Nortel DMS-100 Series Maintenance Manual page 360

11-14 Routine maintenance procedures
Testing wrist strap grounding cords
RLCM-EDC
(continued)
Testing wrist strap grounding cords
At your current location
1
2
3
4
297-8381-550 Standard 02.02 April 1999
Obtain an ohmmeter.
DANGER
Risk of electrocution
The grounding cord is safe to use if the cord resistance
measures higher than 800 kilohms. A lower resistance
exposes the person that wears the wrist strap to the
risk of electrocution if equipment short-circuits.
WARNING
Damage to electronic equipment
A grounding cord that has a resistance higher than
1200 kilohms cannot conduct enough static charges to
the ground. This cord does not protect sensitive
electronic equipment against build-ups of static
charges that can cause damage.
Detach the grounding cord from the wrist strap.
Measure the resistance between opposite ends of the grounding cord with the
ohmmeter.
If resistance
is between 800 kohms and 1200
kohms
is not between 800 kohms and
1200 kohms
You can use the grounding cord and wrist strap assembly. Assemble the wrist
strap to the grounding cord.
Go to step 6.
Do
step 4
step 5