GB/T 17215.421-2008 Active National standards

GB/T 17215.421-2008 Electricity metering equipment (a.c.)—Tariff and load control—Part 21:Particular requirements for time switches

Publish Date: 2008-08-06 Implement Date: 2009-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 17215.421-2008

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: \nElectricity measurement and load control system

ICS Name: The measurement of electrical and magnetic quantities

Publish Date: 2008-08-06

Implement Date: 2009-03-01

Pages: 10 pages

Scope

This part of GB/T 17215 specifies the special requirements for type testing of the latest manufactured indoor use and working reserve time switches. Time switches are commonly used in power load control, multi-rate metering devices, and maximum demand devices of energy metering equipment. The time switch maintains real-time, can save the date, and handle leap years. It also supports daylight saving time, that is, according to relevant rules, it can modify the deviation between local time and GMT. The time switch also has a synchronization function, and it saves a switch action program table, which can stipulate the time period, weekdays, or dates of the year or month. The time switch controls the output unit according to the time and the stored program table. This part does not set requirements for the internal structure of the time switch.