Table of Contents
Advertisement
To meet UL60950-21 specific procedural steps must be taken at the time of installation. This sec-
tion goes through those steps. These steps should be performed before power is distributed in the
network. Normally the final step is performed by closing the circuit using a 5-pin protector after DC
power is applied to the system
Step
1.
37 2
Test each circuit by powering an open circuit at the remote end of the wire with a QS982 output. If red lights do
7.
not flash, there is no leakage path to ground at operating voltage.
Page 36
© 2021 ABB. All rights reserved.
m
Action
the network.
er
Advertisement
Table of Contents
