本课只做一件事:拿「公式表与备考系统」做一次真实判断:按步骤走完,答案由推导得出而不是靠回忆。
Use Formula Sheet & Study System in one real decision: follow the steps, derive the answer instead of recalling it.
本课不涉及:不新讲概念,也不做多题连练——只走一个场景。
Not covered here: No new concepts, no question drills — one scenario, walked through.
本课目标 | Learning objectives
- 按三步走完一个场景,并说出每一步的依据
- 区分「更有效」与「更先做」两类答案
- 把结论写回自己的术语表
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场景走一遍 | Walk the scenario
一家 240 人的金属加工厂,去年总工时 480,000 小时。全年 5 起可记录病例:2 起缺勤(合计 14 个工作日)、1 起转岗(受限工作 30 天)、2 起仅做医疗处置未缺勤。厂长问:「我们算安全吗?」
A 240-person metal shop logged 480,000 hours last year with 5 recordable cases: 2 with days away (14 workdays total), 1 with restricted work for 30 days, 2 with medical treatment and no lost time. The plant manager asks: 'Are we safe?'
- 第一步:定分母——480,000 小时,不是 240 人,也不是 200,000 — Step 1 — fix the denominator: 480,000 hours, not 240 people and not 200,000
- 第二步:定分子——TRIR 用 5 起;DART 用 3 起(2 缺勤 + 1 转岗);LTIR 用 2 起 — Step 2 — fix the numerators: 5 for TRIR, 3 for DART (2 away + 1 restricted), 2 for LTIR
- 第三步:换算并回答——乘 200,000 ÷ 480,000 = 0.4167,得 TRIR 2.08、DART 1.25;再回答「算不算安全」:一年数据不足以判断趋势,要看三年与暴露构成 — Step 3 — scale by 200,000 ÷ 480,000 = 0.4167: TRIR 2.08, DART 1.25; then answer the real question — one year cannot establish a trend, so look at three years and the exposure mix
走完这三步再往下答题;答案不是背出来的,是按步骤推出来的。/ Work the three steps before answering — the answer is derived, not recalled.
情景自测 | Scenario check
应试技巧Exam technique
这道题考什么:考「先算对再回答」:既要知道数值,也要知道数值不能回答什么。
Tests compute-then-answer: knowing the number and knowing what it cannot tell you.
按上面三步,TRIR 与 DART 的数值是哪一组?
Following the three steps, which pair gives TRIR and DART?
自编练习题,不是 BCSP 官方真题,也不能用来预测分数。 / Original practice item, not an official BCSP exam question.
动手练 | Practice
1. 接着这个场景回答厂长:「算不算安全?」写出三句你能负责的话。
Answer the manager's question in three sentences you would stand behind.
2. 如果这 5 起里有 2 起是急救(first aid),TRIR 应改成多少?
If two of the five had been first-aid only, what would TRIR become?
学习打卡与笔记 | Progress & notes
已完成 0/4 项 / 0/4 tasks complete
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可靠来源 | Official references
BCSP — CSP Examination Blueprint (CSP11)
BCSP — Official Self-Assessments
BCSP — Certified Safety Professional (CSP)
Pearson VUE — CSP 考试预约 / Scheduling
本课为一般性学习资料,不替代现场专业评估、法规要求或组织程序。/ Educational content only.
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来自 昏昏睡睡HSE · From Drowsy HSE
CSP DAILY LEARNING · DAY 30