Code/Law Flashcards
What does ANSI stand for?
American National Standards Institute
What is the purpose of ANSI?
Set GUIDES for standardized codes and practices
What does NEC stand for?
National Electrical Code
What is Article 90.1 in NEC about?
General requirements for electrical installations
What is the focus of Article 300 in NEC?
Wiring methods
Fill in the blank: Class 1, 2, 3 circuits are covered under NEC article ______.
725
What does Article 760 in NEC refer to?
Fire protective signaling circuits
What is the focus of Article 770 in NEC?
Fiber optic cable
What does Article 800 in NEC cover?
Communication circuits (utilities)
What is the significance of the terms ‘Shall’ and ‘Shall not’ in NEC?
Mandates permissive roles in regulations
Fill in the blank: Installation should use UL ______ equipment.
approved
What does ‘UL’ stand for?
Underwriters Laboratories
What is meant by ‘standardized design’ in ANSI guidelines?
A design that follows established standards for consistency
What is the role of ANSI in relation to electrical standards?
To create and maintain standards for safety and quality
What is the maximum voltage for Class 2 conductors?
30V
Class 2 conductors cannot exceed this voltage threshold.
What must Class 3 conductors be separated by?
Barrier
Class 3 conductors cannot be run without being separated by a barrier.
What is the minimum rating for non-fire-rated boxes?
24’
Minimum requirement unless otherwise listed or protected.
What is the formula for calculating voltage in an electrical circuit?
V = IR
V represents voltage, I represents current, and R represents resistance.
What is the maximum voltage for Class 2 circuits?
150V
This applies to specific conditions outlined in electrical codes.
True or False: Single conductors must be in a conduit, raceway, or enclosure.
True
This is a requirement for proper installation.
Fill in the blank: Class 3 conductors can be run without _______.
separation
Class 3 conductors do not have the same separation requirements as Class 2.
What is the power rating for a device operating at 120V and 100 VA?
1W
This indicates the device’s power consumption.
What is the characteristic of Class 1 conductors?
Associated with Class 1 circuits
These conductors have specific limitations and requirements.
What is the maximum allowable current for a device rated at 100 MP?
10 mA
This indicates the safe operational limit for the device.
What is the designation for the conductor rated at 600V?
C1
This designation is important for compliance with electrical standards.
What does ‘RATTOLE’ refer to in electrical terminology?
Not defined
The term appears to be a typographical error or misrepresentation.
What is the role of a barrier in Class 3 circuits?
Separation
Barriers ensure safety and compliance with installation standards.
What is the maximum distance for unlisted cabling from PoE?
50’
Unlisted cabling refers to exterior cabling or utility cabling.
What is the minimum separation required for communication cables from lightning conductors?
6’
This requirement helps reduce the risk of damage from lightning strikes.
What is the maximum distance for a primary protector group?
20’
This distance is critical for ensuring effective protection against surges.
Communication cables must maintain a separation of _______ from electric power or Class 1 circuits.
2”
What is the code section related to the entrance for cabling?
800.2
Which code section addresses the maintenance of separation from lightning conductors?
800.63
What types of conductors are mentioned in the context of lightning protection?
Ligatnine conductors
What is the requirement for unlisted cabling in an enclosure?
Panted inside up to 50’ from PoE
What does ‘POE’ stand for in the context of cabling?
Power over Ethernet
What is the first step in dividing fractions?
Invert the divisor and multiply
This means that for fractions A/B and C/D, the operation A/B ÷ C/D becomes A/B × D/C.
In the equation A/B = C/D, what does A represent?
The numerator of the first fraction
A is the top number in the fraction A/B.
What does the notation 10^-1 equal?
0.1
This is based on the rule of exponents where a negative exponent indicates the reciprocal.
Fill in the blank: In the division of fractions, the expression A/B ÷ C/D is equivalent to A/B × _______.
D/C
True or False: When dividing fractions, you multiply the numerators and then the denominators.
True
This is a fundamental property of fraction division.
What is the result of multiplying 10 by itself twice?
1000
This is calculated as 10 × 10 × 10.
What does the term ‘positive’ imply in mathematical operations?
A number greater than zero
Positive numbers are used in various mathematical contexts.
In the context of fractions, what does ‘double’ refer to?
Multiplying by two
This can apply to both the numerator and denominator.
If A/B = C/D, what can be inferred about the relationship between A, B, C, and D?
The cross products are equal (A × D = B × C)
This is known as the cross-multiplication property.
Fill in the blank: The expression 10^0 equals _______.
1
What does MARIC stand for?
MARIC stands for a measurement system or unit related to electrical parameters.
The exact meaning of MARIC is not given; further context may be needed.
What is the value of MEGA in terms of power of ten?
MEGA = 10^6
MEGA represents one million, commonly used in measuring data sizes.
What is the value of KILO in terms of power of ten?
KILO = 10^3
KILO represents one thousand.
What is the value of AMP in terms of power of ten?
AMP = 10^0 = 1
AMP represents one Ampere, the unit of electric current.
What is the value of MILLI in terms of power of ten?
MILLI = 10^-3 = 0.001
MILLI represents one-thousandth.
What is the value of MICRO in terms of power of ten?
MICRO = 10^-6 = 0.000001
MICRO represents one-millionth.
What is the value of NANO in terms of power of ten?
NANO = 10^-9 = 0.000000001
NANO represents one-billionth.
What is the formula for calculating Voltage (V)?
V = CURRENT x RESISTANCE
This formula is derived from Ohm’s Law.
What is the Series Circuit Law regarding Voltage?
V_total = V1 + V2 + V3 + …
In a series circuit, the total voltage is the sum of the individual voltages.
What is the Series Circuit Law regarding Current?
I_total = I1 = I2 = I3 = …
In a series circuit, the current remains the same through all components.
What is the formula for calculating Power (P) in a series circuit?
P_total = P1 + P2 + P3 + …
In a series circuit, the total power is the sum of the individual powers.
What is the formula for voltage in a circuit?
E = l • R
Calculate the voltage if the current is 4.5 A and resistance is 70 Ω.
€ = 4.5 • 70
This calculation results in € = 315 V.
In parallel circuits, the total current is _______.
additive
What is the formula for total power in a parallel circuit?
Pr = P1 + P2 + P3
True or False: In a parallel circuit, the voltage across all components is the same.
True
If the resistance in a parallel circuit is lower than any individual load, what can be concluded?
The total resistance is lower than any load.
What does ‘CIS APOrTIVE’ likely refer to in the context of circuits?
It refers to the additive property of currents in a parallel circuit.
Fill in the blank: The formula for calculating total resistance in parallel circuits is _______.
1/R = 1/R1 + 1/R2 + 1/R3
What is the significance of the term ‘R’ in electrical equations?
Resistance
What is the calculated value of 2401 given the context?
6857
What does ‘SA F’ likely indicate in electrical terms?
It may refer to a specific function or measurement, context needed.
