9-10, but the conduit may not exceed a certain length, or a certain voltage in order for you to "legally" do it. Many applications allow for conduit fill ratio's that exceed the standards of the NEC ( National Electrical Code) and most of them are short (less than 24") "chases" between control devices mounted in listed Junction boxes for that purpose. It is not advisable to fill a conduit more than the NEC allows for purposes of heat dissipation.
The electrical code stated that two # 10 wires can be pulled into a half inch conduit.
10
n you run thhn wire in a cable tray
yes
#1 copper thhn
yes
I would need more detailon your question but what i can tell you is 100' of #10 THHN eire is 8320grams with insulation and 7110 grams as bear copper wire. Now what i am trying to figure out is if that copper wire is 100% copper or not?
Thw...thermoplastic heat resistant wire building wire type. In most applications replaced by type thhn which has a smaller od and
THHN wire is moisture resistant thermoplastic allowed for use in dry and wet locations. Maximum temperature is 60 C or 140 F. Being thermoplastic it should not be handled below 0 C as cracking of the insulation could easily occur.
2.2 lbs per ft
The conductor can be pulled into conduit and then buried but it is not certified for direct earth burial.
Not sure what you mean by "gas" rated wire. If you mean "gasoline resistant" you probably have type THHN wire insulation. Size #8 THHN is not suitable for a 60 amp application anywhere.
It's a table that shows the ampacity ratings for the particular wire size and insulation you are using. Example: #12 THHN CU is rated @ 30amps under the 90 degree column. (#12)is the wire size, (THHN)is the type of insulation on the wire (CU)is copper. You shouldn't be using the chart unless you're a qualified electrician simply because there are many sub rules and exceptions.
Cross link polyvinyl chloride RW90 (PVC) and THHN are two common types of insulation THHN wire stands for thermoplastic high heat resistant nylon coated wire. THWN stands for thermoplastic heat- and moisture resistant nylon coated wire.