UL 1037-2016 pdf download

UL 1037-2016 pdf download.Antitheft Alarms and Devices.
27 Input Test
27.1 The input of a product shall not exceed the marked current, power, or volt-ampere rating by more than 10 percent when the product is operated under all conditions of use while connected to a source of supply in accordance with the requirements in 27.2.
27.2 The test voltage for this test is to be the maximum rated voltage for the product. For a product having
a single voltage rating, such as 115 volts, maximum rated voltage is to be that single voltage. It the voltage
is given in terms of a range of voltages, such as 110 — 120 volts, the maximum rated voltage is the highest
value of the range.
27.3 If standby power is provided, the product is to be operated for a minimum of 4 hours, except as indicated in 58.12.
28 Output Measurement Test
28.1 The measured voltage of all output circuits shall be within 85 and 110 percent of their marked rating under the following conditions:
a) With primary power connected and varied from 85 percent to 110 percent of rated voltage. It a stancly battery is used, a fully charged battery shall be connected.
b) With primary power connected and vaned from 85 percent to 110 percent of rated voltage. If a stanck,y battery Is used, it shall be disconnected.
c) If a standby battery is used, the product shall be tested with the primary power
disconnected The standby battery shall be replaced with a variable voltage filtered DC power supply and the voltage varied from 85 percent to 110 percent of rated battery voltage.
28.2 Measurements shall be made with no load or with the minimum load that is specified by the manufacturer. It more than one output circuit is provided, all circuits shall have no load connected or the minimum load that is specified by the manufacturer connected to each circuit.
28.3 Upon completion of 28,2, measurements shall then be made with the maximum load connected to the output circuit. If more than one output circuit is provided, all circuits shall have the maximum load connected. It connecting the maximum load to each output Circuit will exceed the total output capacity of the product, the output circuit to be measured shall be loaded to its maximum rating and the other output circuits shall have their load adjusted so that the maximum output capacity of the product is reached. This shall be repeated for each output circuit
28.4 Rated load is that value of resistive load which causes the rated current to flow when the load is connected to the output circuit and the input voltage to the product is adjusted to its rated voltage.
28.5 The output circuits in an antitheft alarm or device shall be within the limits specified in Power-Limited Circuits, Section 29.
Exception: This requirement does not apply to an output circuit using a connecting device or other method recognized for high. voltage wiring, such as a 125 volt, 15 ampere, parallel blade receptacle.
29.2 Maximum voltage
29.2.1 With the circuit energized only from its rated primary power source, the output voltage of the circuit under test is to be measured while the circuit is connected to lull rated load and under open circuit conditions. The maximum voltage under these two conditions shall be considered V,. It the product incorporates a secondary source of supply, the test is to be repeated with the primary power source disconnected and with the circuit energized solely from the secondary power source. The value obtained from each power source shall be considered separately when applying the requirements in Table 29.1 or 29.2.
29.3 Maximum current
29.3.1 In order to determine compliance warn the l, limitation, a variable load resistor shall be connected across the circuit. While monitoring the current through the load resistor, the load resistor is to be adjusted from open circuit to short circuit as quickly as possible and the highest current noted. The load resistor is then to be readjusted to produce the highest current obtained and the current through the load resistor is to be measured after 1 minute or after 5 seconds as determined by Table 29.1 or 29.2.
29.3.2 It the maximum current through the load resistor cannot be maintained for 5 seconds due to current limiting devices (opening of thermal link, power supply foldback, PTC vanstor effect, and the like), the circuit load resistor is to be adjusted to a value that will produce a current just above the 1nlaz value indicated in Table 29.1 or Table 292. The results are in compliance if the lm value stated in Table 29.1 or Table 29.2 cannot be maintained for more than 5 seconds.
29.3.3 If a transformer limits the value of l,,., and if l, cannot be maintained for 1 minute due to transformer burnout, a plot of current versus time is to be generated and the graph extrapolated to 1 minute. The results are in compliance if the extrapolated value of 1 minute does not exceed the limitations as indicated in Table 29.1 or Table 29.2.