이십년넘은 아파트라 천장이랑 벽에 가스경보기같은게 있긴한데 작동안된지 오래라 집꾸미면서 전선은 잘라버렸거든요 천장은 새걸로 교체하려고하고 벽에 붙은 전선에 벽등 연결해도되나요??전선이 얇아보이던데 혹시 연결하면 터지고 그런건 없나요..??