Skip to main content
getlicenseready

Colorado Journeyman Wireman Exam Study Resources

Source-linked official information is available below. Other licensing and examination details remain under primary-source review.

Note: Our practice questions are based on NEC 2023.Official Colorado licensing and exam-format details are being verified against primary sources.

Quick Answer

This guide includes source-linked information for Journeyman Wireman. Review the official evidence below for the fields currently confirmed, and use the linked authority sources to confirm any details that remain under review before making plans or paying a fee.

Official Source-Linked Information

We show only fields explicitly supported by current primary sources below. Other official-format fields are withheld when they are incomplete, conflicting, or not published.

Official Journeyman Wireman Information

These are the Colorado fields directly supported by the linked current sources. Other licensing and exam-format details remain under review.

Scored examination block
90 scored items in 240 minutes.
Source: PSI Colorado State Electrical Board Candidate Information Bulletin, updated June 18, 2026
Non-scored block
Up to 10 non-scored items with 30 additional minutes.
Source: PSI Colorado State Electrical Board Candidate Information Bulletin, updated June 18, 2026
Reference policy
Effective 8/1/2026, all examination questions are consistent with the 2026 National Electrical Code book. The 2026 National Electrical Code book and formula page are provided at the test center.
Source: PSI Colorado State Electrical Board Candidate Information Bulletin, updated June 18, 2026
Examination fees
Examination fee $78. Retest fee $73.
Source: PSI Colorado State Electrical Board Candidate Information Bulletin, updated June 18, 2026

Official sources for this guide

How GetLicenseReady Helps You Pass

1

Practice With Real Exam Scenarios

1,600+ practice questions aligned to the NEC 2023 code edition

2

Build NEC Knowledge

Practice using code references and explanations while official reference-material policy is being verified.

3

Track Your Progress

See exactly which topics you've mastered and where you need more practice

4

Detailed Explanations

Every question includes step-by-step solutions with NEC article references

Common Questions About the Colorado Electrician License

Where can I confirm the current Colorado electrician exam requirements?

Confirm current licensing scope, examination format, fees, and scheduling instructions with the applicable Colorado licensing authority before making plans or paying a fee.

NEC Code Study Guides

General NEC study resources. Confirm the current official exam blueprint with the applicable licensing authority.

NEC Article 110, Electrical Installations

Working space clearances (Table 110.26), temperature ratings (110.14), interrupting ratings, and workmanlike execution.

NEC Article 210, Branch Circuits

GFCI, AFCI, circuit ratings, outlet spacing, and the continuous load rule.

NEC Article 220, Load Calculations

Step-by-step residential standard and optional methods with worked examples.

NEC Article 230, Services

Overhead clearances, 6-disconnect rule, minimum 100A service, and disconnect location.

NEC Table 310.16, Wire Sizing & Ampacity

Temperature columns, correction factors, adjustment factors, and NEC 240.4(D).

NEC Article 430, Motors

Conductor sizing, SCGF protection at 250%, overload protection, and disconnect rules.

NEC Article 240, Overcurrent Protection

Standard breaker ratings, 240.4(D) small conductors, and the 10-foot and 25-foot tap rules.

NEC Article 250, Grounding & Bonding

Grounding electrode system, bonding jumpers, and equipment grounding conductors.

NEC 314.16, Box Fill Calculations

Five volume categories, cubic-inch table, and exam-style worked examples.

NEC Chapter 9, Conduit Fill

Tables C1–C12, 40% fill rule, and how to size conduit for mixed wire bundles.

Electrician Exam Math: Complete Formula Guide

Ohm's Law, power wheel, voltage drop, three-phase power, and transformer calculations with worked examples.

NEC Article 300, Wiring Methods

Physical protection, burial depths, 6-inch free conductor rule, boxes at splices, and plenum wiring.

NEC Articles 404 & 406, Switches & Receptacles

15A vs 20A receptacle rules, tamper-resistant requirements, wet/damp location covers, and snap switch grounding.

NEC Article 334, NM Cable (Romex)

Permitted uses, 4½-foot support intervals, 12-inch box rule, 1.25-inch edge clearance, and where Romex is prohibited.