Siemens WL Series Instruction & Installation Manual

Also see for WL Series: Selection and Application Guidelines Operating instructions

Type WL Low Voltage Metal-Enclosed SwitchgearReceiving, Handling & Storage8Final Movement of AssemblyProper final movement and connection of the assembly requiresthat several items be completed.1. Preplan sequence of installation movements and connections.2. Where equipment must be slid into final location, startwith the left end shipping group and continue in sequence.Secondary conduits which stub-up above floor level mayblock sliding in either direction. End trim must be removedbefore attempting slide units into place.3. Protect equipment and external items from damage duringmovements. Be sure to have smooth, unobstructed surfaceswhere the equipment is to be slid. Keep access openings clear.4. Prepare for the connections across shipping splits before theequipment is moved into final position. Note the mountingposition and orientation of any items removed during install-ation, and save hardware for use in installation.5. Thread coiled wires across shipping splits into interunit wiretrough prior to moving equipment into its final position.6. Where top lift capability is available, the shipping skid andother packaging materials may be removed before the lastmove into the final position.7. Where top lift capability is not available, protect the switch-gear bottom with support timbers and move with jacks androllers just to the side of its final position. Remove rollers,shipping skid, and other packaging materials and removejacking facilities. Clear any obstructions. The equipmentmay be slid sideways to join the shipping split. Any slidingforce must be carefully applied across the bottom 4 inches(100mm) of the switchgear side with proper cribbing tofully distribute the force across the full depth of side. Theend trim covers must be removed from the last section tokeep them from being crushed when sliding the equipment.Replace end trim when gear is in it’s final position. Watchfor conduit stubbing as equipment is slid into place. SeeFigure 6.Figure 6. Final Positioning of Switchgear in Obstructed AreasWithout a Crane8. Be sure to install roof channels on outdoor switchgear tomake the equipment weather resistant. See Figure 13.9. See “installation” section for additional important information.Storage-Indoor SwitchgearWhen switchgear is not to be installed immediately, it shouldbe unpacked, inspected within 15 days of receipt and stored ina clean dry location. Indoor switchgear is neither weather resist-ant nor drip resistant. Therefore, it should be stored indoors. If itis to be stored outdoors, or in a humid, unheated area, providean adequate covering, and place a heat source of approximately400 watts output within each vertical section to prevent con-densation. Space heaters are not standard equipment on indoorswitchgear. Lubricate any moving parts such as hinges, shutters,etc., if storage is for an extensive period of time.Storage-Outdoor SwitchgearWhen storing outdoor switchgear in an area exposed to theweather or to humid conditions, energize the space heatersprovided within the sections and make certain that louversand vents are uncovered to allow air to circulate. The heatercircuit is typically accessible by opening the rear door of theswitchgear. Refer to the switchgear wiring diagram todetermine where space heater connections can be made.Lubricate any moving parts such as hinges, shutters, etc., ifstorage is for an extensive period of time. Be sure to installroof channels during storage to make the equipment weatherresistant. See Figure 13.If the outdoor switchgear lineup consists of multiple shippinggroups, it is neither weather resistant or drip resistant and it isstrongly recommended that the equipment be stored indoors.If it must be stored outdoors, an adequate covering must beprovided to protect the equipment from the weather.DANGERHazardous voltages.Will cause death, serious personal injury orproperty damage.Before using external source to energize spaceheaters, disconnect space heater circuit from normalsupply to prevent back-energization of control powertransformer.