Engineering scope / 工程适用边界

A transparent calculation is still one part of an engineering decision.

How to interpret formulas, warnings, source labels, standard packs, and exported reports. / 如何理解公式、警告、来源标签、标准包与导出报告。

English

Use the displayed scope

Review every input, unit, electrical configuration, formula step, warning, result, and source-status label. A mathematically correct formula can still be misapplied when system conditions or assumptions are wrong.

Standard packs are versioned inputs

Country or standards packs must identify their publisher, edition, revision, scope, units, and validation status. A standard's name alone does not make reference values licensed, complete, current, or applicable to a project.

Source-status meanings

Demo: evaluation only; not suitable for construction or compliance decisions.
Verified: reviewed for the specifically identified source and scope, not universally approved.
User-provided: entered or imported by the user; independently verify against the original source.

Warnings are not exhaustive

Warnings highlight selected conditions that the calculator can detect. Their absence does not mean a design is safe, complete, coordinated, or compliant.

Reports preserve context, not authority

A PDF can preserve inputs, steps, result, warnings, source identity, and engine version. It documents a calculation; it is not a sealed engineering deliverable unless a qualified professional separately reviews and adopts it under applicable rules.

Required independent review

For real work, reconcile the result with the governing adopted code, authority having jurisdiction, approved drawings, protection and coordination studies, installation conditions, equipment listings, and manufacturer instructions.

简体中文

按界面显示的范围使用

请复核每个输入、单位、电气配置、公式步骤、警告、结果与来源状态。即使公式数学上正确，系统条件或假设错误也会导致误用。

标准包是有版本的输入数据

国家或标准数据包必须标识发布方、版本、修订、适用范围、单位与验证状态。仅出现标准名称，并不代表相关数据已获授权、完整、最新或适用于具体项目。

来源状态含义

演示：仅供评估，不适用于施工或符合性判断。
已验证：针对明确来源与范围完成复核，并非普遍批准。
用户提供：由用户输入或导入，必须对照原始资料独立验证。

警告不可能穷尽所有风险

警告只提示计算器能够识别的部分条件。没有警告，不代表设计安全、完整、协调或合规。

报告保留上下文，但不产生权威性

PDF 可保留输入、步骤、结果、警告、来源身份和引擎版本。它记录一次计算；除非合格专业人员按适用规则另行复核并采纳，否则不构成签章工程成果。