• Staubli Tec Systems India Private Limited

Adjustable Test Probes

Staubli Tec Systems India Pvt Ltd offers Adjustable Test Probes, with measurement categories according to IEC/EN 61010-031: 2008. To facilitate the assignment of test accessories to the appropriate applications, standard IEC/EN 61010-031 has established a number of categories, which define where they can be used in the power supply network and to lay down appropriate requirements for each category. Formerly (until 2002), the measurement categories now defined in standard IEC/EN 61010-031 were designated as over-voltage categories. This term originated from the fact that the classification was based primarily upon the over voltages (surges) that were likely to occur in the mains supply. Actually the measurement categories differ not so much in the level of the expected transient values as with regard to the available energy in each test category in the event of a short circuit. In a higher measurement category more energy can be re-leased than in a lower one, with results that may even have an explosive like character with very serious consequences for the user. In standard EN 61010-031 there are four different test categories, abbreviated "CAT". The category CAT followed by a number from I to IV is stated in the catalogues with the rated voltage, and also marked on the products. As a general rule, the higher the CAT rating, the higher the safety requirement that applies to the product. CAT I – applies to test objects that are not connected to the mains. From now on, CAT I will also include all test objects that cannot be assigned to CAT II to CAT IV; CAT II – applies to measurements on equipment that is connected to the mains or supplied from the mains without constituting a part of the mains installation; CAT III – applies to measurements inside the house or building installation; and CAT IV – applies to measurements at the supply source of the installation (input side).