Siemens 7SR105 Rho User Manual page 87

Insulation Resistance IEC/EN 60255-27: Edition 2:
2013-10
Protective Bonding IEC/EN 60255-27: Edition 2:
Resistance 2013-10
Protective Bonding IEC/EN 60255-27: Edition 2:
Continuity 2013-10
Flammability of IEC/EN 60255-27: Edition 2:
Insulating Materials, 2013-10
Components and Fire
enclosures
Single Fault Condition IEC/EN 60255-27: Edition 2:
2013-10
IEC 61010-1: 2010
Marking and
Documentation
Protection against
electric shock
Protection against
mechanical hazard
© 2018 Siemens Protection Devices
7SR105 Rho Performance Specification
Test voltage: 500 V DC
Test duration: > 5 s
Test voltage: < 12 V
AC/DC
Test duration: 1 min
Bonding resistance
Accessible conductive
parts should be bonded
with the protective
conductor terminal
Structure Part
Terminals
Terminal Mounting
Wiring (CT)
Components mounting
Enclosure
PCB
LCD
Assessment of:
• Insulation between
circuits and parts
• Compliance with
requirements for
protection against the
spread of fire
• Overloads
• Intermittently rated
resistors
• Compliance with
requirements for
mechanical protection
Clause No. 5
Clause No. 6
Clause No. 7
> 100 M ohm
< 0.1 Ohm
Low current
continuity test
Standard for
insulating material
of flammability
class
Class UL 94 V-0
Class UL 94 V-0
(N)2GFAF (VDE)
Class UL 94 V-0
Class UL 94 V-0
Class UL 94 V-0
Class UL 94 V-0
The equipment
shall not present
a risk of electric
shock or fire after
a single-fault test.
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Chapter 3 Page 11 of 17