INSTRUCTION BOOK KEY INTERLOCK SYSTEMS

1 PCIB-10369/11/89 Supercedes PCIB-103 Key INTERLOCK SystemsINSTRUCTION BOOKKEY INTERLOCK SYSTEMSWARNINGFOLLOW THE SAFETY instructions AND WARNINGSTHROUGHOUT THIS book . FAILURE TO DO SOCAN RESULT IN DAMAGE TO PROPERTY, PERSONAL INJURY, OR ADDITION TO THE MAINTENANCE AND PRECAUTIONS AS OUTLINED WITHIN, REFER TO ENTITLED:PERSONNEL PROTECTIONLOCKOUT/TAGOUT OF ENERGY SOURCESMINIMUM SAFETY REQUIREMENTS**These instructions may not cover all details or variations in equipment, nor provide for every possible contingency further information be desired or should problems arise which are not covered sufficiently, the matter should be referredto the POWERCON Box 477, 1551 Florida Avenue, Severn, MD 21144 Phone: 410-551-6500 email CHECKING OR MAINTENANCE OFSWITCHGEAR, AFTER IT HAS BEEN INSTALLED - THEFOLLOWING MUST BE OBSERVED: ONLYQUALIFIED PERSONS MAY OPERATE, INSPECT ORMAINTAIN POWER SWITCHGEAR.

2 IN ADDITION TOTHE PERSONNEL YOU MAY HAVE WHO AREQUALIFIED, OTHERS MAY BE AVAILABLE FROM ANEXPERIENCED HIGH VOLTAGE CONTRACTOR ORTHE UTILITY SERVICING THE INSTALLATION. IT ISTHE RESPONSIBILITY OF THE PURCHASER,INSTALLER, OR ULTIMATE USER TO INSURE THATTHE WARNING SIGNS AR NOT REMOVED AND TOMAKE SURE THAT ALL ACCESS doors , ANDOPERATING HANDLES ARE SECURELY LOCKEDWHEN THE GEAR IS LEFT UNATTENDED BYQUALIFIED PERSONS, EVEN NOT REMOVE COVERS, OPEN doors , OR WORK ON EQUIPMENT UNLESSPOWER HAS BEEN TURNED OFF AND ALL CIRCUITS DE-ENERGIZED ANDDISCONNECTED. DISCONNECT, DE-ENERGIZE, LOCKOUT AND PROPERLYGROUND CIRCUIT(S) BEFORE WORKING ON THIS EQUIPMENT. USE PROPERSAFETY PRECAUTIONS WHEN WORKING ON THIS SAFETY CODES, SAFETY STANDARDS, AND/OR REGULATIONS AS THEYMAY BE APPLIED TO THIS TYPE OF EQUIPMENT MUST BE STRICTLY ADHEREDTO . BEFORE ANY ADJUSTMENTS, SERVICING, PARTS REPLACEMENT OR ANYOTHER ACT IS PERFORMED REQUIRING ANY PHYSICAL CONTACT WITH THEELECTRICAL COMPONENTS OR WIRING OF THIS EQUIPMENT, THE POWERSUPPLY MUST BE ADDITION TO THE PERSONNEL PRECAUTIONS AS OUTLINED, REFER TO: PERSONNEL PROTECTION LOCKOUT/TAGOUT OF ENERGYSOURCES MINIMUM SAFETY REQUIREMENTS ANSI/NFPA 70E-1988: ELECTRICAL SAFETY REQUIREMENTS FOREMPLOYEE WORKPLACES ANSI/NFPA 70B-1988: ELECTRICAL EQUIPMENT MAINTENANCETHE EQUIPMENT COVERED BY THIS INSTRUCTION book MUST BE SELECTEDFOR A SPECIFIC APPLICATIONS AND IT MUST BE INSTALLED, OPERATED, ANDMAINTAINED BY QUALIFIED PERSONS WHO ARE THOROUGHLY TRAINED ANDWHO UNDERSTAND ALL OF THE HAZARDS INVOLVED.

