Sinuo Testing Equipment Co. , Limited
Sinuo Testing Equipment Co., Limited
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IEC 61386-21 Figure 102 Gauge For Checking The Minimum Inside Diameter Of The Conduit System
Product information:
This gauge is the minimum inner diameter gauge for metal conduits and other materials after bending tests. When the sample is tested in IEC61386-21, clause 10.4.101 (one end of the sample is vertical and the other end is at a 45° angle to the vertical line), this gauge should pass through the sample with no initial velocity. Comply with the requirements of Clause 6.7.2 and Figure 12 of JG3050-1998 "Insulated Electrical Bushings and Accessories for Buildings", "GB 20041.21-2008 Conduit Systems for Cable Management - Special Requirements for Rigid Conduit Systems", GB/T14823.2 "Conduits for Electrical Installation" Special requirements - Rigid insulating material flat conduit", ZBG33008 "Polyvinyl chloride plastic corrugated wire conduit" and IEC61386-21 Section 10.4.101 and Figure 102 and IEC61386-22 Section 10.4.102 and Figure 102 and other requirements.
Technical parameters:
1. Material: steel, surface hard chromium plated
2. Gauge selection table (unit: mm)
| No. | Gauge D+0.05 0 | Sample nominal diameter | Minimum inner diameter of sample | Remark |
| Minimum inner diameter gauge of metal casing after bending: IEC61386-21 | ||||
| 1 | 10.2 | 16 | 12.75 | |
| 2 | 13.1 | 20 | 16.38 | |
| 3 | 16.8 | 25 | 21.0 | |
| Minimum inner diameter gauge of non-metallic casing after bending: IEC61386-22 | ||||
| 1 | 8.6 | 16 | 10.75 | |
| 2 | 11.3 | 20 | 14.13 | |
| 3 | 14.6 | 25 | 18.25 | |
| 4 | 19.4 | 32 | 24.25 | |
| 5 | 25.0 | 40 | 31.25 | |
| 6 | 31.7 | 50 | 39.63 | |
| 7 | 41 | 63 | 51.25 | |
| Note: Tolerance of other dimensions not specified is ±0.2mm, surface wear shall not exceed 0.01mm | ||||
3. There are 10 gauges in total, including 3 minimum inner diameter gauges for metal casing bending and 7 minimum inner diameter gauges for non-metal casing bending.