Read wire markings before assuming suitability

U1: Zero experience to first-year apprentice

First step

From a trainer's wire-label photo or data sheet, transcribe the type letters, size, material and stated ratings exactly.

The table separates printed information from values that need a matching manufacturer's data sheet.

Completing an unreadable marking from memory makes a guessed rating look like observed evidence.

  • Step 2 Members only
  • Step 3 Members only

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Not a licensed Professional Engineer in Texas or any U.S. state. Does not offer engineering services. Exam-prep education only.