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Baraka John

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Q: Why is space factor important for conduit?
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What are the main principles concerning conduit bodies?

Conduit bodies are used to provide pulling access in a run of conduit, to conserve space where a full size bend radius would be impractical, to allow more bends to be made in a section of conduit or to split a conduit path into multiple directions.


Is it legal to support a conduit from another conduit of the same size?

No, the conduit has to be supported individually from a supportive structure. The spacing of the strapping is related to the size of the conduit.


What is the different between steel conduit over plastic conduit?

Steel conduit weighs more, provides more protection, and costs more than plastic conduit. Plastic conduit weighs less, is easier to work with, and costs less than steel conduit.


What is the IEE regulations on space factors in conduits and ducts?

This topic is covered in the IEE's On-Site Guide, a supplement to BS 7671:2008 Regulations for Electrical Installations.'Grouping' describes to the mutual heating effect of adjacent conductors. The effect of grouping acts to reduce the number of cables actually allowed into an enclosure because, as the number of circuits increases, the current-carrying capacity of the cables reduces -requiring the use of cables with larger cross-sectional areas! And using cables with larger cross-sectional areas may then require us to use larger-diameter conduit.In practice, this might also mean distributing the cables between, say, two smaller conduits (or by using a small trunking system).Guidance in this is provided by an equation called a space factor, where:space factor = [(csa of all cables)/(internal csa of conduit)] x 100 %...where the maximum permissible space factor is 40%. In other words, the area of the cables must not exceed 40% of the internal cross-sectional area of a conduit. The 60% empty-space requirement is intended to enable the dissipation of the heat produced by the current-carrying conductors grouped inside the conduit.


What do conduit connectors do?

A conduit connecter is a connecting piece used to connect two individual conduit units together. Conduit connecters can refer to both electrical conduits and pipe/plumbing related conduits.

Related questions

What are the main principles concerning conduit bodies?

Conduit bodies are used to provide pulling access in a run of conduit, to conserve space where a full size bend radius would be impractical, to allow more bends to be made in a section of conduit or to split a conduit path into multiple directions.


Do you need a conduit engine on your computer?

No you do not need one unless you need Conduit powered apps. A Conduit Engine is the module of Conduit Open that allows users to add apps directly to their browser without a community toolbar. It offers you an important new distribution option for your Conduit-powered offerings.


What is the Spacey Factor?

the spacious factor set in a space and or in space.


An important factor NASA engineers must consider when preparing to send a Shuttle into space is?

The weight of the shuttle which will be send


What is conduit wiring?

Conduit wiring is synonymous to wires in a pipe.


What size conduit for 400amps?

The sizing of conduit systems that wire has to be pulled into is dependant on the physical size of the conductor being drawn into the conduit. The second governing factor is the conductor count of the specific conductor that is needed. A 500 MCM copper conductor with an insulation factor of 90 degrees C is rated at 430 amps. This is where the conductor count is need by the service, as to whether the service is single or three phase. In this specific case, the electrical code will allow both single and three phase installations to use the same size conduit. A maximum total of four 500 MCM conductors can be drawn into a 78 mm diameter conduit.


Which factor is most important in determining how much groundwater can be stored in underground rock?

Porosity - how much open space between grains.


Which conduit is best - PVC or MS conduit?

For underground conduit runs, PVC is by far the better of the two conduit systems.


When did The Conduit happen?

The Conduit happened in 2009.


Is it legal to support a conduit from another conduit of the same size?

No, the conduit has to be supported individually from a supportive structure. The spacing of the strapping is related to the size of the conduit.


When might you use a slimline form factor?

When space maximization is a factor.


What is the different between steel conduit over plastic conduit?

Steel conduit weighs more, provides more protection, and costs more than plastic conduit. Plastic conduit weighs less, is easier to work with, and costs less than steel conduit.