What’s the heaviest lift?

Hey all… I’m going down to apply to my local ibew tomorrow and I’m curious how physically demanding this field actually is? I’m currently a machine operator at a factory and lift 40-50 pounds on average. My boyfriend says I will hate the physical load of being an electrician but I’m not sure if he’s being helpful and watchful or a bit of a negative Nancy because I want to take this new step in life.

For reference I’m a 31 yr old female and I weigh about 135.