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Summary of Contents for Powell PowlVac 1200A
- Page 1 DRAFT Powered by Safety ® 01.4IB.51000C PowlVac® Metal-Clad Switchgear 5kV & 15kV, 1200A, 2000A, 3000A, & 4000A Force Cooled Courtesy of NationalSwitchgear.com...
- Page 2 PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Contact Information Powell Electrical Systems, Inc. powellind.com info@powellind.com Service Division PO Box 12818 Houston, Texas 77217-2818 Tel: 713.944.6900 Fax: 713.948.4569 Powered by Safety ® Courtesy of NationalSwitchgear.com...
- Page 3 01.4IB.51000C Signal Words Qualified Person As stated in ANSI Z535.4-2007, the signal word is For the purposes of this manual, a qualified a word that calls attention to the safety sign and person, as stated in NFPA 70E®, is one who has designates a degree or level of hazard seriousness.
- Page 4 PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV This page left blank intentionally. Powered by Safety ® Courtesy of NationalSwitchgear.com...
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Page 5: Table Of Contents
01.4IB.51000C Contents Ch 1 General Information ....................1 A. S ................................2 cope B. p ................................2 urpoSe c. I ....................2 nStructIon ulletInS vAIlABle lectronIcAlly D. A ............................3 SSocIAteD ulletInS Ch 2 Safety ........................4 A. S ............................4 onDItIon B. S ...............................4 Afety uIDelIneS c. - Page 6 PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Contents Ch 4 Installation ......................17 A. G ................................. 17 enerAl B. r ................................ 17 eceIvInG c. h ............................... 17 AnDlInG D. S ................................. 18 torAGe e. p ........................19 repArAtIon of loor nchorInG f.
- Page 7 01.4IB.51000C Contents f. e ............................44 lectrIcAl perAtIon G. S ................................ 44 hutterS h. r ) ..................... 45 emovABle lement oSItIon nterlock ptIonAl I. f ..............................45 loor J. t (toc) (o ) ....................46 ruck perAteD WItch ptIonAl k. m (moc) (o ) ..................
- Page 8 PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Figures Figure 1 Metal-Clad Switchgear Line-up ..............6 Figure 2 One High Basic Construction .................7 Figure 3 Two-High Basic Construction .................7 Figure 4 Interior Metal-Clad Switchgear (Lower Compartment) ......10 Figure 5 Front Cover of Circuit Breaker ..............10 Figure 6 Circuit Breaker Cover Removed ..............13 Figure 7...
- Page 9 01.4IB.51000C Figures Figure 36 Lower Mechanism-Operated Cell Switch (MOC) and Operating Mechanism .................47 Figure 37 Upper Mechanism-Operated Cell Switch (MOC) and Operating Mechanism .................48 Figure 38 4000A Force Cooled Section Views ..............56 Tables Table A Standard Dimensions ...................8 Table B Ratings of Medium Voltage PowlVac® Metal-Clad Switchgear ......9 Table C Bolt Torque Values ....................25 Table D Bus Wrapping Components ................26 Table E Insulation of Bus Bar ...................27...
- Page 10 PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV This page is intentionally left blank. Powered by Safety ® Courtesy of NationalSwitchgear.com...
