Yep. It's normal. If the fits don't last long, just step over him and continue your business. Distraction is appropriate at this age too. When you take him away from the electrical outlet, offer a alternative. Babies don't fully understand negative commands like "stop that." THe respond better to positive statements like "Let's play with bloks."
If he's persistent with his fit -- throwing things, kicking you, follows you around screaming, etc., you might try something like this:
Step 1: Stay calm.
Step 2: Say calmly, "Oh no, looks like you need some time to cool off" and put him in his crib or a playpen (be sure it's in another room or where he can't see you) for a minute or two. Setting a timer would be a good idea.
Step 3: When you go get him, say "I sure missed you! I hope you're ready to play nice/follow our rules/whatever." At his age, it's ok to get him out of the crib even if he's still fussing. He'll likely calm down once you're with him again. For an older child (like age 2 or so) I'd leave them in the room or crib until they're calm, THEN start the timer.
He'll likely go right back to the electrical outlet as soon as you put him down. If so...
Remove him and give the appropriate instruction and/or distraction. Then repeat Steps 1 through 3 over and over again until he gives up the fight.
Just note that when you pick a battle, you have to win it, and kids, even at 10 months old, can be doggedly persistent.