E2 · area 08 · subtopic 0804
Communications Systems
1 percent of the E2 Commercial Electrical Inspector exam. At 80 questions, that is roughly 1 question, each with about 158 seconds of budget including the lookup.
- Exam
- E2
- Area
- Special Systems
- Weight
- 1%
- Questions
- ~1
What this subtopic covers
Communications circuits including CATV and fiber optics: proper wire type and location, clearances, and grounding.
How to drill it
- Find the chapter of the the adopted electrical code that carries this subject and read it once for structure, not retention: what lives here, what gets sent elsewhere, which tables exist.
- Write your own plain-language phrases for what this subtopic covers, then note the code's terms beside them. Mismatches between the two columns are exactly where exam questions cost you time.
- Run timed lookups: pick a requirement named in the descriptor above, start a stopwatch, find the governing text in your book, stop. Log the seconds. Past two minutes is a miss even when the answer is right.
- Weight your reps to the number above. Roughly 1 question means this subtopic needs a handful of confident reps, not a week.
2024 International Residential CodeThe book that sits on the table for two hours. Match it to the version you register for.Check priceThe rest of area 08: Special Systems (7%)
| Subtopic | Weight | |
|---|---|---|
| 0801 | Emergency Systems | 2% |
| 0802 | Signaling Systems | 2% |
| 0803 | Fire Alarm Systems | 2% |
The kit that goes on the table
2024 IRCThe book itself
2021 IRCIf you register on 2021
2024 Fast-TabsPlace them yourself
Construction Master ProFeet-inch math, no errorsMatch the book and tabs to the edition you register for.Confirm which, first.
The 120-second study sheet
One page: every topic weight on all four residential exams, the plain-language to code-language glossary, and the two-week study sequence. Free, straight to your inbox.
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