Securing earth cable against concrete lintel

evoke

I need to secure a thick earthing cable against a concrete lintel that runs across the top of a window. I've used clips either side into the brickwork joins but I cannot hammer the clips into the concrete lintel, so the cable sags a little.

I'm looking for an easy way of securing the cable tightly against the lintel.

vaio

either drill the lintel or fix a length of tube to span it

or maybe move the cable up so it is above the lintel

cyclonebri1

vaio wrote: »

either drill the lintel or fix a length of tube to span it

or maybe move the cable up so it is above the lintel

Exactly, pin into the mortar joint above the lintel, lintel areas are likely to get drilled:eek:, for curtain rails etc.