參數(shù)資料
型號(hào)： P1553ACRP
英文描述： MCU CMOS 20 LD 4MHZ 1K FLASH, -40C to +85C, 20-SSOP 208mil, TUBE
中文描述： SIDAC的| 180V五（公報(bào)）最大| 800mA的我（縣）|對(duì)220VAR
文件頁數(shù)： 99/161頁
文件大小： 986K
代理商： P1553ACRP
SIDACtor
Data Book
UL 1950 3RD Edition/CSA C22.2 No. 950-95
Teccor Electronics
(972) 580-7777
4 - 25
R
R
5.
Spacing
- Applies to parts in the TNV circuits that might ignite under over-
voltage conditions. Spacing requirements mandate that parts be separated
from internal materials of flammability class V-2 or lower, by at least 25mm of
air or a barrier material of flammability class V-1 or better. Parts should also be
separated from openings in the top or sides of the enclosure by at least 25mm
of air or a material barrier.
6.
Over-Voltage Tests
- Equipment may be subject to the tests in Table 4-18 which
are designed to simulate contact with primary power, short term induction as a
result of a primary power fault to a multi-earth neutral, a long duration power
fault to ground, and direct contact between the power mains and a
telecommunications cable.
Figure 4-11 Over-Voltage Flowchart
Over-Voltage Test Procedures
The following criteria is used when applying the over-voltage tests found in Table 4-18:
1.
Test Set-Up
- Equipment is to be mounted as it is intended to be used. Tests
may be conducted on either the equipment as an assembly, individual
subassemblies, or a partial assembly containing those components which may
be exposed to an over-voltage condition.
2.
Indicators
- Before testing, two single pieces of cheesecloth are to be wrapped
tightly around the assembly, subassembly, or partial assembly. The
cheesecloth acts as an indicator for conditions that may result in fire.
No
No
No
No
No
Yes
2
-S
100 A
1a
No Overvoltage Testing
Connects to Outside Cable
Yes
Yes
Li1.3 A
1b
26 AWG
Yes
Pass 1
Yes
Pass 6.3.3
2
Fire Enclosure
3
Yes
Yes
Acceptable
EnFire
No
No
Yes
Pass 5
4
Pass 2
5
Yes
No
No
No
Yes
AccNot
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