Summary of Contents for AV-Line

Page 1: ...GEH2621A Instructions AV Line Switchboards Installation and Maintenance n Elicit if I EaGB s mm O B I i i WP if H I 3 i T i T 9 9 1 GENERAL ELECTRIC Courtesy of NationalSwitchgear com ...

Page 2: ...rcuit Cable Bracing MAIN CABLE AV 1 AV 2 AV 5 Switchboards utilizing cord for Short Circuit Protection AV 3 AV 4 Switchboards utilizing cord for Short Circuit Protection LOAD CABLE AV 3 AV 4 Switchboards utilizing cord for Short Circuit Protection Installing the Switchboard Switchboard Maintenance 3 4 5 5 5 6 6 7 8 9 10 11 11 12 2 Courtesy of NationalSwitchgear com ...

Page 3: ...nte nance Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser s purpose the matter should be referred to the General Electric Company I m N i 051 i r 0 n a M 3 a c a tin C3 Q QD c Li f c 55 A Spa FIGURE 1 Typical group mounted distribution construction FIGURE 2 Typical individually mounted distribution construction 3 Courte...

Page 4: ...g by crane or other hoisting methods done as shown in Figures 3 and 4 To remove the AV LINE Switchboard from the skids after taking out the shipping bolts carefully slide the equipment so that the rear side is off the skids resting on the floor see Fig 5 Tit the entire equipment slightlyto the rear torelease the skids Caution is advised in sliding and tilting this equipment due to its height and w...

Page 5: ...ith stub 4j Bolt stub bus to switchboard bus see Fig 7A Bolt neutral splice bus if required to stub neutral with hard ware furnished with the neutral splice bus 6 After stub and switchboard bus is properly aligned and bolted tighten down flange screws Remove shipping screws holding bus stub flange adapter to stub cover Slide adapter apart to allow stub to enter through slot in cover When space is ...

Page 6: ...eral Electric Company for the particular installation These include arrangement drawings front end and plan view connection diagrams and schedule of equip ment Any material external to the equipment which may be required to meet any local codes railings etc is not furnished INSPECTION AFTER MAIN CABLE INSTALLATION CABLE BRACE 4 To prevent heating there should be no closed loop of steel aroundasing...

Page 7: ...able necessary to accomplish the connections The increased resis tance of longer cables generates unneccessary heat Main ca ble lashing should be checked bi monthly INSTALLATION PROCEDURES FOR MAIN CABLE WITH SHORT CIRCUIT PROTECTION Align conduit holes in a linear orientation a distance equal to the radius bend of the cable Consideration should be given to in stalling conduits or sleeves which mi...

Page 8: ...nstruments or meters as thismay affect their accuracy Use the minimum amount of cable necessary to accomplish the connections The increased resis tance of longer cables generates unnecessary heat Loadcable lashing should be checked bi monthly INSTALLATION PROCEDURES FOR LOAD CABLE WITH SHORT CIRCUIT PROTECTION Locate the load cable braces which can be found every 18 on the back of the switchboard ...

Page 9: ...ture it is essen tial that the steel channels be level and aligned with each other prior to the final anchoring The recommended foundation con structionandmethodof mountingthe switchboardtothe founda tion is shown in Fig 9 Channels should be grouted after installation i ur r FIGURE 9 Switchboard mounted on floor channels indoor construction FRONT j I Outdoor Equipment Outdoor equipment is usually ...

Page 10: ...edandinspected BEFOREENERGIZING Althoughthe equipment and devices have been inspected at the factory a final field test should be made to becertainthatthe equipmenthasbeen properly installed andthat allconnectionsare correct andhavenot becomeloose intransportation It isrecommendedthatthe switchboardbe completely wire checked and all bolts and terminals double checked for tightness Check all Kirk k...

Page 11: ...ntenance For specific information regarding the maintenance of devices such as circuit breakers relays meters etc refer to the sepa rate instruction book furnished for each device 1 Periodically inspect switchboard while under load to deter mine if there is any indication of overheating If overheatingor any other unsatisfactory condition is found completely de energize switchboard and investigate ...

Page 12: ...ervice engineer General Electric Service Shops have facilities for reconditioning SPARE PARTS A spare parts stock for the components of the AV Line Switch board such as bus insulators etc is not recommended When components needtobereordered pleaserefer to thenameplate marking shop drawing number and order by description A spare parts stock of devices such as circuit breakers meters switches etc wi...

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