Ok I've found the red and green fuses....now how do I get to the blue one. I know I've seen something down on the floor where I got the green fuse, but there is no safe way to get down there. I also have seen a platform with a tunnel at the end of it on the left. But there's no way to get up there and I am thinking that tunnel may lead to getting the blue fuse....can anyone point me in the right direction? I don't like being stuck.

If I remember correctly...

The blue fuse is below where the green fuse was. When Lara is hanging from the grapple rope press and hold the interact button so you can get her to move down the rope. Swing left and jump backwards off the wall to land in a bin which will tip over and dump Lara on the floor, but don't gain too much momentum or she'll hit the platform where the green fuse was and the grapple rope will disconnect from the grapple point. You can also jump off the grapple rope so she continues to the left and lands on a slope, but you'll lose a fair amount of health if you do that, and may die depending on what difficulty mode you're on.

Or that's how I did it anyway. There's probably a better way to do it because I find it fairly difficult...

I played this level again today and I'm a bit fuzzy but put in the red and green fuses and then push the two buttons until the red fuse button's light is yellow and the green fuse button's light is green. Get out and jump onto the boxes with the single box on top of it (the big green boxes). Pick up the small medipack if you haven't already and then jump onto the box that the fuses move. Shimmy to the left and to the corner and then if you look back there's a walkway which you can backwards jump to. Follow that path and then take a right when you see two openings (you may have to look for it) and go down the two ladders and then use the cave and ledges to go downwards and into the bottom space with the blue fuse.

That is actually less confusing than it sounds, LoL. Shrensh's way sounds interesting, haven't thought of trying it that way.

LOL, so there is another way. I wondered about that, since I died a lot when I did the backwards jump, and the amount of health I lost jumping to the slope made me suspect that wasn't the way to do it either.