diff --git a/baystation12.dme b/baystation12.dme
index 1453fd6be2d..708ae6033c4 100644
--- a/baystation12.dme
+++ b/baystation12.dme
@@ -1076,6 +1076,7 @@
 #include "code\modules\mob\simple_animal\worm.dm"
 #include "code\modules\power\apc.dm"
 #include "code\modules\power\cable.dm"
+#include "code\modules\power\cable_heavyduty.dm"
 #include "code\modules\power\cell.dm"
 #include "code\modules\power\engine.dm"
 #include "code\modules\power\generator.dm"
diff --git a/code/modules/mob/living/carbon/human/human.dm b/code/modules/mob/living/carbon/human/human.dm
index 69558e18fb5..31f7e391cfa 100644
--- a/code/modules/mob/living/carbon/human/human.dm
+++ b/code/modules/mob/living/carbon/human/human.dm
@@ -547,7 +547,7 @@
 				if (emptyHand)
 					wear_mask.DblClick()
 				return
-			if (!( istype(W, /obj/item/clothing/mask) ))
+			if (!( W.slot_flags & SLOT_MASK ))
 				return
 			u_equip(W)
 			wear_mask = W
diff --git a/code/modules/mob/mob.dm b/code/modules/mob/mob.dm
index aabe19c9e90..17e4acdde25 100644
--- a/code/modules/mob/mob.dm
+++ b/code/modules/mob/mob.dm
@@ -90,15 +90,20 @@
 		if("mask")
 			if (wear_mask)
 				return
-			if (!( istype(W, /obj/item/clothing/mask) ))
+			if (!( W.slot_flags & SLOT_MASK ))
 				return
 			u_equip(W)
 			wear_mask = W
 			W.equipped(src, text)
 		if("back")
-			if ((back || !( istype(W, /obj/item/weapon) )))
+			if (back)
 				return
-			if (!( W.flags & 1 ))
+			if (!istype(W, /obj/item))
+				return
+			if (!( W.slot_flags & SLOT_BACK ))
+				return
+			if(istype(W,/obj/item/weapon/twohanded) && W:wielded)
+				usr << "<span class='warning'>Unwield the [initial(W.name)] first!</span>"
 				return
 			u_equip(W)
 			back = W
diff --git a/code/modules/power/cable_heavyduty.dm b/code/modules/power/cable_heavyduty.dm
new file mode 100644
index 00000000000..b23d164b214
--- /dev/null
+++ b/code/modules/power/cable_heavyduty.dm
@@ -0,0 +1,27 @@
+/obj/item/weapon/cable_coil/heavyduty
+	name = "heavy cable coil"
+	icon = 'power.dmi'
+	icon_state = "wire"
+
+/obj/structure/cable/heavyduty
+	icon = 'power_cond_heavy.dmi'
+	name = "large power cable"
+	desc = "This cable is tough. It cannot be cut with simple hand tools."
+
+/obj/structure/cable/heavyduty/attackby(obj/item/W, mob/user)
+
+	var/turf/T = src.loc
+	if(T.intact)
+		return
+
+	if(istype(W, /obj/item/weapon/wirecutters))
+		usr << "\blue These cables are too tough to be cut with those [W.name]."
+		return
+	else if(istype(W, /obj/item/weapon/cable_coil))
+		usr << "\blue You will need heavier cables to connect to these."
+		return
+	else
+		..()
+
+/obj/structure/cable/heavyduty/cableColor(var/colorC)
+	return
\ No newline at end of file
diff --git a/icons/obj/power_cond_heavy.dmi b/icons/obj/power_cond_heavy.dmi
new file mode 100644
index 00000000000..69b9ef085b1
Binary files /dev/null and b/icons/obj/power_cond_heavy.dmi differ