SwitchBoards

What is the difference between switchboard and switchgear?

Hi,

I'm not an expert on this but you can check some information about them here:
* http://electrical-engineering-portal.com/down...substations/difference-switchgear-switchboard

Also, from what I found on a comparison from a specific source. They defined it as:

SWITCHBOARD. A large single panel, frame, or assembly of panels on which are mounted on the face, back, or both, switches, overcurrent and other protective devices, buses, and usually instruments. Switchboards are generally accessible from the rear as well as from the front and are not intended to be installed in cabinets. Switch Board (OR Swith Panels) is used for Power Voltage (380V) , Low Volage and Extra Low Voltage (LV,ELV) Systems are used

SWITCHGEAR.A general term which covers switching and interrupting devices and their combination with associated control, metering, protective and regulating devices.
Switch Gear is used for Medium Voltage (+6.6KV) or Higher Voltage Systems (MV,HV,EHV) are used.

Hope this helps,

Switch gear means switches, circuit breakers, isolators and other switching apparatus. Switch board is a place where all the apparatus are housed in one place.

Switchgear and switchboard structures are built and tested to different standards: Switchgear to ANSI standard C37.20.1, UL standard 1558, and NEMA standard SG-5; Switchboards (https://bit.ly/2zwKwwv) to NEMA PB-2, and UL -891.

Switchgear incorporates only low-voltage power circuit breakers (LVPCB) which conform with ANSI C37.13 , NEMA SG-3 and are listed per UL-1066, whereas switchboards may include any combination of protective devices including insulated case (ICCB), molded-case circuit breakers (MCCB) listed per UL-489, fusible switches listed per U L-508 and 977 and power circuit breakers listed to UL-106 6.

Unfused switchgear is short circuit tested at 15% power factor for a full 30 cycles, while switchboards are tested at 20% power factor for only 3 cycles.