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<blockquote data-quote="sailfish" data-source="post: 4931574" data-attributes="member: 53248"><p>Inadequate ampacity from improper conductor sizes or overcurrent protection is a common offender I come across. This can cause fires and breakers that will never trip. Overpacked junction boxes can lead to kinked wires, skinned insulated, screws through wires, and heat buildup which will also reduce a conductor's ampacity. I've seen box connectors clamped too tight onto romex, which can eventually rub through into the wire; best case scenario is looking for a hellishly difficult short, worst case is a blatant fire hazard. Sheathed wire ran inside of conduit can build up excess heat depending on what it is powering. Some scenarios necessitate installation of a new circuit or the changing of a breaker on a live panel; if the panel is a rat's nest piece of <img src="/community/styles/default/xenforo/smilies/group1/censored2.gif" class="smilie" loading="lazy" alt=":censored2:" title="Censored2 :censored2:" data-shortname=":censored2:" /> it will be difficult to find adequate clearance to work around energized parts. BX and MC that is twisted or kinked can separate and expose high voltage wires and touch them against the sharp metal edges of the armor. Boxes with wires that were cut too short can make it difficult to ensure proper splice connections which in turn can burn up components from excessive amp draw (plus they're a complete pain in the ass). Some of the stuff I can think of off the top of my head at least. But I know there's more.</p></blockquote><p></p>
[QUOTE="sailfish, post: 4931574, member: 53248"] Inadequate ampacity from improper conductor sizes or overcurrent protection is a common offender I come across. This can cause fires and breakers that will never trip. Overpacked junction boxes can lead to kinked wires, skinned insulated, screws through wires, and heat buildup which will also reduce a conductor's ampacity. I've seen box connectors clamped too tight onto romex, which can eventually rub through into the wire; best case scenario is looking for a hellishly difficult short, worst case is a blatant fire hazard. Sheathed wire ran inside of conduit can build up excess heat depending on what it is powering. Some scenarios necessitate installation of a new circuit or the changing of a breaker on a live panel; if the panel is a rat's nest piece of :censored: it will be difficult to find adequate clearance to work around energized parts. BX and MC that is twisted or kinked can separate and expose high voltage wires and touch them against the sharp metal edges of the armor. Boxes with wires that were cut too short can make it difficult to ensure proper splice connections which in turn can burn up components from excessive amp draw (plus they're a complete pain in the ass). Some of the stuff I can think of off the top of my head at least. But I know there's more. [/QUOTE]
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