

![]() Another IRS 'Head End' assembly awaiting installation to a new build block of flats. |
Another typical board-mounted IRS 'Head End' awaiting installation to a communal loft space at a new build site. |
![]() A "Sub-Head End" on an IRS system which is powered by the launch amplifier at the main 'Head End'. |
A 'Sub-Head End' IRS 'Thru-Line' switch which feeds onto another communal loft in an adjacent block whilst feeding this block with their signal. |
![]() This is an example of an IRS installation which does not have the correct safety-bonding in place. Bizarrely a bonding bar is in place, but no earth supply. |
This one has safety-bonding; well almost. We can see here that the earth supply is not actually connected. |
![]() Although an attempt has been made to "earth" this system, it has been done incorrectly. They have connected to the supply earth instead of the building's main earth. |
Similarly, this one is incorrectly 'earthed' via the mains supply. |
![]() Well, no pride or care was taken in this job by whoever installed it. We had the unenviable task of sorting it out. |
...and a close-up of the 'Spaghetti'... |