ANSI C12.8:1981(R2012)
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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American National Standard for Test Blocks and Cabinets for Installation of Self-Contained A-Base Watthour Meters
Hardcopy , PDF
10-28-2021
English
10-04-2021
1 Scope
2 Definitions
3 Standard ratings
3.1 Current
3.2 Voltage
4 General requirements
4.1 Spacings
4.2 Temperature rise
4.3 Assembly bolts
4.4 Connectors
4.5 Connector nuts
4.6 Test clips
4.7 Barriers
4.8 Disconnect device
4.9 Material of base
4.10 Mounting holes
5 Test-block dimensions and configurations
5.1 Dimensions
5.2 Test-block figures
6 Test-block cabinets
6.1 Dimensions for indoor test-block cabinets
6.2 Cabinet cover
6.3 Cabinet material
6.4 Cabinet construction
Figures
1 100 A test block, line-load
2 100 A test block, line-line-line-load-load-load
3 200 A test block, line-load
4 200 A test block, line-load, alternate
construction
5 Neutral block
6 Indoor test-block cabinet for two- and three-pole
test blocks
7 Indoor test-block cabinet for two- and three-pole
test blocks
Table
1 Minimum spacings
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