Unverified85% confidenceDecision RuleTime unknown
计量精度选1.0级即可满足家用（误差±1%），0.5S级用于工商业结算或需要精细分时统计的场景，家用买0.5S级属于性能浪费
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified计量精度选1级（误差±1%）足够家用与自用监测；0.5S级（±0.5%）仅在需要精确分时结算或大功率商业计费时才有意义，价格显著更高90% similarUnverified计量精度选1级（误差±1%）足够家用，工业分表或商铺分租计费需选0.5级（误差±0.5%）以减少累计误差纠纷88% similarUnverified计量精度按等级划分，1级表误差±1%、0.5S级误差±0.5%，家庭分项计量选1级足够，需精确监测分时电价或光伏并网结算建议选0.5S级87% similarUnverified计量精度选1.0级即可满足家庭电费核算，误差≤±1%；若用于设备能耗测试对比或工业分析，需选0.5级（误差≤±0.5%）以上，否则功率差异被误差淹没85% similarUnverified计量精度等级1.0级用于普通居民与商用分表已足够，0.5S级仅在工业结算、大功率精细计费或转供电分摊纠纷场景才有必要，价格显著更高84% similar
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