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Page 11: Ch 1 General Information
The information in this instruction bulletin is not intended to explain all details or variations of the Powell equipment, nor to provide for every possible contingency or hazard to be met in connection with installation, testing, operation, and maintenance of the equipment. For additional information and instructions for particular problems, which are not presented sufficiently for the user’s purposes, contact Powell at 1.800.480.7273. -
Page 12: S Cope
This instruction bulletin provides: be implemented at any time and without notice. Go to powellind.com to ensure use 1. Safety guidelines of the current instruction bulletin for Powell equipment. 2. General descriptions of the operation and maintenance of the PowlVac metal-clad For more information visit powellind.com. -
Page 13: Associated B Ulletins
01.4IB.51000C D. A SSocIAteD ulletInS • 01.4IB.60201A PowlVac® STD Vacuum Circuit Breaker • 01.4IB.60202A PowlVac® CDR Vacuum Circuit Breaker • 01.4IB.60301A PowlVac® STD Vacuum Circuit Breaker • 01.4IB.60302A PowlVac® CDR 63kA Vacuum Circuit Breaker • 01.4IB.51056A PowlVac® ARM Automatic Racking Mechanism Vacuum Circuit Breaker •... -
Page 14: Ch 2 Safety
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Ch 2 Safety 6. Where the possibility of induced voltages or stored electrical energy exists, ground A. S the phase conductors or circuit parts onDItIon before touching them. Where it could be The information in Section A is quoted from reasonably anticipated that the conductors NFPA 70E 2012 - Article 120, 120.1 Establishing an or circuit parts being deenergized... -
Page 15: G Eneral
01.4IB.51000C c. G serviced only by skilled and knowledgeable enerAl personnel capable of releasing each spring 1. Only supervised and qualified personnel load in a controlled manner. Detailed trained in the usage, installation, operation, information regarding these mechanisms and maintenance of the switchgear shall is found in the circuit breaker instruction be allowed to work on this equipment. -
Page 16: Ch 3 Equipment Description
Metal-Clad Switchgear Line-up A. G enerAl NOTICE Powell is committed to continuous product improvement. It is possible that improvements occurred between revisions to this document and therefore, may not be described in these instructions. If the equipment does not resemble the photographs and descriptions contained herein, do not attempt to perform the actions. -
Page 17: D Imensions
01.4IB.51000C B. D Note: Each construction includes primary ImenSIonS and secondary compartments, as The PowlVac® switchgear basic vertical sections shown in Figure 2 and 3. These are available in two configurations: instructions apply to both types of construction. Where significant 1) One-high Construction differences exist between the two construction types, each is explained... -
Page 18: S Econdary C Ompartment
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Table A Standard Dimensions Internal Arcing Continuous Current Height Depth Configuration Short-Circuit Rating Rating (Amperes) (inches) (inches) (kA) One-High 1200, 2000 25, 36, 50 & 63 835/8 One-High 1200, 2000, 3000 25, 36, 50 & 63 One-High 4000 (FC)* 25, 36, 50 &... -
Page 19: Atings
01.4IB.51000C Table B Ratings of Medium Voltage PowlVac® Metal-Clad Switchgear Power Main Bus Symmetrical Short Time Momentary Obsolete Cell Width Maximum Nominal Frequency Continuous short-circuit Current withstand Crest inch/mm Voltage Voltage Withstand Current Rating 2 sec. Rating (kV) Rating (kV) (A rms) (kA rms) (kA) -
Page 20: Ircuit Reakers
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Figure 4 Interior Metal-Clad Switchgear For a detailed description of the circuit breaker (Lower Compartment) and its operation refer to the appropriate instruction bulletin for PowlVac vacuum circuit breaker. Figure 5 Front Cover of Circuit Breaker a. -
Page 21: Ircuit B Reaker R Acking M Echanism
01.4IB.51000C h. c The shutters are open and the secondary IrcuIt reAker AckInG echAnISm circuits and control contacts are completed. NOTICE Interlocks deter the movement of a circuit breaker from one position to another unless When the circuit breaker main closing spring the circuit breaker is tripped open. -
Page 22: S Afety I Nterlocks And P Rovisions
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV I. S a “trip-free” condition while the circuit Afety nterlockS AnD rovISIonS breaker is being racked into or out of the NOTICE connected position. Safety shutters open and close over the Warning and Caution labels are located in stationary primary disconnect devices in various places. -
