a person who agrees to purchase the finished products or services presented with the prescribed or correct features

The specific grounding and bonding requirements for an information technology room are located in which article of the nec?

Oksi-84 [34.3K]

The specific grounding and bonding requirements for an information technology room are located in Article 645.

<h3>What does NEC stand for?</h3>

The National Electrical Code (NEC) is a collection of requirements for the secure installation of electrical wiring in the US that are routinely updated.

Bonding is the joining of conductors that do not convey current, such as enclosures and buildings. Bonded systems are attached to the earth by grounding. To protect persons and property from electric risks, both are required.

Article 645 compliance is optional. The two main pardons provided by Article 645 are. First, underneath a raised floor, non-plenum-rated cables are acceptable. Second, cables, boxes, and similar items for the mentioned IT equipment are exempt from the need for security. sted IT equipment cables, boxes, and the like are not required to be secured in place.

To learn more about NEC refer to:

brainly.com/question/20348027

#SPJ4

6 0

2 years ago

When you walk down the street, your muscles are supplying you with the

Genrish500 [490]

Your muscles are supplying you with the energy to move through a biological process called <u>metabolism</u>.

<h3>What is metabolism?</h3>

Metabolism can be defined as a set of chemical and biological processes that are carried out by a living organism, in order to sustain life.

A good example of metabolism is the supply of energy by the muscles in the body of a living organism, which enables him or her to move from one point to another.

In conclusion, your muscles are able to supply you with the energy to move through a biological process called <u>metabolism</u>.

Read more on metabolism here: brainly.com/question/1490181

4 0

3 years ago

A low-altitude meteorological research balloon, temperature sensor, and radio transmitter together weigh 2.5 lb. When inflated w

gogolik [260]

Answer:

12 mins

Explanation:

The summation of the forces in vertical direction

= Fb - Fd - w = 0 ∴ Fd = Fb - w ----- ( 1 )

Fb ( buoyant force ) = Pair * g * Vballoon ------- ( 2 )

Pair = air density , Vballoon = volume of balloon

Vballoon = $\frac{\pi D^3}{6}$ , where D = 4 ∴ Vballoon = 33.51 ft^3

g = 32.2 ft/s^2

From property tables

Pair = 2.33 * 10^-3 slug/ft^3

μ ( dynamic viscosity ) = 3.8 * 10^-7 slug/ft.s

<em>Insert values into equation 2 </em>

Fb = ( 2.33 * 10^-3 ) * ( 32.2 ) *( 33.51 ) = 2.514 Ib

∴ Fd = 2.514 - 2.5 = 0.014 Ib ( equation 1 )

Assuming that flow is Laminar and RE < 1

Re = (Pair * vd) / μair -------- ( 3 )

where: Pair = 2.33 * 10^-3 slug/ft^3 , vd = ( 987 * 4 ) ft^2/s , μair = 3.8 * 10^-7 slug/ft.s

Insert values into equation 3

Re = 2.4 * 10^7 ( this means that the assumption above is wrong )

Hence we will use drag force law

Assume Cd = 0.5

Express Fd using the relation below

Fd = 1/2* Cd * Pair * AV^2

therefore V = 1.39 ft/s

Recalculate Reynold's number using v = 1.39 ft/s

Re = 34091

from the figure Cd ≈ 0.5 at Re = 34091

<u>Finally calculate the rise time ( time taken to reach an altitude of 1000 ft ) </u>

t = h/v

= 1000 / 1.39 = 719 seconds ≈ 12 mins

3 0

3 years ago

Radio Frequency IDentification (RFID) tags and readers are a category of low-end wireless devices that people may not recognize

Fittoniya [83]

Answer:

See explaination.

Explanation:

Radio Frequency Identification (RFID) tags and readers uses the electromagnetic waves to identify and track the attached objects.

A tag is attached to the object which is to be identified or tracked, and reader is used to read the response and send the acknowledgement. Therefore, RFID tags and readers are used in many industries, passports, transportations and pet identification etc.

i.

RFID technology is used in smartcards, implants for pets, passports and library books to identify and track the persons, objects and pets etc.

Hence, we can say that option (i) is true.

ii.

Electronic Product Code (EPC) is a small code stored in the RFID tag. The code stored in the memory is 96 bits which are used to identify the organization which manages the data, unique number to identify the product and a number to identify the particular tag and etc.

EPC is a unique identification number, it can read and be written by the RFID reader. It is used in supply chains instead of a bar code even though expansive.

Hence, option (ii) is true.

iii.

Tags are used to identify and track the objects. It doesn’t belong to base stations and access points as a Wi-Fi networks.

Therefore, option (iii) is false.

iv.

The EPC Generation 2 RFID tag is used to improve the security by enabling the authentication features. It is not the similar way of data transmission in the other wireless situations.

Therefore, option (iv) is false.

Finally, the options (i) and (ii) are TRUE, while (iii) and (iv) are FALSE.

8 0

3 years ago

For an applied transformer with a primary winding of 220, a secondary winding of 113 turns, a core of 45 cm2 cross-section and a

Damm [24]

Explanation:

https://www.chegg.com/homework-help/questions-and-answers/iron-core-wish-design-transformer-part-dc-power-supply-moderately-high-current-rating-volt-q53186459?trackid=83dbc34cec2e&strackid=3efc9f324415

8 0

3 years ago

a person who agrees to purchase the finished products or services presented with the prescribed or correct features​

a person who agrees to purchase the finished products or services presented with the prescribed or correct features