AS/NZS 3000:2018

Cl 4.5.2.3, Figure 4.9 and Table 4.3

Recessed luminaire classes, where each may go, and the default clearances

The downlight clearance tool reads whether insulation may abut or cover each class, the classes each installation may take, and the default clearances for a lamp up to 100 W.

已核验：对照印刷版标准阅读，页码 230–233, 237–242 (PDF = page + 4)。检查于 1 Oct 2026。

单位：Surface limit C C, Mounting limit C C, Value mm mm, Max lamp W W

这些是 AmpSize 所编码的数值。不转载标准原文。请依据现行标准核对。

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Cl 4.5.2.3, Figure 4.9 and Table 4.3, Recessed luminaire classes, where each may go, and the default clearances
Kind	Abutted	Covered	With insulation	Surface limit C	Mounting limit C	Clause	Page	Jurisdiction	Installation	Classes	As	Value mm	Max lamp W	Value W
class	no	no	no	—	90	Table 4.3	238
class	no	no	yes	—	90	Table 4.3	238
class	yes	no	yes	90	90	Table 4.3	239
class	yes	no	yes	135	90	Table 4.3	240
class	yes	yes	yes	90	90	Table 4.3	241
class	yes	yes	yes	90	90	Table 4.3	241
class	no	no	no	—	—	Table 4.3	242
permitted						4.5.2.3.5(a)(i)	237	au	residential	do-not-cover, ca90, ic, ic4
permitted						4.5.2.3.5(a)(ii)	237	au	non‑residential	non‑ic, do-not-cover, ca90, ic, ic4
permitted						4.5.2.3.5(b)(i)	237	nz	residential	ca90, ca135, ic, ic4
permitted						4.5.2.3.5(b)(ii)	237	nz	non‑residential	non‑ic, do-not-cover, ca90, ca135, ic, ic4
legacy						4.5.2.3.5 Exception (a)	237				ca90
legacy						4.5.2.3.5 Exception (b)	237				ca135
legacy						4.5.2.3.5 Exception (c)	237				ic
legacy						4.5.2.3.5 Exception (d)	237				ic4
clearance						Figure 4.9	231					100	100
clearance						Figure 4.9	231					100	100
clearance						Figure 4.9	231					100	100
clearance						Figure 4.9	231					50	100
rule						4.5.2.3.2	232							—
rule						4.5.2.3.3(a)(viii)	233							100
rule						4.5.2.3.3(a)(ii)	232							—

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Cl 4.5.2.3, Figure 4.9 and Table 4.3

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