American You Tube electrics

[Dustydazzler]

actually 3 different types.
emt thin-wall connected with collars and setscrews or compression collars (used in dry places with little chance of movement).
rigid conduit (threaded) in steel, aluminum, coated or anodized aluminum.
and pvc (with protective ground conductor) usually glued to seal out moisture (used a lot in barns or corrosive environments).

You also use a lot of this type of cable?

 

[Dustydazzler]

Surely installing some tray & large galvanised trunking

would be better than having to run 40 flexicons

 

[jackhammerJIM]

Surely installing some tray & large galvanised trunking

would be better than having to run 40 flexicons

All seems like madness to me ....

 

[Pete999]

Surely installing some tray & large galvanised trunking

would be better than having to run 40 flexicons

It's not called trunking and Tray Mate, it's Raceway

 

[gnuuser]

tech or flex armor is used in residential areas with possible rodent issues as well but limited to dry areas only.
raceway primarily in industrial, trunking in centralized power control panels from floor to floor. and tray mostly for communication cabling.
depending on the branch they work the most (residential, commercial, or industrial) many of the sparks are basically limited to a set type of conduit or cabling. residential usually nmc (romex) or mc (armored cables) some pvc conduit with very little exposure to rigid or emt.
heavy commercial usually emt and coated or anodized rigid, and industrial usually rigid, raceways, trays, and trunking
office building for instance require stringent fire proofing and fire blocking materials for every wall or floor penetration and depending on some inspectors it could cost you your license for failure to comply.

i would say the major difference between a residential spark and an industrial one here is whether they are complying with de-rating rules.
not knowing what a customer is going to load the circuits with they are limited to the materials they have to use and generally overkill the size to prevent possible problems (and its still a crap shoot because you don't know if the home owner is going to put in larger over current devices after you have left)
its one reason that i always took photos and made a detailed list of components of every panel I installed and had the inspector sign it as witness.

 

[norcal]

You also use a lot of this type of cable?

Teck is a Canadian product. Not common in the US.