I am reading 2006 version masterspec section 16051. It says "install sleeves for penetrations on concrete slab and walls unless core-drilled holes or formed opening are used. Install sleeves during erection of slabs and walls".
I am wondering do we need install sleeves for electrical service conduits under service panelboard or switchboard? I have never seen that before. What do you think? Thanks.
I am wondering do we need install sleeves for electrical service conduits under service panelboard or switchboard? I have never seen that before. What do you think? Thanks.