1 Scope Replace the two first paragraph by the following: This document specifies the electrical safety requirements for HBES/BACS In the third paragraph, delete network after HBES/BACS . Delete the fourth paragraph (this document is applicable to & ) Modify the fifth paragraph as follows: This document covers the following requirements and compliance criteria: " protection against hazards from the device; " protection against overvoltages on the network; " protection against touch current; " protection against hazards caused by different types of network; " protection of the communication wiring against overheating caused by excessive current.