Building Code Definitions

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H

heating month

, in relation to a location, means a month in which a base temperature of 14°C is greater than the mean (calculated using the approved temperature data) of the outdoor temperatures at that location during that month

household unit

means any building or group of buildings, or part of any building or group of buildings, used or intended to be used solely or principally for residential purposes and occupied or intended to be occupied exclusively as the home or residence of not more than one household; but does not include a hostel or boardinghouse or other specialised accommodation

hvac system

, for the purposes of performance H1.3.6 and in relation to a building, means a mechanical, electrical, or other system for modifying air temperature, modifying air humidity, providing ventilation, or doing all or any of those things, in a space within the building

I

illuminance

the luminous flux falling onto a unit area of surface

impact insulation class (iic)

a single number rating derived from measured values of normalised sound pressure impact levels in accordance with Method ASTM E492, Annex A1. Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using the Tapping Machine. It provides an estimate of the impact sound insulating performance of a floor-ceiling assembly

impervious

that which does not allow the passage of moisture

insulation

in the context of fire protection, the time in minutes for which a prototype specimen of a fire separation, when subjected to the standard test for fire resistance, has limited the transmission of heat through the specimen

integrity

in the context of fire protection, the time in minutes for which a prototype specimen of a fire separation, when subjected to the standard test for fire resistance, has prevented the passage of flame or hot gases

intended use

, of a building includes—

(a) any reasonably foreseeable occasional other use that is not incompatible with the intended use; and

(b) normal maintenance; and

(c) activities taken in response to fire or any other reasonably foreseeable emergency—but does not include any other maintenance and repairs or rebuilding

N

network utility operator

means a person who—

(a) undertakes the distribution or transmission by pipeline of natural or manufactured gas, petroleum, or geothermal energy; or

(b) is an electricity operator or an electricity distributor as defined by section 2(1) of the Electricity Act 1992 for the purposes of any works as defined by that Act; or (c) undertakes the piped distribution of potable water for supply; or

(d) is the operator of a sewerage system or a stormwater drainage system

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