

35
Solutions for
continuity of service
in electrical installations with Prisma
See the solution guide
“Solutions for Continuity of
Service in Prisma electrical
installations”
(COM-POWER-LVIS01EN).
The right level of continuity of service
All organizations have some sensitivity to the continuity of service of electrical power.
For some power is a vital component to their ongoing success and viability.
The required level of continuity of service must be considered for each application so that the electrical installation
can be optimised accordingly.
The stakes of continuity of service are high. Even a brief electrical distribution failure can have serious
consequences on many activities.
Continuity of service solutions for Operation, Maintenance, Evolution
All solutions proposed comply with standards EN 61439-1 and EN 61439-2.
The system solutions proposed include Schneider Electric products exclusively to fully ensure compatibility and
operation.
To ensure safety, solutions with switchgear mounted on plug-in bases, withdrawable chassis and disconnectable or
withdrawable mounting plates include safety trip levers that open the circuit breaker if it is removed in closed
position.
Solutionguide
2012
Solutions for
Continuityof Service
in Prisma Plus
electrical installations
safety trip levers
safety trip levers
For highest continuity of services
Functional units with devices on
live-disconnectable mounting plates
Disconnectable IS 223:
(correspondence
with standard
IEC61439-2: WFD
)
>
High continuity of service
>
Maximum time to restore power
after maintenance: 1 CEhour
>
Live upgrading.
Functional units with devices on
live-withdrawable mounting plates
Disconnectable IS 233:
(correspondence
with standard
IEC 61439-2 : WWW
)
>
High continuity of service
>
Maximum time to restore power after
maintenance: 1/4 h
>
Live upgrading.