Rule 8-200(1)(a)(iii) takes you to section 62, because hot water tank is considered a fixed electric heating system. (See Rule 62-000 Scope and its Appendix B.) And the 1.25 factor is based on Rule 62-114(6)(b), which says:The load shall not exceed 80% of overcurrent protection device rating.
Hi Deanna. Could you tell us how to do a service load calculation for an electric hot water boiler, please?
For hot water tank many electrician follows section 8 and consider it as continuous load and derate both breaker and cable by 1.25.
Love your videos. Thank you.
Where do you get the 1.25 factor?
Rule 8-200(1)(a)(iii) takes you to section 62, because hot water tank is considered a fixed electric heating system. (See Rule 62-000 Scope and its Appendix B.)
And the 1.25 factor is based on Rule 62-114(6)(b), which says:The load shall not exceed 80% of overcurrent protection device rating.