类别 | 代号 | 分度号 | 套管外径 mm | 常用温度 ℃ | 允许偏差△t | |
测量范围℃ | 允差值 | |||||
镍铬—铜镍 | WREK | E | ≥Φ2 | 600 | 0~600 | ±2.5℃或±0.75%t |
镍铬—镍硅 | WREK | K | ≥Φ2 | 800 | 0~800 | ±2.5℃或±0.75%t |
铁—铜镍 | ERFK | J | ≥Φ2 | 750 | 0~750 | ±2.5℃或±0.75%t |
铜—铜镍 | ERCK | T | ≥Φ2 | 350 | -200~40 | ±1℃或±1.5%t |
-40~350 | ±1℃或±7.5%t |
热响应时间T0.5S | 接壳式 | 绝缘式 |
套管直径(mm) | ||
2.0 | 0.4 | 0.5 |
3.0 | 0.6 | 1.2 |
4.0 | 0.8 | 2.5 |
5.0 | 1.2 | 4.0 |
6.0 | 2.0 | 6.0 |
8.0 | 4.0 | 8.0 |
套管直径(mm) | 试验电压V-D.C | 绝缘电阻MΩ.m |
0.5~1.5 | 50±5 | ≥1000 |
>1.5 | 500±50 | ≥1000 |