2023 NFPA 70, 356 Liquidtight Flexible Nonmetallic Conduit (LFNC)

[GetWiredEmpire]

Conduit, Liquidtight Flexible Nonmetallic (LFNC) (Liquidtight Flexible Nonmetallic Conduit)

A raceway of circular cross section of various types (356): A smooth seamless inner core and cover bonded together and having one or more reinforcement layers between the core and covers, designated as LFNC-A A smooth inner surface with integral reinforcement within the raceway wall, designated as LFNC-B A corrugated internal and external surface without integral reinforcement within the raceway wall, designated as LFNC-C

Beside Article 356, there is no other place in the 2023 NFPA 70 that describes LFNC-A, LFNC-B, and LFNC-C aside from Chapter 1 - Definitions (other than Chapter 9 - Tables).

My question is: Since we cannot reference the three LFNC types from Article 356, how can we learn more about these cables? I suppose I am looking for diagrams or product images.

 

[GetWiredEmpire]

I just realized I was not researching "cables." I am researching "conduit" which are different things.

I found some things.

What are the differences between liquid tight flexible non-metallic conduit (LFNC) Types A and B?, anacondasealtite.com (PDF, archived version)

Type LFNC-A (archive link) is arranged starting with the core. (A) is the core, (B) is the reinforcement layer, and (C) is the cover.

Type LFNC-B, (archive link) appears to have a smooth inner cover and a smooth core.

I can't find anything on LFNC-C (archive link), so it might just be "LFNC" plain, as most results come up as corrugated conduit without any kind of "integral reinforcement."

From 2023 NFPA 70, Chapter 1 - Definitions for LFNC-C:

A corrugated internal and external surface without integral reinforcement within the raceway wall, designated as LFNC-C.

 

[ramsy]

Nice work, never seen type A or C before. Wonder if those are easier to pull wire through.