SANS 62054-21:2015(R2022)
Current
The latest, up-to-date edition.
Electricity metering (a.c.) - Tariff and load control - Part 21:Particular requirements for time switches
Hardcopy
English
01-12-2022
Specifies particular requirements for the type test of newly manufactured indoor time switches with operation reserve that are used to control electrical loads, multi-tariff registers and maximum demand devices of electricity metering equipment. Gives no requirements for constructional details internal to the time switch.
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