Can this inusualtion be??

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Smart $

Esteemed Member
Location
Ohio
Specs says RHH/RHW-2/USE-2 Low smoke zero halogen. Can you have both? Aren't they both insulations?
I see 3... so are referring to any 2 in particular?

That said, it is not uncommon to have insulation which meet the standards for more than one type and labeled as such.
 

jmellc

Senior Member
Location
Durham, NC
Occupation
Facility Maintenance Tech. Licensed Electrician
A lot of wire is multi labeled as THWN & THHN, or also MTW as well.
 

mstrlucky74

Senior Member
Location
NJ
For example can you have a USE-2 wire with LSZH also? These are not BOTH insulation types? I would say not because I have seen this wire before.

Maybe LSZH is the jacket and not the insulation
 
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Joe Villani

Senior Member
For example can you have a USE-2 wire with LSZH also? These are not BOTH insulation types? I would say not because I have seen this wire before.

Maybe LSZH is the jacket and not the insulation

Yes. However since you can't use USE-2 in a building it will have another rating also as RHW (for example)

To achieve the LSZH additional additives are added to the insulation.

I have seen this as a spec in tunnels and shafts.

General cable is one manufacturer that has this type of product.
 

Smart $

Esteemed Member
Location
Ohio
For example can you have a USE-2 wire with LSZH also? These are not BOTH insulation types? I would say not because I have seen this wire before.

Maybe LSZH is the jacket and not the insulation
LSZH ( or LSOH or LS0H or LSFH or OHLS) is an additional classification for the jacket/insulation... but it has nothing to do with conductor insulating properties, at least not directly. Somewhat similar to conductor types that are additionally labeled sunlight resistant.
 
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