why mcc panels should be put in a pressurised container?

A motor control center (MCC) is an assembly to control some or all electric motors in a central location. It consists of multiple enclosed sections having a common power bus and with each section containing a combination starter, which in turn consists of motor starter, fuses or circuit breaker, and power disconnect.  A motor control center can also include push buttons, indicator lights, variable-frequency drives, programmable logic controllers, and metering equipment. It may be combined with the electrical service entrance for the building.
MCC's are typically found in large commercial or industrial buildings where there are many electric motors that need to be controlled from a central location, such as a mechanical room or electrical room.
A motor control center panel (MCC Panel) is an assembly of one or more enclosed sections having a common power bus and principally containing motor control units. As those electric elements inside MCC panels are not EX approved, In some conditions, such as hazardous zones in FPSO, MCC panels have to be put in pressurised enclosure / containers for safely work. Pressurised containers are composed of CPFG, fire & gas detectors, pressurised blower fan, pressure difference gauge, control panels, etc. which will create a positive pressure working environment inside for the MCC panels by blowing fresh air when the MCC panels are installed inside. TLS offshore containers international is a professional containerised solution provider with tens of years’ experience in this area. TLS teams are eager to give professional support to worldwide clients by providing premium quality containerised solutions.
Please contact us sales@tls-containers.com for more information.