The plastic sheathing also has a very high melting point thus is heat and flame resistant. Splices are done in junction boxes, thus protected from the elements and pests. Plus all the wires needed for a circuit are right there together in one neat package. The very mention of “BX” produces alarm in the eyes and heart of many older electricians and home inspectors, because early versions of BX were deeply flawed.

Older BX cable is substantially different from the new stuff, and is no longer allowed by code, and this is the source of yet more confusion — but we’ll get to that later. Outdoor cable consists of a black PVC jacket which contains the loose strands of fiber along with a ripcord. However, because this cable is an MC cable, surrounding the loose tube fiber is a steel tape. Because this cable is meant for direct burial, the steel tape is meant to add a layer of extra protection. This steel tape is meant to deter outdoor rodents such as moles and gophers from chewing on the cable jackets and ruining the fiber cores inside. Underneath the tape is a water blocking strip that absorbs water and keeps moisture from getting to the fiber cores within.

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However, because the outdoor bx armored cable isn’t fire rated, you’re not allowed to run this cable more than 50 FT indoors. Understanding all electrical cables starts with understanding Romex, a brand name of Southwire that is often used to stand for common nonmetallic (NM) electrical cable. The weaknesses of Romex — namely, its lack of protection against damage and environmental factors — are the positive attributes of metal-armored cable. Whereas Romex is easy to both install and cut or puncture, armored cables are more difficult to use, specifically because they provide their wires more protection. They’re very similar in most regards, but there is one big difference between the two cables. In the electrical world, AC or BX cables do not come with a ground wire while MC cables do.

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• In BX, the ground wire has a plastic protective sheathing, whereas Romex, the copper wire, is bare.
• The ARM instruction set is word-aligned, meaning the least two significant bits 0, and 1 are ignored because they refer to the half-word and byte portion of the address.
• The jacket for indoor fiber also comes in plenum and riser varieties.
• Southwire offers a calculator to demonstrate the supposed labor savings that justify the simpler installation of MCAP versus standard MC wire, which involves one fewer termination per electrical box.
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• Some varieties of MC cable can be used outdoors or even “direct-buried” — that is, buried underground without need for conduit — whereas BX cable cannot be used outdoors at all (via Nassau National Cable).

BX can also be embedded in plaster on masonry and run in the air voids of masonry walls, under raised floors, and in air-handling spaces. You might see raised floors, for example, in churches or data centers. And, again, take note that these allowances don’t apply if any of those spaces are prone to getting wet. It’s simple to what is bx cut, rip, and strip, plus it pulls effortlessly through holes in studs. Older BX wiring does not have to be removed unless the wire coating inside the sheathing is in bad condition.

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If the conduit used is galvanized steel, the benefits are the same as BX, good resistance to puncture, low MF emittance, and good EF shielding. UX covers how a user interacts with a system or some other ‘thing’, for instance a e-commerce site or navigating yourself around a train station. There isn’t single theory in the context of nomenclature – UX and UI started to differentiate in the industry – as occupations or scopes of activities.

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BX vs. MC cable

BX is contrasted with a newer cable, NM, which stands for “non-metallic.” Instead of the metal sheathing, NM has a smooth vinyl covering that is easy to rip and pull through holes in studs. Aligning brand, employee and customer experience is the key to stronger business performance, relative to companies that keep Bx, Ex and Cx siloed. In Part One I discussed knob and tube wiring and the potential problems and issues that may arise if your home still contains legacy knob and tube.

If the architect, owner, or contractor had insisted on BX instead of NM cable, this repair would likely not have been necessary. While Blackstone has a successful track record, it is not immune to risks and challenges. Potential risks include market volatility, economic downturns, regulatory changes, and unexpected events impacting the industries in which the company invests. Blackstone’s risk management strategies and expertise in risk assessment help mitigate these potential challenges. Additionally, the company’s broad investment portfolio and diversified approach provide some level of protection against specific risks. Blackstone has consistently demonstrated mixed financial results, as indicated by its revenue growth over the past few years.

The body of the indoor armored fiber cable is obviously meant for indoor use. It’s designed with a more flexible PVC jacket and is colored depending on the type of fiber mode you purchase. Indoor fiber is usually OM1, OM3, or OM4 fiber, also known as Multimode. The jacket for indoor fiber also comes in plenum and riser varieties. Riser cables are most commonly used and found in areas where cable travels up a building and can be used as the main form of cabling in smaller buildings.