Architectural Abbreviations and Acronyms
- SWBDSwitchboard
- SWCHSwitch
- SWERSingle Wire Eauth Return
- SWGRSwitchgear
- SWLSafe Working Load
- SWOVSwitchgear
- SWPSafe Working Pressure
- SWSTSwitching Station
- SWVPSoil Waste and Vent Pipe
- SXService
- SXNSection
- SXNSuction
- SYSquare Yard
- SYSystem
- SYMSymmetrical
- SYMSymmetric
- SYMMSymmetrical
- SYMMETRSymmetrical
- SYNSynthetic
- SYNTHSynthetic
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