Exhibit J - MBSG Test Report.pdf
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Prepared By:
Chris Espartero Sr Field Service Representative
North America Service Operations
Houston, TX
MBSG Substation PM
May 24, 2021
Work Order: 08391081
2 | P a g e
EXECUTIVE SUMMARY
Schneider Electric Services perform medium voltage HVL switch PM in accordance with project specification and applicable industry standard on MBSG Substation located at VA loading duct tunnel 2002 Holcombe Blvd Houston, Texas 77030. The site contact for this project was Joe
Ceasar of VA Medical Center Electrical Power Distribution Department (713)806-7506.
MBSG Spare 2 medium voltage air switch is missing a stationary and moving contact. B-Phase insulation barrier is also missing. Switch needs to be repaired or replaced.
If there are any questions or concerns, please contact:
Chris Espartero
832-205-1547
Christopher.Espartero@se.com
20°C
MEDIUM VOLTAGE AIR SWITCH
TEMPERATURE 82 °F
PAGE
END USER
CUSTOMER
2002 HOLCOMBE BLVD.
DEPARTMENT OF VETERAN AFFAIRS
SITE LOCATION
MBSGDESIGNATION
SUBSTATION BUILDING 100
05/22/2021 96
JOB #
DBID
END USER ASSET/ID
HUMIDITYDATE
TESTED BYELEMENT
SUB-ELEMENT
DEVICE
EQUIPMENT USED
BC-100A (RB)
Cory Llewellyn
N/A
N/A
VA Hospital WO-08391081
C & L
C & L N/A
MATCHES DWG OR SPEC
GROUND CONNECTION
COUNTER READING AF/AL
ARCING CONTACTS
HEATER CIRCUIT
MAIN CONTACTS
CUBICLE
CLEAN/LUBE Description CLEAN/LUBECONDITION
Acceptable
Acceptable
Acceptable
N/A
N/A
CONTROL CIRCUIT
FUSE HOLDERS
CONDITIONDescription CLEAN/LUBE
N/AN/A
Description
Cleaned
Cleaned
N/AOPERATING MECHANISM C & L
PHASE BARRIERS Acceptable Cleaned
N/AAUXILIARY DEVICES
ARC CHUTES Acceptable Cleaned N/AINTERLOCKS N/A N/AINS. LINKAGES / BRACES
OVERALL CONDITION Acceptable
CONDITION
N/A
N/A
Acceptable
Acceptable
Acceptable
SWITCH NAMEPLATE
INSPECTION
CONTROL WIRING
MEG-OHMS
06060, REVISED 10/19/2020(888) 778-2733 www.schneider-electric.us
@500V
INSULATION RESISTANCE IN:
N/A
MANUFACTURER
RATED CURRENT INT. RATING
N/A
44035-241-51
15 kv
SN / SO NO.
RATED VOLTAGE
CATALOG NO.
MAX. VOLTAGE BIL RATING
TYPE / STYLE N/A
95KV
N/A
ADDITIONAL INFO
PICKUP VOLTS PICKUP VOLTS
ADDITIONAL INFO
VOLT RANGE VOLT RANGE
PICKUP VOLTS
VOLT RANGE
ADDITIONAL INFO
DROP-OUT VOLTS
CHARGING MOTOR INFORMATION
N/A
CLOSE COIL INFORMATION
N/A N/A VoltsVolts
PICKUP VOLTS
Volts
TRIP COIL INFORMATION
Volts
ADDITIONAL INFO
VOLT RANGE
N/A
OPTIONAL INFORMATION
TEST RESULTS
MANUF. DATE
FUSE AMPSN/AFUSE MFG. N/A FUSE CAT. NO. N/A
@1000VMEG-OHMS 20°C
TEST 1
TEST 3
1.4348TEMPERATURE CORRECTION FACTOR TO 20°C, TCF
TEST 2
INSULATION RESISTANCE IN: CLOSED: POLE-POLE
20°C ACTUAL
PH A
ACTUALACTUAL
A - B A-GND
CLOSED: POLE-GROUND OPEN: LINE-LOAD
20°C
PH B
PH C
B-GND
C-GND
B - C
C - A
15 kv
Square D
RANGE
(µ-ohms) 28
POLE 2 POLE 3CONTACT RESISTANCE MEASUREMENTS
BYPASS CONTACT RESISTANCE at
POLE 1
28 25
TECH NOTE(S): Did not perform insulation resistance test due to other electrical equipment and cables connected to switch.
