Maintenance Of Instation Test Set; Recommended Spares; Periodic Testing - Siemens TC12 Installation, Commissioning And Maintenance Handbook

4.8

MAINTENANCE OF INSTATION TEST SET

4.8.1 Recommended Spares

Switching the Test Set off, using the rocker switch on the front panel, does NOT
guarantee isolation from the mains.
The mains plug must only be fitted with a 3 A or 5 A fuse.
Recommended spares:
test jack cable
Kit of cables, part number 667/1/22705/000
667/7/15998/100
667/7/15998/101
9 Way D type Socket

4.8.2 Periodic Testing

Equipment must be regularly tested with a PAT (portable appliance tester).
Results must comply with the following limits OR with the values in the relevant
clauses of the IEE wiring regulations in force at the time if they are more stringent.
Earth bonding impedance <= 0.1 Ohms (Testing Case, Front panel and panel on
which PC sits).
Insulation impedance > 100 MOhms
Flash test impedance > 1 MOhms
Leakage during flash test < 3 ma
666/HE/43100/000
TC12 Installation, Commissioning & Maintenance Handbook
mains lead
Cable used when using test set as handset for controller etc
This is a 25 way male D-Type connector to 25 way male D-
Type connector with two metres of cable with straight
through connections with at least pins 1, 2, 3, 4, 5, 6, 7 and
20 connected.
Cable used when using test set as a monitor for Instation
PC
This is a 9 way female D-Type connector to 25 way male D-
Type connector with two metres of cable with the following
connections:
2
3
4
5
6
Page 156
25 Way D type plug
2
3
6
7
20
Issue 10