1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJUNE 30, 20151UL 6200Outline of Investigation for Controls For Stationary Engine DrivenAssembliesIssue No. 2June 30, 2015Summary of Topics:This is the second issue of the Outline of Investigation
2、 for Controls forStationary Engine Driven Assemblies.This Outline of Investigation covers engine and engine generator orengine driven fire pumps and similar equipment control panels andassemblies that operate, control and supervise an engine or generatorsoperational functions. These units perform pr
3、imary functions, such asengine control, overspeed control, fuel-flow control, ignition control,throttle control, engine temperature and low-oil indication, etc. Thesecontrol panels and assemblies may additionally perform other secondaryfunctions, such as battery charging, generator voltage regulatio
4、n, transferswitch control, overcurrent (overload) protection, stand-alone and utilityinteractive controls (protective relay functionality example: over, under,voltage and frequency, phase loss, phase reversal), ground-faultprotection, generator rotor and stator field control, and thermal protection.
5、ULs Outlines of Investigation are copyrighted by UL. Neither a printed norelectronic copy of an Outline of Investigation 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 exc
6、lusive property of UL.COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJUNE 30, 2015UL 62002No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT
7、PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .62 General 62.1 Units of measurement .62.2 Undated references .72.3 Verification 72.4 Environmental conditions 72.5 Components .83 Glossary .93.1 General .93.2 Personnel 103.3 Enclosures .103.4 Power 113.5 Insulation coordination .113.6 Wiring methods .
8、113.7 Ground .113.8 Circuits general 123.9 Generators .133.10 Equipment general .133.11 Engine controls 143.12 Annunciators 153.13 Cogeneration controls 153.14 Parallel generation systems .153.15 Protective controls 153.16 Current sensing 163.17 Fire detection and alarm systems 173.18 Functional saf
9、ety .17CONSTRUCTION4 General .185 Protection of Users and Service Personnel 186 Enclosures 186.1 General 186.2 Panel mounted displays 196.3 Specific enclosures 196.4 Equipment with incomplete or partial enclosures 20ELECTRICAL SYSTEM7 Separation of Circuits 208 Grounding 209 Electrical Connections 2
10、19.1 External connections .219.2 Receptacles and equipment mounted connectors .219.3 Plugs and connectors within the enclosure .2210 Secondary Circuits 22ELECTRICAL COMPONENTSJUNE 30, 2015 UL 6200 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM
11、 UL11 Solid Insulating Materials 2411.1 General .2411.2 Printed circuit boards .2412 Disconnection Device .2513 Overcurrent Protective Device 2514 Surge Protection Devices 2515 Transformers .2516 Battery Circuits .2517 Capacitors .2618 Enclosure Cooling Fans .2619 Visual Indicators 2620 Audible Indi
12、cators .2621 Switching Devices 2722 Motor Controllers .2823 Overtemperature Protection Devices 2824 Heating Device Controls .2825 Internal Power Transfer 2826 Isolation Components .2927 Fuel Control 3028 Engine Start Control 3028.1 General .3028.2 Manual engine start 3128.3 Automatic engine start 31
13、28.4 Automatic exercise control .3229 Engine Speed Control .3229.1 General .3229.2 Frequency regulation .3329.3 Voltage regulation 3330 Automatic Transfer Switch Control 3331 Electronic Protection 3332 Synchronization Control Utility Interactive 3433 Multiple Generator Paralleling Control Equipment
14、3434 Excitation Control .3435 Annunciators .3436 Safety Critical Circuits .34SPACINGS37 General 3537.2.1 Printed-wiring board assembly guidance .3538 Field Wiring Terminal Spacings .37PERFORMANCE39 Temperature Test .3840 Dielectric Voltage-Withstand Test .3841 Breakdown of Components Test .3942 AC O
15、utput Short Circuit Test of a Current Limiting Device in a Short Circuit Condition 3942.1 General .3942.3 Large Scale Power Plants Signal Injection Simulated Fault 3943 Integrated Combined Heat and Power controls (iICHP) .40MANUFACTURING AND PRODUCTION TESTSJUNE 30, 2015UL 62004UL COPYRIGHTED MATERI
16、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL44 Production-Line Testing .4044.1 Production-line dielectric voltage-withstand test 40RATINGS45 General 40MARKINGS46 General 4247 Warning Markings 4648 Accessory Markings .4749 Marking Locations 4750 Durability Of M
17、arkings .50APPENDIX AStandards for ComponentsA1JUNE 30, 2015 UL 6200 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements apply to control panels, control units, and other various electrical circuitsemploy
18、ed within a control circuit device intended for support functions, maintain operation and limitingsafety control features for use in a Stationary Engine Driven Assembly or similar equipment applications.1.2 These requirements cover controls operating at 600 Volts maximum with sensing and measurement
19、circuits without the use of isolation devices and 36 kV a.c. or d.c. maximum with the use of isolationdevices.1.3 These requirements apply only to electrically operated control equipment.1.4 These requirements apply to equipment intended to be operated and installed by skilled personnel inthe field.
