If you are working with fine strand wire such as motor leads, GTF, control wire, then I like to put a compression termination on them. If you twist a marrette on these, you tend to lose a few strands reducing your current carrying capacity. Also 32-100(2) tells us to bunch tin or use compression connectors for more than 7 strand fire alarm conductors.
Re: Stranded and solid wire splice#102642 09/28/0612:04 PM09/28/0612:04 PM
Yes it is permissible as long as you continue to use the max amount of conductor’s permitted for the size of the Marr. you are using.
JUST A NOTE;
When twisting a 12awg CU stranded with a 12awg AL or #14awg AL conductor that is solid or stranded the inspectors in the lower mainland espy Vancouver and Burnaby are now looking more closely for a “PURPLE” colored Marr in these cases as they (ALL SIZES), have a better HYDRO type anti-corrosion compound un like PENETROX or NOALOX in them and bursts into the wires thoroughly when twisted.
Robert William Wagner
Re: Stranded and solid wire splice#102643 09/28/0612:32 PM09/28/0612:32 PM