1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60335-2-79Household and Similar Electrical Appliances - Safety - Part 2-79: Particular Requirements forHigh Pressure Cleaners and Steam CleanersUL COPYRIGHTED MATERIAL
2、NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60335-2-79Household and Similar Electrical Appliances - Safety - Part 2-79: Particular Requirements for HighPressure Cleaners and Steam CleanersEdition: 1Edition Date: January 14, 2016Adoption
3、 of IEC 60335-2-79, Household and Similar Electrical Appliances, Part 2-79: ParticularRequirements for High Pressure Cleaners and Steam Cleaners (Edition 2.2 issued July 2007) asa new IEC-based UL standard, UL 60335-2-79, with National Differences.This document provides a single listing of the Natio
4、nal Differences included in the UL adoption ofthe corresponding IEC standard.All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission
5、of UL.UL provides this standards document as is without warranty of any kind, either expressed or implied,including but not limited to, the implied warranties of merchantability or fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar d
6、amages,including loss of profits, lost savings, loss of data, or any other damages arising out of the use of or theinability to use this standards document, even if UL or an authorized UL representative has been advisedof the possibility of such damage. In no event shall ULs liability for any damage
7、 ever exceed the pricepaid for this standards document, 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, or judgment (including reasonableatto
8、rneys fees) resulting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.Copyright 2016 Underwriters Laboratories Inc.JANUARY 14, 2016NATIONAL DIFFERENCES FOR UL UL 60335-2-792UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER RE
9、PRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis document provides a single listing of the technical National Differences included in the UL adoptionof the corresponding IEC standard.In its IEC-based standards, UL uses the notations indicated below to identify national difference type
10、, andthese types are additionally noted in this document. The standard may not use all types of thesedeviations.D1 - These are deviations which are based on basic safety principles and requirements, elimination ofwhich would compromise safety for U.S. consumers and users of products.D2 - These are d
11、eviations based on safety practices. These are deviations for IEC requirements that maybe acceptable, but adopting the IEC requirements would require considerable retesting or redesign on themanufacturers part.DC - These are deviations based on the component standards and will not be deleted until a
12、 particularcomponent standard is harmonized with the IEC component standard.DE - These are deviations based on editorial comments or corrections.DR - These are deviations based on the national regulatory requirements.Each national difference contains a description of what the national difference ent
13、ails. Typically one of thefollowing words is used to explain how the text of the national difference is to be applied to the base IECtext:Addition / Add - An addition entails adding a complete new numbered clause, subclause, table,figure, or annex. Addition is not meant to include adding select word
14、s to the base IEC text.Deletion / Delete - A deletion entails complete deletion of an entire numbered clause, subclause,table, figure, or annex without any replacement text.Modification / Modify - A modification is an altering of the existing base IEC text such as theaddition, replacement or deletio
15、n of certain words or the replacement of an entire clause,subclause, table, figure, or annex of the base IEC text.JANUARY 14, 2016 NATIONAL DIFFERENCES FOR UL UL 60335-2-79 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences1
16、DV.1 D2 Modification: Replace the second paragraph of Clause 1 of the Part 2 with thefollowing:1DV.1.1 This International Standard deals with the safety of high pressure cleaners forhousehold, industrial and commercial use having a pressure not more than 38 MPa at thepoint of maximum system pressure
17、 and a pressure at the pump outlet while spraying ofnot less than 2,5 MPa and not more than 35 MPa and with an input to the drive for the highpressure pump not exceeding 20 kW, their RATED VOLTAGE being not more than 250 V forsingle-phase appliances and 600 V for other appliances.1DV.1.2 A coin-oper