20、1.5 These requirements do not apply to devices in the power circuit, but may apply to pilot devices thatwould control switching devices in the power circuit and devices that include circuits that monitor a powercircuit.1.6 These requirements do not apply to controls for the propulsion engine of a ve
21、hicle.1.7 These requirements apply to control equipment used in or with Movable engine driven assembliesthat are otherwise constructed the same as Stationary engine driven assemblies.1.8 These requirements do not apply to independent equipment that does not perform any controlfunction of an engine d
22、riven assembly.1.9 These requirements may supplement but do not cover equipment or devices for use in or connectedto hazardous (Classified) locations.2 General2.1 Units of measurement2.1.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate info
23、rmation.JUNE 30, 2015UL 62006UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2.2 Undated references2.2.1 Any undated reference to a code or standard appearing in the requirements of this outline shall beinterpreted as referring to the latest e
24、dition of that code or standard.2.3 Verification2.3.1 Labels and literature intended to accompany a product, such as installation, rating, operation, anduser-maintenance instructions or manuals shall be reviewed in the investigation of the product.2.4 Environmental conditions2.4.1 This standard appl
25、ies to equipment designed for use under the following conditions:a) Indoor or outdoor use;b) Altitude 0 to 2000 m;c) Ambient temperature per Table 2.1;d) Maximum relative humidity in that does not exceed the levels charted in Figure 2.1;e) Voltage fluctuation of 90 percent to 110 percent of the nomi
26、nal rated voltage for mainsconnected equipment and 75 percent to 120 percent of the nominal rated voltage for batteryconnected circuits;f) Overvoltage Level III based on direct connection to distribution circuits and local to thegenerator assembly; andg) Pollution degree 3 macro environment.Table 2.
27、1Ambient temperaturesMinimum MaximumEnclosed/open equipment Enclosed equipment Open equipmentC F C F C FIndoor 0 (32) 40 (104) 55 (131)Outdoor minus 35 (minus 31) 55 (131) 70 (158)This is generated text for figtxt.JUNE 30, 2015 UL 6200 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
28、 ORDISTRIBUTION WITHOUT PERMISSION FROM UL2.5 Components2.5.1 Except as indicated in 2.5.2, a component of a product covered by this outline shall comply with therequirements for that component. See Appendix A for a list of standards covering components typicallyused in the products covered by this
29、standard.2.5.2 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 document, orb) Is superseded by a requirement in this document.2.5.3 A component shall be used
30、in accordance with its rating established for the intended conditions ofuse.2.5.4 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 specif
31、ied limits, and shall be used only under those specific conditions.Figure 2.1Maximum relative humidityJUNE 30, 2015UL 62008UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2.5.5 If the manufacturer assigns a rating or an intended use to a compo
32、nent of a device (for example,an integral auxiliary switch intended to control an external circuit) the component is to be evaluated forthat rating or use or both.3 Glossary3.1 General3.1.1 AMBIENT TEMPERATURE The temperature of the air medium into which the heat of theequipment is dissipated. See T
33、able 1 for standard ambient temperature conditions.3.1.2 SURROUNDING AIR TEMPERATURE RATING A rating assigned to open type equipment thatrefers to the maximum ambient temperature of air immediately surrounding the equipment inside of theultimate enclosure.3.1.3 CONTROL CIRCUIT A circuit that carries
34、 the electric signals directing the performance of adevice, but which does not carry the main power. A control circuit is generally limited to 15 amperes.3.1.4 PILOT DEVICE An auxiliary mechanism that actuates, energizes, governs, or regulates anothermechanism.3.1.5 PILOT DUTY The rating assigned to
35、 the output of a Pilot Device or similar circuit to control theenergizing of the coil of a relay, contactor, solenoid, or similar coil operated mechanism.3.1.6 PILOT LIGHT A lamp that indicates when a pilot device is operating.3.1.7 LOAD DEVICE The solenoid, relay, contactor, circuit breaker, motor,
