4 ms·

Also heat. Wires bunched up tight can’t cool themselves down as well.

• jascii 7y ago
  If heat is an concern, you'd probably want to spec a thicker gauge wire.
  • XMPPwocky 7y ago
    Yes, but (especially when Cu and Al are pricy) being able to use a thinner gauge can be a big benefit.
  • tylerl 7y ago
    Regardless of wire gauge, bundles of wire noticably reduce your heat dissipation ability and therefore reduce your safe current carrying capacity accordingly. That's why electrical code significantly de-rates the current capacity of circuits which run more than just a few conductors in a single conduit or through the same hole.