Spare parts, installation and maintenance - Brook …

1 Spare parts, installationand maintenanceRotating Electrical MachinesTotally enclosed and totally enclosed fan ventilated motorsEEx e, EEx nA and combustible dust designsFrame sizes 71 to 355 Typical marking is as follows:2218 EII T3 EEx e0600II 2 GBAS00 ATEX2102U and BAS00 ATEX2045 UII T3 EEx nA1180II 3 GBAS00 ATEX3119X and BAS00 ATEX3133X0600II 2 DBAS00 ATEX2205X and BAS99 ATEX22171180II 3 DBAS00 ATEX3206X and BAS99 ATEX3218T125 CT125 C2218E Issue 1eSpare parts, installation and maintenance EEx e, EEx nA and combustible dust designsTypical W constructionFrame sizes W-DA71 to W-DF3552242526 81342562079101122 212312131415161817195 123456789 Ref part descriptionDrive end endshield fixing boltsDrive end endshieldDrive end oilsealPreloaded washerDrive end bearingRotor assemblyStator assembly with or without feetEarth terminalEyebolt101112131415161718 Ref part descriptionNon-drive end bearing cap (when fitted)

2 Non-drive end bearingBearing circlipNon-drive end oilsealNon-drive end endshieldNon-drive end endshield fixing boltsFanFan circlipFan cover1920212223242526 Ref part descriptionFoot locking method (when fitted)Bolt-on feet and boltsTerminal board and fixing screwsTerminal box, gasket and fixing screwsTerminal box lid, gasket and boltsFlange endshieldFace endshieldBolt-on pad2218E Issue 1eSpare parts, installation and maintenance EEx e, EEx nA and combustible dust designsMarking3 MarkingTypical marking is as shown belowand has the following meaning:II T3 EEx e1180II 2 GEC Markfor electrical equipment in hazardous atmospheresNotified body (test house), identification number(1180 = Baseefa (2001) Ltd)d- Flameproof to EN 50018e- Increased safety to EN 50019nA- Non-sparking EN 50021de- Flameproof with increased safety terminals EN 50018 & 19E- European certificationEx- Explosion protectionG= Gas ORD= DustEquipment groupGroupIIIM iningNon-miningApplicationEquipment categoryGas symbol GCategory 1 Zone 0 Category 2 Zone 1 Category 3 Zone 2 Dust symbol DCategory 1 Zone 20 Category 2 Zone 21 Category 3 Zone 22 Zone Criteria Presence of Gas or DustContinuously or very long periodPresent in normal operationUnlikely but if present, then only for a short timeTemperature classT1T2T3T4T5T6450 C300 C200 C135 C100 C85 CMaximum surfacetemperatureNote.

3 Category 1, Zone 0 and Zone 20 are not applicable toelectric motorsII 2 G EEx e II T31180 Compliant with European DirectivesDust - EN 50281-1-1 Dust are marked differently, eg:II 2 D T125 CT125 C= certified external surface temperature11802218E Issue 1eSpare parts, installation and maintenance EEx e, EEx nA and combustible dust designsGeneral/installation4 WarningThese motors are certified by a EuropeanNotified Body for use in hazardous areasand should be installed, maintained andrepaired (if necessary), strictly inaccordance with the relevant standards andcodes of practice of the user country for therepair and overhaul of Ex electricalapparatus. (For example, in UK: EN 60079-19 and recommendations outlined in theBEAMA/AEMT Code of Practice for repairand overhaul of Ex electrical apparatus ).

4 The certificates issued apply to motors asoriginally supplied, and in order to maintainvalidity, it is essential that any servicing/repair be undertaken only by accreditedestablishments (see paragraph on Sparesand Repairs ). Only genuine replacementparts can be used on these certified motors- always specify motor serial number,output (kW), RPM, voltage, Hz andmounting when ordering personnel only must undertakehandling and lifting of electric motors. Seeadditional sections of this manual and thecustomer safety and installationinstructions. Full product documentationand operating instructions must be availabletogether with tools and equipmentnecessary for safe working - before any work commences,reference should be made to the warningparagraph at the top of this any motor is accepted on site, itshould be carefully inspected for damage orloss incurred during any damage to the carriers and yoursupplier as soon as possible, quoting themotor and/or order number andconsignment note reference.

