18 2 spt 1 wire has an insulation thickness of 030 and 18 2 spt 2 has insulation that is 045 thick.
Spt 1 vs spt 2 lamp cord.
Spt 1 cable is rated to 105 c and spt 2 has versions that are also rated to 105 c.
Cost difference between spt 1 and spt 2 spt 1 is a lower cost than spt 2 which does make it more appealing especially to pro installers.
However because the thickness of the insulation is thicker it is more difficult to to use with our 1 8ips nipples and pipe.
While spt 1 lamp cord weighs between 20 21 pounds per thousand feet spt 3 lamp cord can weigh 88 or even 100 pounds per thousand feet.
Whats the differences between spt 1 and spt 2.
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Spt 1 spt 2 spt 3 stranded parallel thermoplastic lamp cord zip wire it is the commonly seen flat 2 conductor electrical cord found in most homes with 18 gauge.
1 16 of 608 results for spt 1 lamp cord low voltage landscape lighting cable 18 2 spt 1 bulk lamp cord 300 volt 18 gauge 100 feet spool black ul listed 4 8 out of 5 stars 66.
There is only one thing that separates spt1 and spt2 and that is the thickness of the coating on the wire.
However other spt 2 cable is rated to 60 c.
Spt 1 wire has a thinner insulation than spt 2.
Larger christmas installation businesses can use hundreds of thousands of feet of c7 and c9 light lines each year which means pretty good annual savings by going with spt 1.
Ul recommends using spt 2 when building table lamps.
Oh and as a tip make sure that the plugs you purchase are rated for either spt 1 or spt 2 as the second variety has to be designed to fit the larger insulation.
The decision to use spt 1 or spt 2 will be a factor of your project environment and budget.
Buy spt 1 lamp cord online or submit an rfq for quantity discounts.
20 2 spt 1 lamp cord has two stranded bare copper conductors and is rated from 20 c to 105 c.
