Wiring Mains to Garage May 2007 to Nov 2009 - Finished!

[flying haggis]

If they are metal-clad CU's then yes, but if they are plastic you will need to terminate them into a metal adaptable box and then use 6mm² t&e to join SWA to the CU.
Here are some links to the things you will need:

Underground warning tape

60A connector strip

SWA glands

3-core 6mm² SWA

Green & yellow sleeving

Metal adaptable box

not necessary to use a metal box to terminate but if you do, fix metal box next to CU ie touching then fix gland to metal box and take cores of SWA through metal box into CU. OR fix gland onto CU then earth armour using piranha nut