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Test033_ExtensionCord12awg_R3

Table 1. Test Information
Name
Test033_ExtensionCord12awg_R3
Date
Description

50ft of 12/3 extension cord. Ignition=8 cm continuous flame

Specimen
electric cord
Ignition
propane flame
Project ID (s)
Test Director
McGrattan

Timelapse Video with Heat Release Rate Plot

Table 2. Summary of Test Results
Measurement Value Uc Unit
Peak Heat Release Rate, PHRR
0.96
0.52
kW
Time to Peak Heat Release Rate
0.43
0.17
min
Total Heat Released, THR
below detection limit
0.095
MJ
Gas Burner Total Heat Released, NGTHR
0
-
MJ
Heat Release Quality Confirmation, HRQC
Not measured -
MJ/MJ
Net Specimen Mass (gravimetric), NM = Mi-Mf
below detection limit
0.028
kg
Net Effective Heat of Combustion = THR / NM
below detection limit
11
MJ/kg
O2 Yield = O2 Consumed / NM
-0.5
-1.7
kg/kg
CO2 Yield = CO2 Generated / NM
-1.2
-3.7
kg/kg
CO Yield = CO Generated / NM
below detection limit
0.13
kg/kg
Soot Yield = Soot Generated / NM
below detection limit
0.019
kg/kg
Baseline Hood Exhaust Flow
2.173
0.065
kg/s
Test Duration = Time(Fire Out) - Time(Ignition)
5.73
0.03
min

Uc = Combined Expanded Uncertainty with 95% confidence level

Table 3. Summary of Test Input Parameters
Parameter Value Uc Unit
Fuel Type
Plastic
- -
Hood Size
3
-
m
Effective Duct Diameter
0.485
0.005
m
Exhaust Flow Correction Factor
1.033
0.029
-
Net Heat of Combustion (per unit mass O2), Ef
13.10
0.66
MJ/kg
Net Heat of Combustion(per unit mass fuel), HOCf
30.00
6.00
MJ/kg
Initial Specimen Mass, Mi (gravimetric)
2.90
0.02
kg
Final Specimen Mass, Mf (gravimetric)
2.89
0.02
kg
Table 4. Summary of Observed Test Events
Event Time (min) Description Video Snapshot Image
1
0.00
Ignition
peak
0.43
Peak HRR
2
5.73
Fire Out

Table 5. Supplemental Data Plots

Bryant, R. and Bundy, M. The NIST 20 MW Calorimetry Measurement System for Large-Fire Research, Technical Note (NIST TN) 2077, 2019
https://doi.org/10.6028/NIST.TN.2077(link is external)

NIST Fire Calorimetry Database (FCD)
https://doi.org/10.18434/mds2-2314(link is external)

Report Process Script Version
NFRL_Report_8.4.8
Last Updated April 6, 2023