UL

[Wayne G. Dengel]

Trying to wade through UL's site; determined that standards are sold.

Can someone help identify what standard is involved in electrical cabling?

Specifically, within a product, I need to cable (within one sheath) 110vac
and shielded control lines. Off the "top of your head", is this acceptable?

Is there a UL-related forum?

Regards,
Wayne

 

[Wayne G. Dengel]

As soon as I learn how to properly search, "wade" through UL's site, I'll
reply to your question.

The application is such that a composite cable IS required, i.e. 110VAC and
coax lines all in one sheath.

 

[SQLit]

Trying to wade through UL's site; determined that standards are sold.

Can someone help identify what standard is involved in electrical cabling?

Specifically, within a product, I need to cable (within one sheath) 110vac
and shielded control lines. Off the "top of your head", is this acceptable?

Is there a UL-related forum?

Regards,
Wayne

If I understand correctly you want to run line and low/control voltage in
the same cable and this cable is shielded.

If line and control voltages are the same then your good to go.

If the above statement is correct then I believe you need some more research
with the NEC as well. Generally the NEC wants all of the current carrying
conductors disconnected from a single location/switch/over current device.
Most inspectors where I live would be having kittens and cows on something
like this if there was two sources of power in the same cable.

Depending on the application and length of run this method might be more
trouble than running two cables.

 

[Ben Miller]

If the above statement is correct then I believe you need some more
research
with the NEC as well. Generally the NEC wants all of the current carrying
conductors disconnected from a single location/switch/over current device.
Most inspectors where I live would be having kittens and cows on something
like this if there was two sources of power in the same cable.

The NEC does not apply within a product. UL standards dictate the
requirements. He needs to look at the applicable UL standard for the end
product to determine what is acceptable.

Ben Miller

 

[Ben Miller]

Trying to wade through UL's site; determined that standards are sold.

Can someone help identify what standard is involved in electrical cabling?

Specifically, within a product, I need to cable (within one sheath)
110vac and shielded control lines. Off the "top of your head", is this
acceptable?

Is there a UL-related forum?

Regards,
Wayne

You need to obtain and study the UL standard for whatever your end product
is. Off the top of my head, what you want to do is often acceptable as long
as all insulation is rated for the highest voltage. However, there may be
special requirements for your product. Often there are simple methods that
will accomplish compliance with the UL requirements. It takes some
experience.

Regards

Ben Miller