Information about potential hazards can be marked on the equipment or provided with the equipment, depending on the likelihood and severity of injury, or made available for service PERSONS. Three or more layers: During the tests of 4. Additionally, the test of 2. Compliance is checked by inspection and, where necessary, by the following test. Plugs and appliance inlets shall not be of a type that is used for AC mains supplies if a hazard could be created by their use.
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Additionally, the test of 2. For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2: Compliance is checked by inspection and, where necessary, by evaluation of the data for the material.
For undated references, the latest edition of the referenced document applies, including any corrigenda and amendment. The pollution has no influence. Faults that are the direct consequence of a simulated fault or abnormal operating condition are considered to be part of that simulated fault or abnormal operating condition. This current is measured after electric strength testing of the insulation with the bridging resistor or group of resistors in place.
If it is difficult to determine the effective capacitance and resistance values, a measurement of voltage decay at the point of external disconnection can be used. This air gap shall either have a minimum length equal to the minimum clearance specified in 2.
The coating process, the coating material and the base material shall be such that uniform quality is assured and the separation distances under consideration are effectively protected.
However, such parts shall be so located or guarded that unintentional contact is unlikely. Plugs and appliance inlets shall be so designed that reverse polarity connections are prevented if a hazard could be created by such connection.
Corrosion resistance can be achieved by a suitable plating or coating process. Each sample board shall be representative of the minimum separations used, and coated.
Fixed capacitors for electromagnetic interference suppression and connection to the supply mains lEC This marking or statement shall include the following or similar text: Damage to finish, cracks, dents and chips are disregarded if they do not adversely affect safety. Compliance is checked by inspection, by measurement and, where necessary, by the following test with the cord as delivered with the equipment.
IS 13252-1: Information Technology Equipment — Safety, Part 1: General Requirements
The tests are followed by inspection, including sectioning, and measurement. Compliance with tlie requirements of 2. However, if the protective earthing conductor is supplied with the equipment, it is permitted to include patt conductor in the test circuit but the measurement of the voltage drop is made only from the main protective earthing terminal to the part required to be earthed.
For parts 2001 voltage, U, exceeds 0,45 kV peak or d. However, appropriate markings and instructions shall be provided for protection against energy hazards if a hazardous energy level exists.
What is IS (Part-1) on iPhone – Apple Community
For these purposes, unwanted, externally generated, non-repetitive transient voltages for example, mains transient voltages and telecommunication network transient voltages 31252 by power distribution system switching and lightning surges, shall not be considered: See lEC GuideGuide on the safety of multimedia equipment.
Section 2 Needle flame test method — Apparatus, confirmatory 13522 arrangement and guidance first revision IS 41 Our one-stop shop services cover:. However, the 10 K margin is not added if the temperature is measured by an embedded thermocouple or by the resistance method. Where the terms “voltage” and “current” are used, they imply the r.
NOTE 1 General purpose incandescent and fluorescent lamps, with ordinary glass envelopes, are not considered to emit significant UV radiation.
Sectional specification for surge suppression varistors Graphical symbols — Safety colours and safety signs Plastics — Methods of exposure to laboratory light sources — Part 1: Inlet bushings, where used, shall – be reliably fixed, and – not be removable without the use of a tool. Steady state voltages up to 42,4 V peak, or 60Vd.
For double insulation between transformer windings, the short-circuit shall be assumed to take place at the point by which the highest working voltage is produced in the other insulation. NOTE External disconnect devices will not necessarily be supplied with the equipment. The test generator is connected between the telecommunication network terminals of the equipment.