AS/NZS 3439.3:2002 Low-voltage switchgear and controlgear assemblies -Part 3: Particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in places where unskilled persons have access for their use - Distributio

Abbreviation: AS/NZS 3439.3:2002
Valid from: 10/12/2002

Information provider: Standards New Zealand,
Author: Standards New Zealand, Standards Australia
Information type: New Zealand Standard,
Format: PDF, HARD COPY,

Cited By: This resource is cited by 1 document (show Citations)

Description

This Standard specifies supplementary requirements to AS/NZS 3429.1 for enclosed distribution boards containing protective devices and intended for installation in places where unskilled persons have access for their use.

Reproduced from IEC 60439-3 consolidated edition 1.2, which incorporates its Amendment 1:1993 and amendment 2:2001 into IEC 60439-3:1990. Contains variations for Australian and New Zealand conditions.

Scope

This standard gives supplementary requirements for such enclosed distribution boards (DBU), which are stationary, assemblies (TTA and PTTA) containing protective devices and intended for use either in domestic (household) applications or in other places where unskilled persons have access for their use. Control and/or signalling devices may also be included.

They are for use on a.c., with a nominal voltage to earth not exceeding 300 V. The outgoing circuits contain short-circuit protective devices, each having a rated current not exceeding 125 A with a total incoming load current not exceeding 400A.

Unskilled persons normally have access to these assemblies, e.g. for switching operations and for replacing fuse-links.

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