5 The insurancecompanies agents shown on the insurancecertificate should also be the motor is not to be used immediately, itshould be stored in a clean, dry place whichis vibration free. Temperature should bestabilised to -20 C to +40 drain holes are provided, they aresupplied with a screwed, fitted plug. Under no circumstances should the motorbe located or operated in a hazardousenvironment with these plugs removed asthe enclosure protection will and/or lifting trunnions suppliedwith the motor are designed to support onlythe weight of the motor, notthe weight ofthe motor and any ancillary equipmentattached to it. Be absolutely sure thatcranes, jacks, slings and lifting beams arecapable of carrying the weight of equipmentto be an eyebolt is provided with themotor, this should be screwed down until itsshoulder is firmly against the face of thestator frame to be lifted.

6 Eyebolts arenormally designed for a vertical two eyebolts are used with inclinedloading, the maximum safe working loadsshould not be exceeded, see table(approximate weights) on page avoid static indentation (false brinelling),the storage area should be vibration free. Ifthis is not possible, it is stronglyrecomended that the motors be stood onthick blocks of rubber or other soft exposure to some vibration is notunavoidable, the shaft should be locked inposition to avoid static indentation of thebearingsShafts should be rotated by hand (90 ), bearings may be fitted with a shaftlocking device. This should be kept in placeduring fitted regreasable bearings useeither Lithium or Polyurea based greasewith a recommended shelf life of two stored for a longer period, the grease mayneed to be replaced.

7 Shielded bearingshave a storage life of five years and a furthertwo years operational life anti-condensation heaters have beenfitted, it is strongly recommended that theyare energised during storage. In such cases,prominent warnings of live terminals (insidethe terminal box) must be posted inside andoutside the terminal must be isolated whilst the motor isenergised, since the heaters, if energised,could cause the motor surface temperatureto exceed the maximum for which it iscertified. This would invalidate thecertification and could result in ignition ofthe surrounding atmosphere. Heaters mustbe de-energised before opening any part ofthe motor the certificate permits, the windingmay be energised at a low voltage as analternative to anti-condensation heaters (formaximum voltage see marking on motor).

8 The mains supply must be disconnectedduring these anti-condensation heaters are notfitted, the use of a desiccant from storageBefore taking any motor from storage,ensure that anti-condensation heaters (iffitted), have been disconnected and isolatedbefore moving the motor. Check that noforeign matter is present and remove allsurface dust and the stator insulation resistance betweenphases and also to earth. If an insulationresistance of lower than ten Megohms at20 C is measured, the windings must bedried out. Any such tests must not becarried out whilst there is risk of thepresence of an explosive atmosphere. Aftermeasurement, the windings should bedischarged immediately to avoid the risk ofelectric shock or electrostatic must be installed with adequateaccess for routine maintenance .

9 A minimumof of working space around themotor is recommended. Adequate spacearound the motor, particularly at the faninlet (50mm), is also necessary to several motors are installed in closeproximity or other heat sources are present,care must be taken to ensure that there isno re-circulation of exhausted warm must be solid, rigid and motors which are mounted verticallywith the output shaft facing upwards, thedriven equipment must prevent fallingobjects from entering the fan connectionThe connection diagram is shown on theleaflet enclosed in the motor terminal boxor the diagram inside the terminal box cables used should be capable ofcarrying the full load current of the motor(see motor nameplate), without overheatingor undue voltage terminationsAll cable terminations should be tightlysecured.

10 There should be no nuts or lockwashers fitted between the supply and themotor attached cables shall besuitably protected against mechanicaldamage and terminated within the terminalor junction facility suitable for the conditionsof should be carried out or checked bya qualified electrician and equipment mustbe earthed in accordance with Issue 1eSpare parts, installation and maintenance EEx e, EEx nA and combustible dust designsInstallation 5 When the motor is despatched with plasticplugs fitted into the cable entry holes, theseplugs mustbe removed prior tocommissioning and a suitably certifiedgland inserted. Cable entries are not to beleft open, therefore if any holes are unusedor made redundant, they must be pluggedwith a suitably certified and correctlyinserted stopping plug (stopping plugs tobe removed only with the aid of a tool).