Page 23: A Uxiliary C Ompartments
01.4IB.51000C A rollout stop block is provided to deter k. A onDenSAtIon eAterS the removal of the circuit breaker from the Anti-condensation heaters are provided in compartment until the rollout latch on the all PowlVac switchgear in order to facilitate circuit breaker is depressed. -
Page 24: Oltage Otential Ransformer Ollout Arriage
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV l. v m. f oltAGe otentIAl rAnSformer ISconnectInG evIce ollout ArrIAGe ollout ArrIAGe Current limiting fuses with high interrupting The voltage transformers are mounted on a rating are sometimes used in metal-clad rollout carriage equipped with primary and switchgear to protect small transformers secondary disconnecting devices. -
Page 25: C Urrent T Ransformers (T Hrough -T Ype )
01.4IB.51000C When fuses are disconnected, they are at a WARNING safe striking distance from all live parts of the switchgear. In addition, a grounding device is Prior to adjustments, servicing, maintenance, provided which contacts the fuses after they or any act requiring the operator to make are disconnected, effectively removing any physical contact with the equipment, the static charge from the fuses. -
Page 26: P Rimary D Q. L Ighting
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV p. p rImAry ISconnect evIceS upportS The stationary primary disconnect devices have flat silver-plated copper contact bars located within the molded epoxy supports found at the rear of the circuit breaker compartment, behind the safety shutters. The rear of the contact is bolted to the main bus riser or to the line-side bus. -
Page 27: Ch 4 Installation
When the switchgear lineup reaches its destination, the purchaser should check the material actually received against the shipping Contact the Powell Service Division for installation, maintenance, and renewal parts assistance. list to be sure that all parts have been received. -
Page 28: S Torage
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV If bases are furnished, the switchgear may 1. Equipment designed for indoor installation be moved on an even surface by the use of must be stored indoors in a climate rollers or heavy-duty pipes placed under the controlled environment to prevent base. -
Page 29: P Reparation Of F Loor -A Nchoring
01.4IB.51000C 3. The auxiliary control devices, ship loose The floor channels should have a minimum material and protective relays must also web dimension of 4 inches. The required be protected. This includes items such as quantity and location of the floor channels battery chargers, UPS systems, lighting, is shown on the drawings furnished with installation hardware and air conditioning. -
Page 30: P Ositioning The M Etal -C Lad Switchgear
Before any installation work is done, consult and study all drawings and the Bill NOTICE of Materials furnished by Powell for the particular order. The drawings include arrangement drawings and wiring and Applicable national or local codes or schematic diagrams. -
Page 31: D Oor A Lignment
01.4IB.51000C Additional shipping members may have G. D lIGnment been installed in the bus or primary area If for any reason it is necessary to realign the to ensure against shipping damage. All doors of the switchgear during installation shipping members must be removed from perform the following: the switchgear compartments. -
Page 32: T He R Emovable E Lement
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV h. t Figure 14 Auxiliary Device with Shipping emovABle lement Bracket The removable element may be shipped loose in its own protective box or inserted in the switchgear when the equipment is installed in a PCR®. If the circuit breaker is in the switchgear, it will be locked in place by a special bracket designed to prevent motion during shipment. -
Page 33: G Rounding
01.4IB.51000C Removable elements located in the one-high A ground bus is furnished with lugs at each construction, or in the lower compartment of end for connection to the station grounding the two-high construction may be rolled into system. the vertical section of the switchgear from The ground is bolted to the rear of the vertical the floor. -
Page 34: C Onnections
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV J. c Figure 15 Ground Bus Splice Plate Connection onnectIonS The main bus bars and other connection bars are copper. The connection surfaces are silver surfaced or equivalent. The silver plating used on bolted contact surfaces is approximately 0.0001”... -
Page 35: Ain B Us Assembly And I Nsulation