18、ated product is investigated under these requirements and under suchadditional requirements as are applicable to the product under consideration.1DV.2 D2 Modification: add the following to Clause 1 of the Part 2:1DV.2.1 These requirements do not cover liquid sand blasters or other products usingclea
19、ning solutions containing insoluble particulates.1DV.2.2 These requirements do not cover products that develop steam within a closedheated vessel or are connected to an external source of steam.1DV.2.3 These requirements do not cover burners with input ratings greater than 733 kW.2DV D2 Modification
20、: Add the following to Clause 2 of the Part 2:ANSI/OPEI B71.10-2013,Off-Road Ground-Supported Outdoor Power Equipment Gasoline Fuel Systems Performance Specifications and Test ProceduresANSI/NEMA Z535.3,Criteria for Safety SymbolsANSI/NEMA Z535.4,Product Safety Signs and LabelsUL 94Tests for Flammab
21、ility of Plastic Materials for Parts in Devices and AppliancesUL 295Commercial-Industrial Gas BurnersUL 296Oil BurnersUL 331Strainers for Flammable Fluids and Anhydrous AmmoniaJANUARY 14, 2016NATIONAL DIFFERENCES FOR UL UL 60335-2-794UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR
22、DISTRIBUTION WITHOUT PERMISSION FROM ULUL 514AMetallic Outlet BoxesUL 723Test for Surface Burning Characteristics of Building MaterialsUL 746BPolymeric Materials Long Term Property EvaluationsUL 943Ground-Fault Circuit-InterruptersUL 969Marking and Labeling SystemsUL 1439Test for Sharpness of Edges
23、on EquipmentUL 2111Overheating Protection for MotorsASTM B858-2006,Standard Test Method for Ammonia Vapor Test for Determining Susceptibility to StressCorrosion Cracking in Copper AlloysASTM D256-1981,Standard Test Methods for Determining the Izod Pendulum Impact Resistance of PlasticsASTM D396 REV
24、A,Standard Specifications for Fuel OilsASTM D471 REV A,Standard Test Method for Rubber Property, Effect of LiquidsASTM D664 REV A,Standard Test Method for Acid Number of Petroleum Products by Potentiometric TitrationASTM D1822,Standard Test Method for Tensile-Impact Energy to Break Plastics and Elec
25、trical InsulatingMaterialASTM D6751,Standard Specification for Biodiesel Fuel Blend Stock (B100) for Middle Distillate FuelsSAE J30,Fuel and Oil HoseSAE J1681,Recommended Practice for Gasoline, Alcohol, and Diesel Fuel Surrogates for MaterialTestingNFPA 69-2002,Explosion Prevention SystemsJANUARY 14
26、, 2016 NATIONAL DIFFERENCES FOR UL UL 60335-2-79 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNFPA 70,National Electrical CodeASME B1.20.1,Pipe Threads, General Purpose (Inch)3.1.9DV D2 Modification: Add the following to Subclause 3.1.9 of
27、 the Part 2:The product is to be operated with the omission of all recommended maintenance andcleaning operations, except that combustion engines are to be maintained in accordancewith the instructions.3.5.1DV D2 Modification: Replace Subclause 3.5.1 of the Part 1 with the following:PORTABLE PRODUCT
28、 an appliance that is intended to be carried or conveyed while in use, orthat is mounted on wheels and can be readily moved3.103DV DE Modification: replace 3.103 as follows:RATED PRESSURE maximum pressure at the pump outlet or at the steam cleaner assigned tothe appliance by the manufacturer3.119DV
29、D2 Modification: Add the following to Clause 3 of the Part 2:3.119DV.1 AIR SHUTTER a manual or automatic adjustable device that varies the size ofthe air inlet, or inlets, regulating primary or secondary air3.119DV.2 ALUMINUM COATED STEEL aluminum coated steel in which the bond between thesteel and
30、the aluminum is an iron-aluminum alloy3.119DV.3 COMBUSTIBLE MATERIAL material made of or surfaced with wood, compressedpaper, plant fibers, or other material that will ignite and burn Such material shall beconsidered as combustible even though flameproofed, fire-retardant treated, or plastered.3.119
31、DV.4 COMPLETE COMBUSTION combustion evidenced bya) absence of excessive smoke in the flue gases;b) absence of excessive concentrations of carbon monoxide;c) absence of noticeable quantities of aldehydes; andd) lack of evidence of unburned fuel3.119DV.5 FLUE COLLAR the portion of a product that is co
32、nstructed for attachment of thechimney or vent connector3.119DV.6 FUEL OIL any hydrocarbon oil as defined by ASTM D3963.119DV.7 GAS BURNER MANIFOLD the conduit of a product that supplies gas to theindividual burnerJANUARY 14, 2016NATIONAL DIFFERENCES FOR UL UL 60335-2-796UL COPYRIGHTED MATERIAL NOT
33、AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3.119DV.8 GUIDING HANDLE the handle by which the operator supports the least percentageof product weight when the product is in use, transported, or bothThis includes the handle of a hand-supported nozzle, lance, or wand.3.