COMMENTS:
DEFICIENCIES:
TEMPERATURE 82 °F
PAGE
END USER
CUSTOMER
2002 HOLCOMBE BLVD.
DEPARTMENT OF VETERAN AFFAIRS
SITE LOCATION
MBSGDESIGNATION
SUBSTATION BUILDING 100
05/22/2021 96
JOB #
DBID
END USER ASSET/ID
HUMIDITYDATE
TESTED BYELEMENT
SUB-ELEMENT
DEVICE
EQUIPMENT USED
BC-100A (A1)
Cory Llewellyn
N/A
N/A
VA Hospital WO-08391081
C & L
C & L N/A
MATCHES DWG OR SPEC
GROUND CONNECTION
COUNTER READING AF/AL
ARCING CONTACTS
HEATER CIRCUIT
MAIN CONTACTS
CUBICLE
CLEAN/LUBE Description CLEAN/LUBECONDITION
Acceptable
Acceptable
Acceptable
N/A
N/A
CONTROL CIRCUIT
FUSE HOLDERS
CONDITIONDescription CLEAN/LUBE
N/AN/A
Description
Cleaned
Cleaned
N/AOPERATING MECHANISM C & L
PHASE BARRIERS Acceptable Cleaned
N/AAUXILIARY DEVICES
ARC CHUTES N/A Cleaned N/AINTERLOCKS N/A N/AINS. LINKAGES / BRACES
OVERALL CONDITION Acceptable
CONDITION
N/A
N/A
Acceptable
Acceptable
Acceptable
SWITCH NAMEPLATE
INSPECTION
CONTROL WIRING
MEG-OHMS
06060, REVISED 10/19/2020(888) 778-2733 www.schneider-electric.us
@500V
INSULATION RESISTANCE IN:
N/A
MANUFACTURER
RATED CURRENT INT. RATING
N/A
44035-241-51
15 kv
SN / SO NO.
RATED VOLTAGE
CATALOG NO.
MAX. VOLTAGE BIL RATING
TYPE / STYLE N/A
95KV
N/A
ADDITIONAL INFO
PICKUP VOLTS PICKUP VOLTS
ADDITIONAL INFO
VOLT RANGE VOLT RANGE
PICKUP VOLTS
VOLT RANGE
ADDITIONAL INFO
DROP-OUT VOLTS
CHARGING MOTOR INFORMATION
N/A
CLOSE COIL INFORMATION
N/A N/A VoltsVolts
PICKUP VOLTS
Volts
TRIP COIL INFORMATION
Volts
ADDITIONAL INFO
VOLT RANGE
N/A
OPTIONAL INFORMATION
TEST RESULTS
MANUF. DATE
FUSE AMPSN/AFUSE MFG. N/A FUSE CAT. NO. N/A
@1000VMEG-OHMS 20°C
TEST 1
TEST 3
1.4348TEMPERATURE CORRECTION FACTOR TO 20°C, TCF
TEST 2
INSULATION RESISTANCE IN: CLOSED: POLE-POLE
20°C ACTUAL
PH A
ACTUALACTUAL
A - B A-GND
CLOSED: POLE-GROUND OPEN: LINE-LOAD
20°C
PH B
PH C
B-GND
C-GND
B - C
C - A
15 kv
Square D
RANGE
(µ-ohms) 63
POLE 2 POLE 3CONTACT RESISTANCE MEASUREMENTS
BYPASS CONTACT RESISTANCE at
POLE 1
73 81
TECH NOTE(S): Did not perform insulation resistance test due to other electrical equipment and cables connected to switch.
TEMPERATURE 82 °F
PAGE
END USER
CUSTOMER
2002 HOLCOMBE BLVD.
DEPARTMENT OF VETERAN AFFAIRS
SITE LOCATION
MBSGDESIGNATION
SUBSTATION BUILDING 100
05/22/2021 96
JOB #
DBID
END USER ASSET/ID
HUMIDITYDATE
TESTED BYELEMENT
SUB-ELEMENT
DEVICE
EQUIPMENT USED
BC-100A (RA)
Cory Llewellyn
N/A
N/A
VA Hospital WO-08391081
C & L
C & L N/A
MATCHES DWG OR SPEC
GROUND CONNECTION
COUNTER READING AF/AL
ARCING CONTACTS
HEATER CIRCUIT
MAIN CONTACTS
CUBICLE
CLEAN/LUBE Description CLEAN/LUBECONDITION
Acceptable
Acceptable
Acceptable
N/A
N/A
CONTROL CIRCUIT
FUSE HOLDERS
CONDITIONDescription CLEAN/LUBE
N/AN/A
Description
Cleaned
Cleaned
N/AOPERATING MECHANISM C & L
PHASE BARRIERS Acceptable Cleaned
N/AAUXILIARY DEVICES
ARC CHUTES Acceptable Comment N/AINTERLOCKS N/A N/AINS. LINKAGES / BRACES
OVERALL CONDITION Acceptable
CONDITION
N/A
N/A
Acceptable
Acceptable
Acceptable
SWITCH NAMEPLATE
INSPECTION
CONTROL WIRING
MEG-OHMS
06060, REVISED 10/19/2020(888) 778-2733 www.schneider-electric.us
@500V
INSULATION RESISTANCE IN:
N/A
MANUFACTURER
RATED CURRENT INT. RATING
N/A
44035-241-51
15 kv
SN / SO NO.