01.4IB.51000C 1) Main Bus Joint Insulation Table C Bolt Torque Values Bolt Torque Bolt Main bus joints are insulated with either a Dimensions Head Ft-Lbs Kg-M custom fitted boot or with hand applied (inches) insulating tape. Ch 4 Installation, k. m SSemBly AnD nSulAtIon 2) Wrapping of Joints will describe the... -
Page 36: Wrapping Of Joints
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Figure 17 Boot Installation a. Bus Bars 5kV & 15kV Apply appropriate number of layers of high voltage tape, mastic side down, at a medium tension to bus bars per Table D, Bus Wrapping Components. Note: All bus bars are to be round edge type. -
Page 37: Figure 18 Insulation Of Bus Bar
01.4IB.51000C Figure 18 Insulation of Bus Bar Figure 19 Single Bus Bar Connection Joint .048 (1.2) Approximate Epoxy Insulation Dimension (Tape Tension) Thermoplastic Sleeving 1/2W or Tape Insulation “W” “B” - 1/2 LAP 1 - Layer, 1/2 LAP = 2 Thicknesses “A”... -
Page 38: Figure 20 Double Bus Bar Connection Joint
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Figure 20 Double Bus Bar Connection Joint Figure 21 Tee Connection Joint “C” Epoxy Insulation Thermoplastic Sleeving 4” (101.6) Wide or Tape Insulation PAD HV Tape “C” .50 (12.7) .50 (12.7) “B” .50 (12.7) .50 (12.7) “A”... -
Page 39: Applying Bus Insulating Boots
01.4IB.51000C 3) Applying Bus Insulating Boots If wiping or vacuuming does not clean the bus adequately, only distilled water, a. Prepare all joints as outlined in denatured alcohol or isopropyl alcohol Ch 4 Installation, J. c should be used to remove any foreign onnectIonS b. -
Page 40: I Nsulating P Rimary C Able T Erminations
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV m. I Figure 22 Cable Termination Joint nSulAtInG rImAry ABle ermInAtIonS All field assembled joints for primary cable Epoxy Insulation Thermoplastic Sleeving or Tape Insulation terminations should be prepared as outlined under Ch 4 Installation, J. c . -
Page 41: G Round F
01.4IB.51000C Figure 23 Bar-Type Current Transformer Joint n. G rounD Ault urrent rAnSformerS Insulation InDoW Window-type current transformers are Pre-Insulation Epoxy insulation Thermoplastic Sleeving or furnished where specified for sensitive Tape Insulation protection against ground faults. These transformers are normally installed in a “A”... -
Page 42: C Ontrol C Ables
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV o. c Where units have been split for shipment, any ontrol ABleS control or other secondary leads that must Space is provided for control cables to enter connect across the split will be arranged with the switchgear from either the top or the terminal blocks in a convenient location so that bottom of the units. -
Page 43: B Us D Uct E Ntry
01.4IB.51000C When assembling the connection bar end Figure 24 Roof Bushing of the roof entrance bushings inside of the switchgear and other terminations where POTHEAD BUSHING TERMINATOR porcelain insulators are used, insulation should RB Putty * .75 (19.1) be applied as follows: “C”... -
Page 44: A Uxiliary D Evice R Ollout C Arriage
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV S. A To close the carriage, operate the secondary uxIlIAry evIce ollout ArrIAGe circuit breaker to the “off” position, lower Rollout carriages will be shipped in a slightly the interlock slider, and turn the “T” handle open position, which are held in place by two counterclockwise. -
Page 45: Ch 5 Operation
01.4IB.51000C Ch 5 Operation B. I nSertInG the emovABle lement nto the ompArtment WARNING CAUTION Compartment access shall be permitted ONLY Before inserting the circuit breaker into the to “Qualified Person”, as defined in NFPA 70E, compartment, be sure that the racking crank using “approved safe work practice”... -
Page 46: Inserting The Circuit Breaker Into The Lower Compartment (One-High Design)
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV The standard lift truck is used when adequate 2) Inserting the Circuit Breaker Into the Upper aisle space (68” minimum) is available. Perform Compartment (Two-High Design) the following steps to insert a circuit breaker in NOTICE the upper compartment: 1) Inserting the Circuit Breaker Into the Lower... -
Page 47: Acking M Echanism
01.4IB.51000C f. Roll the circuit breaker in the c. r AckInG echAnISm compartment until the racking crank The racking mechanism consists of two slotted arms make contact with the vertical cam plates mounted on each side of the slots in the compartment. The compartment (Figure 36, c) and the racking anti-rollout latch on the lower right side mechanism on the circuit breaker. -
Page 48: Figure 26 Recommended Method For Lifting Circuit Breaker To Upper Cell