36、 heater, or other devicecontrolled by the output circuit of a controller.3.1.8 CONTROLLER A device or group of devices that serves to govern, in some predeterminedmanner, the electric power delivered to the apparatus to which it is connected.3.1.9 CONTROL SYSTEM An assembly of two or more engine and
37、/or generators control circuitcomponents such as engine control modules, paralleling modules, fuel control modules, and voltageregulators in combination with push-button, pilot lights, selector switches, timers, switches, and/or controlrelays. Generator Control Systems may be provided with a complet
38、e enclosure, partial enclosure for flatsurface panel mounting, or open type for mounting totally within an ultimate enclosure such as the enginegenerator assembly enclosure.3.1.10 SNUBBER CIRCUIT A device or circuit used to suppress (“snub”) voltage transients in electricalsystems. Snubber circuits
39、are frequently used in electrical systems with an inductive load where thesudden interruption of current flow often leads to a sharp rise in voltage across the device creating theinterruption. This sharp rise in voltage is a transient and can damage and lead to failure of the controllingdevice. A sp
40、ark is likely to be generated (arcing), which can cause electrical breakdown of a switchingdevice or electromagnetic interference in other circuits. The snubber prevents this undesired voltage byconducting transient current around the device.JUNE 30, 2015 UL 6200 9UL COPYRIGHTED MATERIAL NOT AUTHORI
41、ZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3.1.11 ENGINE DRIVEN ASSEMBLY Includes the engine and any machine designed to convertenergy; thermal energy, rotating mechanical work, electrical power generation.3.1.12 WET LOCATIONS Location where occasional or continuous exposu
42、re to water or other liquidsis anticipated. Circuits, including wiring and connections, exposed to outdoor environments or spraying,splashing, or dripping water, oil, or coolant (such as within the engine compartment) are considered to bein wet locations.3.2 Personnel3.2.1 OPERATOR Trained Personnel
43、 responsible for day to day operation of the system.3.2.2 SKILLED Having undergone formal instruction and/or educational program related to the specifiedtasks.3.3 Enclosures3.3.1 ENCLOSURE The portion of a unit that:a) Reduces the accessibility of a part that involves a risk of fire, electric shock
44、or injury topersons, orb) Reduces the risk of propagation of flame, sparks, and molten metal initiated by an electricaldisturbance occurring within.3.3.2 ENCLOSURE TYPE RATINGS Enclosed control equipment is identified with an enclosure typedesignation and is intended for use as indicated in Table 11
45、0.28 of NFPA 70.3.3.3 ASSEMBLY ENCLOSURE The enclosure provided and evaluated with the end product assemblythat houses the generator, prime mover, and associated electrical equipment. Engine and generatorcontrols may be housed in the engine or generator assembly enclosure or in a separate attached o
46、rremote enclosure.3.3.4 WEATHER ENCLOSURE An Assembly Enclosure that is intended to protect from exposure toenvironmental conditions of an outdoor application. Weather Enclosures are normally rated “rainproof”,which is equivalent to the ingress protection provided by the Enclosure Type rating of 3R,
47、 and “raintight”,which is the same as rainproof excepted no entrance of water is allowed under the rain test.3.3.5 ENCLOSED EQUIPMENT Equipment provided with complete enclosures and marked with one ormore specific Enclosure Type ratings.3.3.6 PANEL MOUNT Equipment with partial or incomplete enclosur
48、es intended for mounting throughthe exterior wall in an opening provided in an enclosure. Panel mount equipment investigated for mountingthrough the wall specific enclosure types are marked “Suitable for use on a flat surface of a Type _enclosure,” or the equivalent, and are provided with instructio
49、ns and mounting hardware. Panel mountequipment has aspects of both enclosed and open type equipment.JUNE 30, 2015UL 620010UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3.3.7 OPEN-TYPE Unless otherwise specified in the instructions or markings on the product, open-typeequipment is intended for installation completely within enclosures supplied in the field.3.4 Power3.4.1 OVERVOLTAGE Any voltage that exceeds its rated or intended value. A continuous overvoltagec
