UL Standards free download UL 710-2012 pdf download – Exhaust Hoods for Commercial Cooking Equipment UL 710-2012 pdf download - Exhaust Hoods for Commercial Cooking Equipment. 5 Glossary 5.1 For the purpose of this Standard the following definitions apply. 5.2 CIRCUIT, HIGH-VOLTAGE – A circuit having characteristics in excess of those of... 02-12 Download Now