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Figure 26 Recommended Method for Lifting Circuit Breaker to Upper Cell a. Lift Truck Ready to receive the Circuit Breaker Lift Truck and Switchgear Position Circuit Breaker placed on the Lift Truck Circuit Breaker approaching hook c. -
Page 49: Figure 27 Closed Door Racking
01.4IB.51000C Figure 27 Closed Door Racking CAUTION Use only the racking tools provided by Powell for inserting and removing the circuit breaker. The use of other tools such as electric drills, impact drills, etc., may damage the racking mechanism and render it inoperative. -
Page 50: Inserting The Circuit Breaker To The Test/Disconnected Position
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV D. r Figure 28 Secondary Disconnecting Device AckInG roceDure AnuAl CAUTION Before inserting the circuit breaker into the compartment, be sure that the racking crank arms of the circuit breaker are in the fully withdrawn position, pointing towards the moveable primary disconnects. -
Page 51: Inserting The Circuit Breaker To The Connected Position
01.4IB.51000C Figure 29 Standard Circuit Breaker in Test c. Turning the racking handle clockwise Position will begin to rack the circuit breaker into the compartment (Figure 31). When the circuit breaker is racked into the compartment, the force needed to rotate the racking handle will be low at the beginning of motion as the movement of the racking crank arms is only opening the shutters. -
Page 52: Connected Position
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV d. Once the circuit breaker has reached 3) Removing the Circuit Breaker from the the connected position, remove the Connected Position racking handle, verify that the manual trip operator has returned to its normal CAUTION position, close the compartment door, and operate the circuit breaker as... -
Page 53: Removing The Circuit Breaker From The Test/Disconnected Position Out Of The Circuit Breaker Compartment
01.4IB.51000C d. Turn the racking handle c. Press the anti-rollout latch counterclockwise until the breaker (Figure 32, a) to release the circuit position indicator displays breaker and pull the circuit breaker out “BREAKER TEST/DISCONNECTED”. of the circuit breaker compartment e. Remove the racking handle and verify using the handles. -
Page 54: Shutters
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV f. e Figure 33 Shutters lectrIcAl perAtIon 1. A one-line, or three-line diagram, and a schematic diagram are prepared for each metal-clad switchgear line-up. All diagrams shall be thoroughly studied and completely understood by the user before the metal-clad switchgear is placed into service. - Page 55 01.4IB.51000C h. r The interlock is held by gravity in the open, or emovABle lement oSItIon nterlock ptIonAl non-interlock position. When the removable element is out of the compartment, rotating CAUTION the interlock 90° clockwise, and securing it will block the insertion of a removable Before racking a circuit breaker in or out element.
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Page 56: Figure 35 Typical Compartment Door With Closed Door Or
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV J. t (toc) (o k. m (moc) ruck perAteD WItch ptIonAl echAnISm perAteD WItch ptIonAl The purpose of the truck-operated cell switch (TOC) (Figure 4, g) is to indicate whether or not The mechanism-operated cell switch (MOC) is the removable element is in the connected an auxiliary switch operated by linkages in the position. -
Page 57: Figure 36 Lower Mechanism-Operated Cell Switch (Moc) And
01.4IB.51000C l. S Figure 36 Lower Mechanism-Operated Cell econDAry ISconnect evIce Switch (MOC) and Operating The switchgear has a secondary disconnect Mechanism device, which is a 16-point plug mounted at the lower end of an umbilical cord, which hangs at the right side of the compartment. The secondary disconnect plug (Figure 4, j) plugs into the secondary disconnect receptacle (Figure 5, m) on the lower right front of the... -
Page 58: Figure 37 Upper Mechanism-Operated Cell Switch (Moc) And
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Figure 37 Upper Mechanism-Operated WARNING Cell Switch (MOC) and Operating Mechanism Under no conditions may the dummy element be racked in or out when the circuit it is connected to is under load. This action could result in death or serious injury. - Page 59 The settings of the protective relays must supplemental documents. For assistance be coordinated with the other relays on the with testing and inspection, contact Powell on our website at powellind.com, or call system and, therefore, these relays must be set by the user. General instruction books are 1.800.480.6900.
