically-operated shutoff valve,which are evaluated in accordance with the Standard for Power-Operated Dispensing Devicesfor Petroleum Products, UL 87.h) Pumps for handling liquids under cryogenic temperatures less than
20、 minus 60C (minus76F).OCTOBER 15, 2015UL 18616UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2 General2.1 Components2.1.1 Except as indicated in 2.1.2, a component of a product covered by this Outline shall comply withthe requirements for tha
21、t component.2.1.2 A component is not required to comply with a specific requirement that:a) Involves a feature or characteristic not required in the application of the component in theproduct covered by this Outline, orb) Is superseded by a requirement in this Outline.2.1.3 A component shall be used
22、 in accordance with its rating established for the intended conditions ofuse.2.1.4 Specific components are incomplete in construction features or restricted in performancecapabilities. Such components are intended for use only under limited conditions, such as certaintemperatures not exceeding speci
23、fied limits, and shall be used only under those specific conditions.2.2 Units of measurement2.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.2.3 Undated references2.3.1 Any undated reference to a code or standard appearing i
24、n the requirements of this Outline shall beinterpreted as referring to the latest edition of that code or standard.3 Glossary3.1 For the purpose of this outline, the following definitions apply.3.2 INTENDED CARE AND USAGE Intended care means tasks such as lubrication and cleaning.Intended usage cove
25、rs the manipulations involved in normal operation of the pump.3.3 LINE VOLTAGE CIRCUIT A circuit having a potential of not more than 600 volts and havingcircuit characteristics in excess of those of a low voltage circuit.3.4 LOW VOLTAGE CIRCUIT A circuit involving a peak open circuit potential of no
26、t more than 42.2volts supplied by:a) A battery;b) A Class 2 transformer; orc) A combination of transformer and a fixed impedance that, as a unit, complies with theperformance requirements for Class 2 transformers in accordance with the Standard for Class 2and Class 3 Transformers, UL 1585.OCTOBER 15
27、, 2015 UL 1861 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3.5 RAINPROOF ENCLOSURE An enclosure that prevents the entrance of a beating rain to theextent that there is no wetting of electrical parts and no water enters a compartment housi
28、ng fieldinstalled wiring.CONSTRUCTION4 Assembly4.1 The construction of a pump shall be such that the parts can be assembled in the intended mannerafter being dismantled to the extent needed for replacement of parts or for other maintenance or servicing.4.2 When a pump requires the use of special pip
29、e flanges, gaskets, bolts, or other special fittings or partsfor making connections, such parts shall be furnished as part of the pump assembly.4.3 A product shall be formed and assembled so that it has the strength and rigidity required to resist theabuses to which it is subjected without resulting
30、 in the risk of fire, electric shock or injury to persons dueto total or partial collapse with:a) Resulting reduction of spacings;b) Loosening or displacement of parts; orc) Other defects.4.4 A pump motor assembly to be shipped from the manufacturer disassembled shall be provided withthe marking des
31、cribed in 68.9.5 Materials5.1 General5.1.1 A part in contact with the fluid to be handled shall be resistant to the action of the fluid if degradationof the part results in:a) Leakage;b) Unsafe functioning of equipment; orc) A risk of injury to persons.5.1.2 Metallic materials shall comply with 5.2
32、and can be used with any fluid provided it complies with5.1.1. Nonmetallic materials, other than for gaskets and seals, shall comply with 5.3. Nonmetallic materialsshall also comply with 5.1.1, but shall only be used with nonflammable and noncombustible fluids.5.1.3 An adhesive that is relied upon t
33、o reduce the risk of fire, electric shock, or injury to persons, or thatis relied upon to maintain electrical spacings, shall comply with the requirements for adhesives in theStandard for Polymeric Materials Use in Electrical Equipment Evaluations, UL 746C.OCTOBER 15, 2015UL 18618UL COPYRIGHTED MATE
34、RIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL5.1.4 The requirement in 5.1.3 also applies to an adhesive used to secure a conductive part, including anameplate, which when loosened or dislodged is capable of:a) Energizing an accessible dead metal part;b) Makin
