Final answer:
The term for explanatory material following specific NEC sections is 'Informational Note.' These notes are meant for clarification and additional information but are not enforceable parts of the NEC.
Step-by-step explanation:
The explanatory material that follows specific NEC (National Electrical Code) sections is known as an Informational Note. These notes provide additional insight, background information, and clarification to the code, helping users understand and apply the requirements effectively. However, it's important to note that Informational Notes are not enforceable as part of the code requirements.