34、119DV.9 HEATING SURFACES all surfaces that transmit heat directly from flame or fluegases to the medium to be heated3.119DV.10 HOT WATER PRESSURE WASHER (also known as “hot pressure washer,” “hot waterhigh-pressure cleaning machine,” “hot high-pressure cleaning machine,” “hot waterpower washer,” or
35、“hot power washer”)a pressure washer incorporating a heat source and a heat exchanger (usually a pipe ortubing coil) to heat the flowing water during operation of the machineThe heat may be derived from natural or LP gas, liquid fuel, or electricity. The heatsource operates only when water is flowin
36、g through the open-ended heat exchanger.Water is not heated in a closed vessel.3.119DV.11 HYDRAULIC POWER, KW a measure of hydraulic power developed by a productand calculated by multiplying the flow rate (l/min) by the fluid pressure (MPa) asmeasured at the discharge nozzle and dividing by the cons
37、tant 603.119DV.12 INTERLOCK a switch or control intended to monitor the physical state of arequired condition and to furnish an indication of that state to a safety-control circuit bymeans of a switch contact closure3.119DV.13 INTERMITTENT IGNITION ignition by an energy source that is continuouslyma
38、intained throughout the time the burner is firing3.119DV.14 INTERMITTENT PILOT a pilot that is automatically lighted each time there is a callfor heatThe pilot burns during the entire period that the main burner is firing.3.119DV.15 INTERRUPTED IGNITION ignition by an energy source that is automatic
39、allyenergized each time the main burner is fired and subsequently is automatically shut offduring the firing cycle3.119DV.16 INTERRUPTED PILOT a pilot that is automatically lighted each time there is a callfor heatThe pilot fuel is cut off automatically at the end of the main burner flame-establishi
40、ngperiod.3.119DV.17 LIMIT CONTROL a safety control responsive to changes in liquid level, pressure,or temperature, normally set beyond the intended operating range of the product to limitits operation3.119DV.18 LOW-VOLTAGE CIRCUIT a circuit involving a potential of not more than 30 voltsalternating
41、current (42.4 peak) or direct current and supplied by a primary battery or by astandard Class 2 transformer or by a combination of a transformer and a fixedimpedance having output characteristics in compliance with what is required for a ClassJANUARY 14, 2016 NATIONAL DIFFERENCES FOR UL UL 60335-2-7
42、9 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2 transformer A circuit derived from a source of supply classified as a circuit involving apotential of not more than 600 volts and having characteristics in excess of those of alow-voltage ci
43、rcuit, by connecting resistance in series with the supply circuit as a meansof limiting the voltage and current, is not considered to be a low-voltage circuit.3.119DV.19 MAIN BURNER FLAME-ESTABLISHING PERIOD the interval of time the main burner fuelsafety-shutoff valves are permitted to be open befo
44、re the primary-safety control isrequired to supervise the main burner flame3.119DV.20 NOZZLE a device with one or more openings for discharge of the fluid fromthe system. A nozzle restricts the fluid flow in order to obtain the desired pressure,velocity, spray patterns, and the resulting volume of f
45、low.3.119DV.21 PILOT FLAME-ESTABLISHING PERIOD the length of time fuel is permitted to bedelivered to a proved pilot before the flame-sensing device is required to detect pilotflame3.119DV.22 PRESSURE WASHER (also known as “high-pressure cleaning machine” or“power washer” or “high pressure cleaner”)
46、a machine incorporating a water inlet, a high pressure pump to increase the pressure ofthe incoming water, and a manually controlled water outlet nozzleSuch a machine is intended for cleaning by means of water pressure and flow. Pressurewashers are divided into three types according to 3.119DV.33 an
47、d 3.119DV.34.3.119DV.23 PROVED PILOT a pilot flame supervised by a primary-safety control that sensesthe presence of the pilot flame prior to permitting the main burner fuel to be delivered forcombustion3.119DV.24 RADIATION SHIELD a separate panel or panels interposed between heatingsurfaces and adj
48、acent objects to reduce heat transmission by radiation3.119DV.25 REGULATING (OPERATING) CONTROL a control, which may or may not be a safetycontrol or interlock3.119DV.26 SAFETY CONTROL automatic controls, including relays, switches, and otherauxiliary devices used in conjunction therewith to form a
49、safety control system, that willreduce the risk of fire, electric shock, or injury to persons during operation of theproduct3.119DV.27 SAFETY SHUTDOWN the action of shutting off all fuel and ignition energy to theproduct by means of a safety control or other controls such that restart cannot beaccomplished without manual reset3.119DV.28 SAFETY SHUTOFF VALVE a valve that is automatically closed by the safety controlsystem or by an emergency deviceSuch valve may be of the automatic or manually opened type.3.119DV.29 ST
