Found out yesterday that NEC code 760.121 requires fire alarm cable support every 4 feet, not 6 like I’ve been doing for 8 years

I was reading through some 2023 code updates on a break between jobs and stumbled across that one. Always thought it was 6 feet for any low voltage stuff. Pulled out my old handbook and sure enough I’ve been spacing my staples wrong this whole time. Got me wondering how many inspectors actually check that or if I just got lucky all these years. Any of you guys run into an inspector who busted you on that specific rule?

2 comments

2 Comments

amy_sanchez5d ago

Buddy of mine got failed on that exact same rule last month.

sandragonzalez6d ago

Man, I've been running staples at 6 feet for years too. Never had an inspector say a word about it. Must have gotten lucky or they just don't care that much. Makes me wonder how many other little rules I've been bending without knowing.