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Page 60: Table L Rated Control Power Voltages & Ranges For Circuit Breakers
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV When transformers are furnished to supply The covers for meters, relays, and other devices the control power, the primary taps should be which have to be removed during the course selected so that the control voltage indicated of installation and test should be carefully on the wiring diagram is obtained on the handled when removed. - Page 61 A. G enerAl When performing maintenance the power source must be disconnected and the Contact Powell Service Division for assistance equipment grounded. Failure to do so may in performing maintenance or setting up a result in death or serious injury.
- Page 62 PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV For all previous lubrication requirements CAUTION Powlube-104, A-grease replaces Anderol 757 and Rheolube 368A, B-grease replaces Use only the cleaners recommended in this Mobilgrease 28, and C-oil replaces Mobil 1 and document. Failure to do so could result in Anderol 456A.
- Page 63 01.4IB.51000C 6) Control Contacts 10) Battery and Charging Equipment The contacts should be inspected and The control battery is such an important dressed or replaced when the surface accessary to the switchgear operation becomes seriously pitted. Unless repetitive that it must be given special periodic duty has been experienced, little attention attention if it is to have a long life of reliable should be required.
- Page 64 PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV 13) Testing c. The resistance of bus connections may be checked by passing a measured The condition of each switchgear unit at DC current of 200A or more, through the time of inspection, should be listed in the joint and measuring the voltage a permanent record to become a guide for drop (in millivolts) across the joint.
- Page 65 01.4IB.51000C 15) Interlocks c. A BnormAl onDItIonS a. Shutter position interlock front door Local conditions such as high ambient component - verify that the actuator temperature, high humidity, salt-laden on the opening side of the door slides atmosphere, corrosive gases, heavy dust, ash, freely and operates the shutter position severe circuit operating conditions, vermin, flag.
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Page 66: Figure 38 4000A Force Cooled Section Views
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Figure 38 4000A Force Cooled Section Views a. Force Cooled Ventilation Exit b. Fan Package c. Rear Cell Ventilation Duct d. Circuit Breaker Compartment Door e. Force Cooled Ventilation Entry Powered by Safety ®... - Page 67 A sufficient amount of stocked parts minimizes service 1. Order Renewal Parts from Powell at interruptions caused by breakdowns and saves powellind.com or call 1.800.480.7273. time and expense. When continuous operation is a primary consideration, a larger quantity of 2.
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Page 68: Table M Accessories
PowlVac® Metal-Clad Switchgear 01.4IB.51000C 5kV & 15kV Table M Accessories Breaker Type Recommended Description Illustration Standard Closed-Door Quantity Racking Racking Secondary Disconnect 51555G01 51555G03 Override Device Manual Charging Handle 50235P01 50235P01 Racking Handle 50218G01 50218G01 Racking Start Extension 51066G01 CPT Secondary Disconnect 90421G01P 90421G01P PT Secondary Disconnect... -
Page 69: Table N Lift Trucks
01.4IB.51000C Table N Lift Trucks Space Requirements Part Number Description (Turning Aisle width and Entry Door, inches) PowlVac and PowlVac-AR two-high switchgear. (ARG, ARM, ASD, CDA, CDR, GCB, & STD circuit 68 1/2 inch turning aisle breakers & electrically/manually operated G&T) 51571G05 42 inch entry door &... - Page 70 August 2015 Powered by Safety ® Powell Electrical Systems, Inc. Tel: 713.944.6900 • Fax: 713.948.4569 Service Division - Houston powellind.com Courtesy of NationalSwitchgear.com PO Box 12818 • Houston, TX • 77217 info@powellind.com ©2006 Powell Industries, Inc. • All rights reserved.
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