B&R MAPPC700A-ENG, Руководство пользователя

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362
Standards and certifications • Safety
Panel PC 700 with 945GME N270 CPU board User's Manual V 1.16
7. Safety
7.1 Ground resistance
7.2 Insulation resistance
Safety Test carried out according to Limits according to
Ground resistance EN 61131-2 EN 60204-1: Electrical equipment of machines
EN 61131-2: Programmable logic controllers
Insulation resistance EN 60204-1: Electrical equipment of machines
High voltage EN 60060-1 EN 61131-2: Programmable logic controllers
UL 508: Industrial control equipment
Residual voltage EN 61131-2 EN 60204-1: Electrical equipment of machines
EN 61131-2: Programmable logic controllers
Overload UL 508 EN 61131-2: Programmable logic controllers
UL 508: Industrial control equipment
Simulation component defect UL 508 EN 61131-2: Programmable logic controllers
UL 508: Industrial control equipment
Voltage range EN 61131-2: Programmable logic controllers
Table 194: Overview of limits and testing guidelines for safety
Test carried out according to
EN 61131-2 Limits according to
EN 60204-1
1)
1) See EN 60204-1:1997 page 62, table 9.
Limits according to
EN 61131-2
Ground resistance: housing (from
any metal part to the ground
terminal) Smallest effective cross section of
the protective ground conductor
for the branch being tested
Maximum measured voltage drop
at a test current of 10 A
Test current 30 A for 2 min,
<
0.1
Ω
1.0 mm² 3.3 V
1.5 mm² 2.6 V
2.5 mm² 1.9 V
4.0 mm² 1.4 V
>
6.0 mm² 1.0 V
Table 195: Test requirements - Ground resistance
Test carried out Limits according to
EN 60204-1
1)
1) See EN 60204-1:1997 page 62, table 9.
Insulation resistance: main circuits
to protective ground conductor
>
1 M
Ω
at 500 V DC voltage
Table 196: Test requirements - Insulation resistance