Inside and Outside Diameters - Kwikpath Plenum Internal and External Dimensions
Dimensional specifications are applied to nonmetallic conduit in order that they may fulfill their function of housing cabling without causing abrasion when cables are pulled through the inside of the conduit. Wall thickness is specified so that the conduit adequately protects the conductors inside from damage. Fittings are to be provided with end stops (centering stop for a coupling). The maximum inside diameter of the stop cannot exceed the minimum outside diameter of the conduit.
Trade Size of Conduit (in.) |
Inside Diameter
Min |
Inside Diameter
Max |
Outside Diameter
Min |
Outside Diameter
Max |
21 (3/4") |
0.774" (19.66mm) |
0.834" (21.18mm) |
1.021" (25.91mm) |
1.061" (26.92mm) |
27 (1") |
1.000" (26.90mm) |
1.060" (26.90mm) |
1.286" (32.64mm) |
1.326" (33.65mm) |
35 (1 1/4") |
1.329" (33.73mm) |
1.393" (35.36mm) |
1.630" (41.35mm) |
1.673" (42.47mm) |
41 (1 1/2") |
1.559" (39.57mm) |
1.623" (41.20mm) |
1.869" (47.45mm) |
1.913" (48.56mm) |
53 (2") |
2.016" (51.18mm) |
2.081" (52.81mm) |
2.324" (59.00mm) |
2.388" (60.63mm) |
Test Standards Used
The test standards used for testing the physical properties of optical fiber and communication cable raceway for the United States and Canad
Test |
USA |
Canada |
Heat Shock |
UL2024 |
ULC/ORD C2024 |
Cold Bend |
UL2024 |
ULC/ORD C2024
CSA C22.2 |
Fitting Pull-Out |
UL1653 Electrical Nonmetallic Tubing |
CSA C22.1 No. 227.1
Electrical Nonmetallic Tubing |
Radius of Bends
Any bends must be made so that the optical fiber and communication cable raceway will not be damaged and the internal diameter of the optical fiber and communication cable raceway will not be effectively reduced. Bends can be made manually without auxiliary equipment. However, the radius of the curve to the centerline of such bends shall not be less than shown in the following table
Conduit Size |
Radius of Bends |
3/4" (21mm) |
5" (127mm) |
1" (27mm) |
6" (152.4mm) |
1 1/4" (35mm) |
8" (203.2mm) |
1 1/2" (41mm) |
10" (254mm) |
2" (53mm) |
12" (304.8mm) |
Plenum - The Steiner tunnel test
STANDARD |
UNITED STATES |
CANADA |
Plenum Test |
UL2024 |
ULC/ORD-C2024 |
Maximum flame propagation distance |
5 FT |
1.5 m |
Peak Optical Density |
0.50 or less |
0.50 or less |
Average Optical Density |
0.15 or less |
0.15 or less |
Raceway Making |
Plenum |
FT-6 |
KWIKPATH™ MEETS ALL BUILDING REGULATIONS
Eliminate all building compliance concerns and pass inspection knowing every part of your fittings and raceway system 100% meets all UL, NEC, NFPA, and EIA/TIA requirements.
EIA/TIA – Meets all commercial building telecommunications cable protection and performance codes.
NEC 2005 (National Electric Code) governs the removal of abandoned cables in air handling spaces, Kwikpath is in compliance with articles 770 and 800 with its convenient way to remove and replace cable through the Kwikpath raceway.
NFPA- (National Fire protection Association) meets all cable management requirements for air plenums, ducts and other environmental air spaces.
UL2024 PLENUM General Purpose-certified to meet standards for flame damage and flame test.
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