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New Mexico ES-3 Low Voltage Contractor EXAM QUESTIONS AND CORRECT VERIFIED SOLUTIONS LATEST UPDATE THIS YEAR – JUST RELEASED.pdf

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Tap on AVAILABLE IN BUNDLE/PACKAGE DEAL to unlock free bonus exams – save more while you get what you need. The New Mexico ES-3 Low Voltage Contractor Exam Questions and Correct Verified Solutions – Latest Updated Edition is a comprehensive study resource designed to help candidates prepare for the New Mexico ES-3 Low Voltage Special Systems contractor classification and the associated licensing and examination requirements administered through the New Mexico Regulation and Licensing Department (RLD) and PSI. New Mexico's ES-3 classification covers low-voltage special systems operating at 50 volts or less at commercial and residential locations. The scope includes telecommunications, fire alarm systems, CATV, audio and visual systems, security systems, door and gate control circuits, temperature-control circuits, cabling, interconnections, and other qualifying low-voltage specialty systems. The classification requires two years of experience. The resource covers major ES-3 examination and trade-knowledge areas, including low-voltage wiring methods, cable selection, communications systems, fire alarms, security systems, CATV, audio/video installations, control circuits, grounding and bonding, raceways and pathways, cable support, terminations, equipment connections, testing, troubleshooting, safety, and applicable New Mexico requirements. A major section focuses on low-voltage system fundamentals, including voltage and current concepts, circuit continuity, polarity, resistance, power supplies, transformers, signal transmission, circuit protection, and proper identification of conductors and cables. The guide also covers telecommunications and structured cabling, including cable types, pathways, termination methods, connectors, equipment rooms, patch panels, labeling, separation from power wiring, and installation practices for residential and commercial communications systems. Fire alarm systems receive dedicated attention, including initiating devices, notification appliances, control panels, signaling circuits, power supplies, wiring methods, supervision, testing, troubleshooting, and coordination with applicable fire-protection requirements. The material also addresses security systems, including intrusion detection, access control, sensors, door and gate controls, alarm circuits, low-voltage power supplies, communication pathways, and system interconnections. Another important area is CATV and audio/video systems, covering coaxial cabling, signal distribution, connectors, grounding considerations, equipment connections, structured wiring, and installation practices. The resource reinforces low-voltage control circuits, including temperature-control systems, door and gate operators, control wiring, relays, sensors, and other specialty circuits operating within the ES-3 scope. Candidates also review cable installation and support, including routing, securing, protection from physical damage, penetrations, firestopping, separation from other systems, bend-radius considerations, labeling, and proper termination. A substantial section addresses grounding and bonding. Learners review when grounding or bonding is required, equipment grounding concepts, bonding of applicable equipment, grounding of communications systems, and coordination between low-voltage systems and building electrical infrastructure. The guide also covers raceways, boxes, pathways, and enclosures, including appropriate installation methods, accessibility, conductor protection, support, fill considerations, and separation requirements. The resource emphasizes an important scope distinction: ES-3 is a low-voltage special-systems classification and does not authorize general electrical work simply because a system operates at a lower voltage. New Mexico's classification language specifically defines ES-3 around qualifying special systems operating at 50 volts or less. The preparation material also covers testing, commissioning, troubleshooting, and maintenance, helping candidates determine appropriate procedures when a low-voltage system experiences open circuits, shorts, loss of communication, power-supply problems, faulty devices, or improper terminations. For licensing preparation, candidates should understand New Mexico's Qualifying Party (QP) process. The RLD explains that a QP applicant must meet the required experience, pass the examination applicable to the classification, and satisfy the applicable Business & Law requirement or approved-course alternative. Applicants must be preapproved before scheduling examinations. Current PSI information confirms that New Mexico construction examinations are administered by PSI, and applicants must be approved before testing. Passing examination scores are valid for one year. The guide also reinforces New Mexico licensing compliance. The RLD states that contracting without a required license is unlawful and that the Division may stop unlicensed work and pursue criminal enforcement. For current preparation, candidates should verify the applicable PSI Candidate Information Bulletin and New Mexico Administrative Code classification requirements before testing, particularly because examination references and regulatory requirements can be updated. The RLD currently identifies the 2020 New Mexico Electrical Code/National Electrical Code as the adopted electrical code, with New Mexico amendments in NMAC 14.10.4. The resource should be treated as a study and practice resource rather than an official or leaked PSI examination. Claims that third-party materials contain “actual,” “verified,” or “just released” examination questions should not be interpreted as confirmation that they reproduce the secure ES-3 examination. Aligned with the current New Mexico ES-3 Low Voltage Special Systems classification, this study guide supports preparation in telecommunications, fire alarm systems, CATV, audio/video, security systems, access control, door and gate controls, temperature controls, low-voltage cabling, grounding and bonding, raceways, cable support, terminations, testing, troubleshooting, safety, and New Mexico licensing requirements. Ideal for New Mexico low-voltage contractors, telecommunications installers, security-system technicians, fire-alarm professionals, structured-cabling technicians, electrical professionals, and candidates preparing for the ES-3 contractor classification, this resource provides focused review material, exam-style practice questions, and solution explanations to support effective licensing preparation.

