Jim Port
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Everything posted by Jim Port
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Table 9 of the NEC has the allowable fill charts.
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Thanks Marc. It's packed way beyond 40%, that's for sure. You cannot base the percentage of fill on looks. Using the figures posted by bricc you can still have another 2 conductors before being overfilled.
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The cord is a means of disconnect. If the unit is hardwired a breaker lock is required for the DW. If the WH is within sight of the panel it does not require an additional disconnect. If not in sight of the panel a local disconnect is required.
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It is an inlet so someone does not use a suicide cord to feed power back into the panel. Was there an interlock on the panel?
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Article 334 is for NM cable and does not apply. Article 356 or 350 applies. Within 12" of the box and no more than 3' between .
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Under the older code that allowed a 3 wire feeder, the neutral was bonded to ground like a service panel.
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P There is no issue if it is protected. It is allowed by code.
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It comes down to the skill or lack of skill on the drywallers. Even a good drywallers can't make up for a box that is too deep or a too shallow ring. A 1/2" ring in 1/2" drywall is not thick enough to be flush. If the installer goes crazy with the Rotozip, all bets are off. If someone add a layer of tile over the drywall it gets even worse.
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You are right Kurt, after 30 plus years, 25 with a Masters license, there is no way I would know what a plaster ring is.
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The hole can be cut too big regardless of the wiring method and materials used. Certainly not a compelling reason for conduit.
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Drywall is considered a noncombustible material. Firewalls are made of drywall. Not much point of something designed to contain fire if it were combustible. In a combustible finish the box must be flush or proud of the surface. Any gaps larger than 1/8" need to be repaired based on the NEC. Box extenders like BE-1 from Arlington can be easily installed .
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If this was so much of an issue I am sure that the NEC would have addresses this somewhere along the line.
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The pendant light is clearly prohibited. The airspace above the footprint is also included. The footprint of the tub is less defined as it leaves room for interpretation if it includes the surrounding deck. That might be hard to argue, especially if that is only a tub, which it looks like based on the wall and window finishes. The sames issues could happen with a receptacle installed in a code compliant location 1/16" outside the footprint.
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It has more to do with the code requirement to keep the unfused service cables as short as possible. After an disconnect with OCP is provided the cables can be as long as needed to run to each unit.
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The disconnect will typically be near the meters for a condo.
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You can see the slot cut in the flange on the sides of the box to accommodate the deadfront divider.
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Is that the ground connected on the left pipe above the level of the pressure reducer?
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Even a duplex 15 amp receptacle is rated for 20 amp feedthrough. Also see JK's response above. Twenty amp devices are not usually needed.
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From Southwire, http://www.southwire.com/products/ACSR.htm
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I would say that is a disconnect, not a transfer switch.
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The main counts as two.
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Thanks for posting that Jim. It seems outdated with 30 circuit 100 amp panels and even more so with the 42 circuit limit removed.
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The panel listing is used, not an arbitrary formula that assumes a load of 10 amps per pole.
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It does not matter if the breakers are not all used. Assuming that is a 42 slot panel manufactured pre-2008 or manufactured to the 42 slot limit (which most are) then tandem breakers cannot be used. I took Jacks post to be saying that it would be simple to fix the issue as the tandems could be removed and the spare single poles utilized.
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? It was not wrong to call out the panel for too many breakers. That panel pre-dates the lifting of the 42 circuit limit in the NEC. The maximum number of breakers can be discerned from the model number. Even with the limit removed the panel still must be installed as designed and listed. The unlimited number does not apply retroactively.