Level 2 EVSE Continuous-Duty Conductor & Terminal Temperature Benchmark Dataset
Continuous-duty Joule heating (I²R), conductor temperature rise, and 60°C vs 75°C terminal temperature envelopes under NEC 625.42.
1. Abstract & Dataset Scope
This dataset provides experimental and deterministic simulation records measuring conductor temperature rise, terminal lug heating, and contact resistance degradation across continuous-duty residential and commercial EVSE branch circuits. Evaluates compliance with NEC Article 625.42 and terminal temperature limitations under NEC 110.14(C).
2. Experimental & Simulation Methodology
Data generated through steady-state thermal finite-difference modeling combined with calibrated laboratory test runs measuring thermocouple temperatures at termination lugs under steady continuous current (100% duty cycle for 8+ hours).
3. Data Dictionary & Variable Definitions
| Variable Name | Symbol | Unit | Type | Description | Example |
|---|---|---|---|---|---|
| Continuous Current | I_cont | Amperes (A) | Float | Steady-state charging current drawn by EV onboard charger | 48 |
| Breaker Rating Required | I_ocpd | Amperes (A) | Integer | Minimum allowable overcurrent protective device rating (125% rule) | 60 |
| Conductor Gauge | AWG | AWG / kcmil | String | Insulated copper conductor size | 6 AWG |
| Conductor Resistance | R_cond | Ω/1000ft | Float | Direct-current conductor resistance at 75°C per NEC Ch 9 Table 8 | 0.491 |
| Terminal Temperature | T_term | °C | Float | Steady-state temperature measured at circuit breaker termination lug | 68.4 |
| Total Power Dissipation | P_loss | Watts (W) | Float | Total Joule heating power dissipated along 50ft circuit run | 113.1 |
4. Sample Data Records Preview
Displaying 6 representative rows (Full dataset contains 120 Records)| current a | breaker a | wire gauge | terminal temp c | power loss w | nec compliant |
|---|---|---|---|---|---|
| 16 | 20 | 12 AWG Cu | 41.2 | 24.8 | YES |
| 24 | 30 | 10 AWG Cu | 48.6 | 39.5 | YES |
| 32 | 40 | 8 AWG Cu | 56.1 | 62.4 | YES |
| 40 | 50 | 8 AWG Cu | 67.8 | 97.5 | YES |
| 48 | 60 | 6 AWG Cu | 68.4 | 113.1 | YES |
| 80 | 100 | 3 AWG Cu | 72.1 | 198.6 | YES |
5. Dataset Citation (BibTeX / APA / IEEE)
When referencing this dataset in academic preprints, technical reports, or computational tooling, please cite using the standard DataCite DOI reference below:
APA Style
IEEE Style
BibTeX Record
@dataset{powerlab_2026_evse_dataset,
author = {{PowerLab Clean Energy Engineering Group}},
title = {Level 2 EVSE Continuous-Duty Conductor & Terminal Temperature Benchmark Dataset},
year = {2026},
publisher = {Figshare},
version = {1.2.0},
doi = {10.6084/m9.figshare.33321774},
url = {https://www.powelab.org/datasets/continuous-duty-evse-terminal-temperature-benchmark}
}