3 As with any electricalapparatus, the thorough knowledge of the engineering safety, inspection, maintenanceand repair techniques as well as being familiar with particular features of theapparatus involved is mandatory. THIS book DOES NOT PROVIDE SUFFICIENTINSTRUCTIONS FOR INEXPERIENCED ELECTRICIANS OR UNQUALIFIEDPERSONS TO DO ANY WORK REQUIRED INCLUDING THE HANDLING,INSTALLATION, TESTING, OPERATION, INSPECTION, MAINTENANCE, ANDREPAIR.[SAFETY GROUNDING TO BE DONE ON DE-ENERGIZED EQUIPMENT energizing the equipment and prior to anytesting it is recommended that all circuits be safelygrounded. Prior to any grounding whether it be forany testing, inspection, or maintenance procedures,assure that all safety precautions are taken. It isfurther recommended that an appropriate properlyoperating glow tube instrument that lights up andwarns the worker when held in any alternatingcurrent field, indicating the presence of voltage, beused prior to DOING SUCH WORK SHOULD WEARLINEMAN S PROTECTIVE EQUIPMENT INACCORDANCE WITH SUCH EQUIPMENTMANUFACTURER S RECOMMENDATIONSINCLUDING BUT NOT LIMITED TO PROTECTIVEGLOVES, INSULATED SLEEVES, LINEMAN SBLANKETS, INSULATED HELMETS, FACE AND EYEPROTECTION that will assist in preventing injury if forany reason the equipment is grounded to an energizedcircuit.]

4 Every precaution should be taken to preventelectrical grounding on an energized circuit. Suitablegrounding clamp leads should be used and safety groundingtechniques employed. ALL SUCH GROUNDS MUST BEREMOVED AFTER TESTING, INSPECTION, ORMAINTENANCE PRIOR TO ENERGIZING as much as Powercon has no control over the useto which others may put this material, statementsconcerning uses of the materials described herein arenot to be construed as suitable for these used unlessproper technology in he usage, applications, andmaintenance are strictly observed. For furtherinformation call or write the Powercon IS IMPERATIVE THAT YOU READ AND COMPLETELYUNDERSTAND THE WARNING LOCATED TO THE RIGHT OF THISBLOCK, FAILURE TO DO SO CAN RESULT IN DAMAGE TOPROPERTY, PERSONAL INJURY OR DEATHPCIB-10363 LIMITED WARRANTYP owercon warrants that the equipment we deliver will be of the kind and quality described in the order or contract and will be free ofdefects in workmanship and material.

5 Should any failure to conform to this warranty appear within one year after date of shipment,Powercon shall upon prompt notification thereof and substantiation that the equipment has been stored, installed, operated andmaintained in accordance with Powercon recommendations and standard industry practice, correct such nonconformities, at its option,either by repairing any defective part or parts or by supplying a repaired or replacement part or parts factory. However, ifPowercon has installed the equipment or furnished field engineering services with respect to its installation, and provided suchinstallation has not been delayed by the Purchaser, said one year shall run from the completion of the installation. The total warrantyperiod shall not exceed 18 months from the date of shipment in any no event shall Powercon be responsible for providing working access to the defect, including the removal, disassembly, replacementor reinstallation of any equipment material or structures to the extent necessary to permit Powercon to perform its warranty obligations,or transportation costs to and from the Powercon factory or repair facility.

6 The conditions of any tests shall be mutually agreed uponand Powercon shall be notified of, and may be present at, all tests that may be WARRANTIES SET FORTH IN THIS PROVISION ARE EXCLUSIVE AND IN LIEU OF ALL OTHERWARRANTIES WHETHER STATUTORY, EXPRESS OR IMPLIED (INCLUDING ALL WARRANTIES OFMERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE AND ALL WARRANTIES ARISING FROMCOURSE OF DEALING OR USAGE OF TRADE), EXCEPT OF TITLE AND AGAINST PATENT INFRINGEMENT. Theremedies provided above are the purchaser s sole remedies for any failure of Powercon to comply with its obligations. Correction ofany nonconformity in the manner and for the period of time provided above shall constitute complete fulfillment of all the liabilities ofPowercon whether the claims of the Purchaser are based in contract, in tort (including negligence) or otherwise with respect to orarising out of the equipment furnished IMPLEMENTATIONS AND CONDITIONSOn those occasions where service help is required, the Powercon Corporation should be notified at once through its ServiceDepartment.

