alarm cable

[dave-gardiner]

need to run a alarm cable between buildings 20m apart (agricultural), no vehicular access. do i still have to suspend it with catenary 5.8m in heigh
buried is out of question due to pipe work etc.

 

[cook1e]

alarm cable will stretch and snap if not supported, bt overhead cable has 3 steel strands in for that reason, cant you go wireless ?

Martin

 

[alarm man]

alarm cable will stretch and snap if not supported, bt overhead cable has 3 steel strands in for that reason, cant you go wireless ?

Martin

as martin,a tx/rx might save a lot of time..

 

[brooky25]

Imagine a couple of big fat magpies that fancy a quick smoke break and rest, sitting on the cable

 

[dave-gardiner]

the cable is a 12core cable for different alarms and control. i don,t mind additional supports but does it still have to be 5.8m high.

 

[alarm man]

cant see why,but depends what the site says.

 

[Guitarist]

No limit on span if supported by a catenary wire. 5.8m high required as it is agricultural. Table 4B in osg

 

[alarm man]

No limit on span if supported by a catenary wire. 5.8m high required as it is agricultural. Table 4B in osg

its 12 volt not 240,cant see that reg applying in this case.

 

[cook1e]

Ask any BT engineer which profession manages to snap or damage the most overhead cables, particularly in rural areas !

Martin