Historical
CSA C22.3 NO. 7-10
Underground systems (Includes Update #1)
This Standard applies to the lines and equipment associated with underground electric supply and communication systems located entirely outside buildings and fenced supply stations. See CAN/CSA-C22.3 No. 61936-1 for installations within fenced or indoor supply stations.
CONTENT PROVIDER
CSA America, Inc. [csa]
CSA America, Inc. [csa]