35、g a live part accessible;c) Reducing spacings below the minimum values specified in Table 27.1; ord) Short-circuiting live parts.5.2 Metallic materials5.2.1 Except as indicated in 5.2.2, metallic liquid confining parts shall have a melting point (solidustemperature) of not less than 510C (950F) and
36、a tensile strength of not less than 10,000 psi (69 MPa)at 204C (400F) when the fluid being confined is classified as flammable or combustible. If the fluid is notclassified, then no minimum solidus temperature or tensile strength is defined.5.2.2 A brazing material used for joining flammable or comb
37、ustible liquid confining parts of a pump shallhave a melting point (solidus temperature) exceeding 538C (1000F). For pumps intended for use withnon-classified liquids, no minimum solidus temperature is defined.5.2.3 Sand castings used in the construction of liquid confining parts, failure of which w
38、ill allow externalleakage, shall be free from porosity leakage and shall have a design thickness of not less that specifiedin Table 5.1.Table 5.1Minimum thickness of liquid-confining sand-castingsMaterial Minimum wall thickness,inch (mm)Cast iron 3/16 4.8Malleable iron, ductile iron, or cast steel 1
39、/8 3.2Brass or bronze 3/32 2.4Aluminum 5/32 4.05.2.4 When warping of a casting can affect the tightness of liquid confining joints, or the necessary fit ofparts, the casting shall be stress relieved to reduce the possibility of warping.5.2.5 When atmospheric corrosion of a part will interfere with t
40、he intended function of a pump or permitexternal leakage, the part shall be of corrosion-resistant material or be provided with a corrosion-resistantprotective coating.5.2.6 A coating as specified in 5.2.5 need not be provided on ferrous materials used for fluid confiningparts having the following t
41、hicknesses:a) Casting having a wall thickness of not less than 6.4 mm (1/4 inch);b) Standard pipe and fittings conforming to ANSI/ASME B36.10M, Schedule 40; andc) Fabricated sheet steel parts having a minimum wall thickness of 2.36 mm (0.093 inch).OCTOBER 15, 2015 UL 1861 9UL COPYRIGHTED MATERIAL NO
42、T AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL5.2.7 A protective coating as specified in 5.2.5 shall provide resistance to corrosion to a degree not lessthan that provided by the protective coatings indicated in 5.2.8.5.2.8 Cadmium plating shall have a thickness of n
43、ot less than 0.008 mm (0.0003 inch) and zinc platingshall have a thickness of not less than 0.013 mm (0.0005 inch). However, on parts where threadsconstitute the major portion of the area, the thickness of the cadmium or the zinc plating shall be not lessthan 0.0038 inch (0.00015 inch) as determined
44、 by the Metallic Coating Thickness Test, Section 48.5.2.9 A protective coating indicated in 5.2.7 or other coatings in contact with the liquid shall be resistantto the action of the liquid, as indicated in the Coating Liquid Resistance Test, Section 49.5.2.10 A part made of drawn brass or machined f
45、rom brass rod, and consisting of 15% or more zinccontent, shall withstand the Moist Ammonia-Air Stress Cracking Test, Section 47.5.3 Nonmetallic materials5.3.1 Nonmetallic materials used as fluid confining parts shall have a thickness that is suitable forshowing compliance with 6.1.5.3.2 The reliabi
46、lity of a nonmetallic, pneumatic pressure confining part shall be determined for eachapplication. Among the factors to be taken into consideration with the reliability of a nonmetallic materialare:a) Mechanical strength:b) Resistance to impact;c) Resistance to distortion and creeping at temperature
47、and pressures to which the material issubjected under conditions of intended use; andd) Dimensional stability.Compliance with this requirement is determined by the tests of Sections 44, 60, 61, and 62.5.4 Gaskets and seals5.4.1 An elastomeric part used in contact with the liquid shall have the follo
48、wing properties when testedas specified in the Standard for Gaskets and Seals, UL 157:a) Those properties relating to minimum tensile strength and elongation after oven aging, asspecified in UL 157. The service temperature used to determine the conditioning time andtemperature for oven aging is to b
49、e 60C (140F), unless the product is designated for use at ahigher temperature, or the temperature of the component measured during the temperature testis higher.b) Low temperature rating of minus 29C (minus 20F).c) Volume change of 25% maximum and extraction of 10% maximum when tested as specifiedin the requirements for UL 157, using the fluids that the pump is intended to be used with.OCTOBER 15, 2015UL 186110UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL5.4.2 An elastomeric part forming a pa