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Page 1 of 108


New Mexico ES-3 Low Voltage Contractor EXAM QUESTIONS
AND CORRECT VERIFIED SOLUTIONS LATEST UPDATE THIS
YEAR – JUST RELEASED

10-Line Exam Coverage in Points Form
1. Scope of Work – Permitted to install and service low-voltage special systems (≤50 V)
including fire alarms, security systems, CATV, telecom/data cabling, sound/audio,
door/gate controls, temperature controls, and fiber optics; also includes trenching,
backfilling, boring, shoring, and compacting for these systems; excludes 120V or higher
circuits (requires EE-98/ER-1) .
2. General Low-Voltage Systems – NEC definitions for Class 1, 2, and 3 circuits (Article
725); power limitations and wiring methods; cable types for plenum (CMP), riser (CMR),
and general use (CM) spaces .
3. Fire Alarm Systems – NEC Article 760 requirements (PLFA/NPLFA); NFPA 72 (National
Fire Alarm and Signaling Code); FPL, FPLR, FPLP cable types; minimum standby battery
capacity (24 hours + 5 minutes alarm) .
4. Grounding & Bonding – NEC Article 250 requirements; electrode types and minimum
sizes; grounding conductor sizing for communications (14 AWG minimum); antenna
grounding (10 AWG copper minimum); grounding rod minimum length .
5. Communications & Data Cabling – NEC Articles 800 (Communications Circuits), 830
(Network-Powered Broadband), 820 (CATV); cable ratings (CMP, CMR, CMG, CMX); fiber
optics (conductive vs. nonconductive); minimum voltage rating for communications
cables (300 V); separation requirements from power conductors .
6. Security & Alarm Systems – System components; power supplies and standby batteries;
notification appliances; control panels; access control systems; integration with fire
alarm systems .
7. CATV & Antenna Systems – NEC Article 820; coaxial cable installations; grounding
requirements; separation from lightning protection systems (minimum 6 feet); direct
burial and overhead cabling requirements .
8. Occupancy & Environmental Classifications – Cable types for plenum spaces
(FPLP/CMP), riser spaces (FPLR/CMR), and general use; wiring methods in existing
raceways; direct burial requirements; above-suspended-ceiling installations .
9. Safety & Installation Standards – NEC 300.4 protection of conductors (1¼-inch from
stud edge); working space requirements (Illumination per 110.26[D]); burial depth for
conduit and warning tape; support methods for cables; bend radius requirements .

, Page 2 of 108


10. Licensing & Business Law – Two years of verifiable experience required; pass both trade
exam (ES-3) and Business & Law exam; $10,000 consumer protection bond; qualifying
party requirements; 90-day grace period for renewal; no CE requirements .




MCQ Questions with Rationales


1. What is the maximum nominal voltage for circuits that an ES-3 contractor is permitted to

install?


A) 24 V

B) 30 V

C) 50 V

D) 120 V


Correct Answer: C

Rationale: The ES-3 classification is defined as "Low Voltage Special Systems (under 50 volts)."

Installations involving 120 V AC require an EE-98 or higher electrical classification .


2. Which New Mexico agency regulates low-voltage contractor licensing?


A) New Mexico Public Regulation Commission

B) New Mexico Construction Industries Division (CID)

C) New Mexico Department of Workforce Solutions

D) New Mexico Energy, Minerals and Natural Resources Department


Correct Answer: B

Rationale: The New Mexico Construction Industries Division (CID) under the Regulation and

, Page 3 of 108


Licensing Department regulates all contractor licensing in the state, including low-voltage

electrical specialties such as the ES-3 classification .


3. How many years of verifiable experience are required to qualify for an ES-3 license?


A) 1 year

B) 2 years

C) 4 years

D) 6 years


Correct Answer: B

Rationale: The ES-3 license requires two years of foreman-level practical or related trade

experience. Accredited training may be substituted at a rate of one-half year of experience per

year of training, but cannot exceed half of the total requirement .


4. What is the minimum age requirement for obtaining an ES-3 contractor license in New

Mexico?


A) 16 years

B) 18 years

C) 21 years

D) 25 years


Correct Answer: B

Rationale: Applicants for any contractor license in New Mexico must be at least 18 years of age .


5. What is the passing score for the NM ES-3 trade exam?

, Page 4 of 108


A) 60%

B) 65%

C) 70%

D) 75%


Correct Answer: C

Rationale: The ES-3 exam requires a passing score of 70% correct .


6. How many questions are on the ES-3 exam?


A) 50

B) 60

C) 80

D) 100


Correct Answer: A

Rationale: The ES-3 Low Voltage exam consists of 50 scored questions .


7. What is the time limit for completing the ES-3 exam?


A) 90 minutes

B) 120 minutes

C) 145 minutes

D) 180 minutes

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