7 No charges Or expenses should be incurred except as authorized by the Corporation in writing. Making unauthorizedcorrections or doing unauthorized work voids this Warranty and renders reimbursement times, the Powercon Corporation may request labor and/or material services from you. At our option we will provide competentsupervision who will authorize such services by signing the Time Sheets of the people involved. No reimbursement can be madewithout signed Time services rendered must be of the type and quality satisfactory to the Powercon Corporation, and we reserve the right to reject anyand all such above in no way prejudices the right of the Powercon Corporation to correct, as stipulated in the Warranty, any problems that mayoccur in equipment manufactured by the Powercon INSTRUCTION book is furnished in "As is" condition. No warranties expressed or implied, including warranties of fitness for aparticular purpose, or merchantability, or warranties arising from course of dealing or usage of trade are made regarding theinformation, recommendations, descriptions, and safety notations contained herein.

8 In no way will Powercon be responsible to theuser in contract, in tort (including negligence), strict liability or otherwise for any direct special, indirect, incidental, or consequentialdamage or loss whatsoever, including but not limited to damage or loss of use of equipment, plant, or power system , cost of capital,loss of profits or revenues, cost of replacement power, additional expenses in the use of existing power facilities, or claims against theuser by its customer resulting from the use of information, recommendations, descriptions, and safety notations contained information, recommendations, descriptions, and safety notations in this document are based on Powercon's experience andjudgment in respect to all of the subject matter contained herein. This information must not be considered to be all inclusive orcovering all INTERLOCK SYSTEMSA pplicationAn INTERLOCK SYSTEMS is a series of key interlocks applied toassociated equipment in such a manner, as to allow operationof the equipment only in prearranged are applicable to practically any field wherein humanlife or property is endangered, by an improper operation orimproper sequence of of Interlocking - Interlocks are an importantelement of the safety system .

9 They are an important item inpresent day management because of the general desire toprovide safe working conditions. Increasing safety legislationand a reduction of insurance rates when safety devices are used- are added incentives for the use of INTERLOCK is a device applied to, two or more moveableparts, preventing or allowing a movement of one part, onlywhen another part is locked in it's predetermined Requirements for InterlocksThere are three fundamental conditions to be met in asatisfactory INTERLOCK . It must be: Positive in ActionThe INTERLOCK must normally make the controlled equipmentabsolutely inoperative at all times. SimpleThe INTERLOCK must be a simple auxiliary device easily installedand also easily and quickly operated. InexpensiveThe INTERLOCK must be relatively inexpensive in proportion tothe equipment protected so that it's use may be InformationThe Powercon Key INTERLOCK system is a simple, easy methodof applying individual key INTERLOCK units and assemblies toelectrical switchgear assemblies requiring operation in apredetermined of Interlocks and AssembliesThe INTERLOCK housings are made of high strength aluminumalloy and are designed for mounting with 3/8' bolts.

10 Thelocking bolt is 5/8" diameter high strength aluminum lock is a special 7-pin tumbler lock, simple and rugged inconstruction. The lock housing is 7/8" diameter. The key hasan ample finger grip of distinctive pattern. The lock number isstamped on the face of the lock and also on the key. It is aserial number applying to the lock combination and is used as arecord for possible replacement and extension of Powercon Key Interlocks can be provided with spst, spdt ordpdt switches - as required. Additional information on theseinterlocks is available upon type interlocks can be provided for all of thePowercon Key INTERLOCK plastic weatherproof covers of specially formulatedmaterials are available. They are designed for close fittingrequirements and to eliminate dust and type interlocks can be designed to meet and MaintenanceUnder normal conditions, interlocks should not require anymaintenance service.