1. Introduction:
The IEC61032 international standard specifies details and dimensions of test probes intended to verify the protection provided by enclosure with regard to:
– protection of persons against access to hazardous parts inside the enclosure;
– protection of the equipment inside the enclosure against ingress of solid foreign objects.
2. The object of IEC61032 is:
– to bring together in one publication object probes and access probes currently specified in other standards, together with any necessary new probes;
– to guide technical committees in the selection of test probes;
– to encourage those concerned to specify test probes in accordance with those already specified in IEC61032 rather than modify details and dimensions;
– to limit the further proliferation of types of test probe.
3. Classification of test probes:
Test probes are classified as follows:
A) According to their designation
– IP code probes;
– other probes;
B) According to the kind of protection they are intended to check
– access probes;
– object probes;
C) According to the specific hazard they are intended to check
– probes mainly intended to be used to verify the protection of persons against access to hazardous live parts or hazardous mechanical parts;
– probes specifically intended to be used to verify the protection of persons against access to hazardous mechanical parts;
– probes mainly intended to be used to verify the protection of persons against access to internal parts involving thermal hazard, for instance internal hot or glowing parts;
– probes intended to be used to verify the protection of equipment against ingress of solid foreign objects.
4. List of test probes
1 | 2 | 3 | 4 |
Probe and application | Probe Name and Figure No. | Short description mm | Forces to be applied N |
Access probes of IEC60529 (IP code) To verify protection of persons against access to hazardous live parts or hazardous mechanical parts | Test Probe A (Figure 1) Test Probe B (Figure 2) Test Probe C (Figure 3) Test Probe D (Figure 4) | – Sphere: Ø50mm with handle – Jointed Test Finger – Rod: Ø2.5 – length 100 – Wire: Ø1.0 – length 100 | 50 10 3 1 |
Object probes of IEC60529 (IP code) To verify protection of equipment against ingress of solid foreign objects | Test Probe 1 (figure 5) Test Probe 2 (figure 6) | – Sphere: Ø50mm – Sphere: Ø12.5mm | 50 30 |
Other access probes to verify the protection of persons against access to hazardous live parts or hazardous mechanical parts | Test Probe 11 (Figure 7) Test Probe 12 (Figure 8) Test Probe 13 (Figure 9) Test probe 14 (Figure 10) Test Probe 17 (Figure 11) Test Probe 18 (Figure 12) Test Probe 19 (Figure 13) | – Unjointed test finger – Cylindrical pin:Ø4 – length 50 – Conical pin: Ø3 to 4 – length 15 – Bar: 3*1 – Wire: Ø0.5 – Small finger probe: Ø8.6-length 57.9 – Small finger probe: Ø5.6-length 44 | 50 * * 20 * 10 10 |
Other access probes to verify protection of persons against access to hazardous mechanical parts | Test Probe 31 (Figure 14) Test Probe 32 (Figure 15) | – Cone: Ø110/60 – Rod: Ø25 | 50 30 |
Other access probes to verify protection of persons against access to hot or glowing parts | Test Probe 41 (Figure 16) Test Probe 43 (Figure 17) | – Probe: Ø30 – Bar: 50*5 | * * |
