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Do-It-Yourself (DIY) Question & Answer Forum
Instant Water Heater Behind Partition (Tool), Isolator Location?
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<blockquote data-quote="jason1958" data-source="post: 348901" data-attributes="member: 12890"><p>An isolator outside the enclosure (partition containing water heater) provides little value - it just seems <em>traditional</em> as with conventional electric showers <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Skilled:</p><p></p><p>- Isolation can be handled by a main switch or CPD (w/lockoff).</p><p></p><p>- Mechanical maintenance <u>could</u> use the CPD (w/lockoff), but frankly a local isolator makes sense here re "lights still on" servicing etc.</p><p></p><p>Emergency:</p><p></p><p>- Emergency is handled by the RCBO re EF OC SC faults.</p><p></p><p>End User:er</p><p></p><p>- Functional switching is handled by the device itself.</p><p></p><p>- MI simply say 3mm gap re main switch (no specification of a local isolator)</p><p></p><p>End User is left to interact with a wireless/SELV digital device.</p><p></p><p>It seems only a cooker actually requires specific local isolation by regulations (historically very logical re fires), rest comes down to MI.</p></blockquote><p></p>
[QUOTE="jason1958, post: 348901, member: 12890"] An isolator outside the enclosure (partition containing water heater) provides little value - it just seems [I]traditional[/I] as with conventional electric showers :-) Skilled: - Isolation can be handled by a main switch or CPD (w/lockoff). - Mechanical maintenance [U]could[/U] use the CPD (w/lockoff), but frankly a local isolator makes sense here re "lights still on" servicing etc. Emergency: - Emergency is handled by the RCBO re EF OC SC faults. End User:er - Functional switching is handled by the device itself. - MI simply say 3mm gap re main switch (no specification of a local isolator) End User is left to interact with a wireless/SELV digital device. It seems only a cooker actually requires specific local isolation by regulations (historically very logical re fires), rest comes down to MI. [/QUOTE]
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Instant Water Heater Behind Partition (Tool), Isolator Location?
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