IEEE standards download IEEE Std 2780-2019 pdf download – IEEE Standard for Insulation-Piercing Connectors IEEE Std 2780-2019 pdf download - IEEE Standard for Insulation-Piercing Connectors. 5.3.2 IPC connection For the IPC covering a certain conductor cross-sectional area range, the maximum size should be selected from both the main cable and the... 02-26 Download Now