Unverified85% confidenceDecision RuleTime unknown
计量精度看等级：居民计费用1.0级（误差±1%）足够，工商业结算或分时电价核算建议0.5S级（±0.5%），需要功率因数/谐波分析的场景选0.2S级
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified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88% similarUnverified数据采集精度选1级（±1%）足够家用计费参考，若用于光伏发电结算或分时电价套利分析需选0.5级（±0.5%）计量精度87% similarUnverified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86% similarUnverified选购精度等级时看铭牌标注：居民计费用1级表(误差±1%)足够，商业分项计量或需精细监测能耗建议选0.5S级(误差±0.5%)86% 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86% similar
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