Arc Fault Containment
 NHP, in conjunction with Cubic, recognised the unique need in the local market for arcing
fault containment. Australia and New Zealand have annexures in their switchboard
standards specifically covering containment of internal arcing faults. In order to comply
with the requirements of the arcing fault containment requirements in AS.3439.1. 2002,
Annex ZD, NHP and Cubic engineers have developed the necessary parts to include in
standard Cubic designs.
Using Terasaki circuit breakers, NHP conducted a series of arcing fault containment tests
at a NATA-recognised test laboratory. The results of this testing program mean that Cubic
assemblers will have access to a type-tested, arc fault contained modular
switchboard system. End-users and electrical consultants can therefore have confidence
in the Cubic modular system, knowing that it is a proven design, extensively type tested
and with the addition of internal arcing fault containment, provides an additional level of
security for switchboard operators.
Switchboard manufacturers have the benefit of a fully modular, type-tested system,
supported by NHP’s extensive distribution network and technical support and now with
the added security of arcing fault containment the Cubic offer is even further enhanced.
Arcing-fault test, according to: AS/NZS 3439.1: 2002, Annex ZD
Test object: Cubic switchboard with fixed, demountable (plug-in)
and withdrawable units
MCCB sizes: 100 - 800 A
Test kA: 65 kA @ 415 V AC
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