RATED VOLTAGE
CATALOG NO.
MAX. VOLTAGE BIL RATING
TYPE / STYLE N/A
95KV
N/A
ADDITIONAL INFO
PICKUP VOLTS PICKUP VOLTS
ADDITIONAL INFO
VOLT RANGE VOLT RANGE
PICKUP VOLTS
VOLT RANGE
ADDITIONAL INFO
DROP-OUT VOLTS
CHARGING MOTOR INFORMATION
N/A
CLOSE COIL INFORMATION
N/A N/A VoltsVolts
PICKUP VOLTS
Volts
TRIP COIL INFORMATION
Volts
ADDITIONAL INFO
VOLT RANGE
N/A
OPTIONAL INFORMATION
TEST RESULTS
MANUF. DATE
FUSE AMPSN/AFUSE MFG. N/A FUSE CAT. NO. N/A
@1000VMEG-OHMS 20°C
TEST 1
TEST 3
1.4348TEMPERATURE CORRECTION FACTOR TO 20°C, TCF
TEST 2
INSULATION RESISTANCE IN: CLOSED: POLE-POLE
20°C ACTUAL
PH A
ACTUALACTUAL
A - B A-GND
CLOSED: POLE-GROUND OPEN: LINE-LOAD
20°C
PH B
PH C
B-GND
C-GND
B - C
C - A
15 kv
Square D
RANGE
(µ-ohms) 28
POLE 2 POLE 3CONTACT RESISTANCE MEASUREMENTS
BYPASS CONTACT RESISTANCE at
POLE 1
25 25
TECH NOTE(S): Did not perform insulation resistance test due to other electrical equipment and cables connected to switch.
COMMENTS: Tested PT to verify it wasn't bad.
TEMPERATURE 82 °F
PAGE
END USER
CUSTOMER
2002 HOLCOMBE BLVD.
DEPARTMENT OF VETERAN AFFAIRS
SITE LOCATION
MBSGDESIGNATION
SUBSTATION BUILDING 100
05/22/2021 96
JOB #
DBID
END USER ASSET/ID
HUMIDITYDATE
TESTED BYELEMENT
SUB-ELEMENT
DEVICE
EQUIPMENT USED
BC-100A SPARE-1
Cory Llewellyn
N/A
N/A
VA Hospital WO-08391081
Cleaned
Cleaned N/A
MATCHES DWG OR SPEC
GROUND CONNECTION
COUNTER READING AF/AL
ARCING CONTACTS
HEATER CIRCUIT
MAIN CONTACTS
CUBICLE
CLEAN/LUBE Description CLEAN/LUBECONDITION
Acceptable
Acceptable
Acceptable
N/A
N/A
CONTROL CIRCUIT
FUSE HOLDERS
CONDITIONDescription CLEAN/LUBE
N/AN/A
Description
Cleaned
Cleaned
N/AOPERATING MECHANISM C & L
PHASE BARRIERS Acceptable Cleaned
N/AAUXILIARY DEVICES
ARC CHUTES Acceptable Deficiency N/AINTERLOCKS N/A N/AINS. LINKAGES / BRACES
OVERALL CONDITION Acceptable
CONDITION
N/A
N/A
Acceptable
Acceptable
Acceptable
SWITCH NAMEPLATE
INSPECTION
CONTROL WIRING
MEG-OHMS
06060, REVISED 10/19/2020(888) 778-2733 www.schneider-electric.us
@500V
INSULATION RESISTANCE IN:
N/A
MANUFACTURER
RATED CURRENT INT. RATING
N/A
44035-241-51
15 kv
SN / SO NO.
RATED VOLTAGE
CATALOG NO.
MAX. VOLTAGE BIL RATING
TYPE / STYLE N/A
95KV
N/A
ADDITIONAL INFO
PICKUP VOLTS PICKUP VOLTS
ADDITIONAL INFO
VOLT RANGE VOLT RANGE
PICKUP VOLTS
VOLT RANGE
ADDITIONAL INFO
DROP-OUT VOLTS
CHARGING MOTOR INFORMATION
N/A
CLOSE COIL INFORMATION
N/A N/A VoltsVolts
PICKUP VOLTS
Volts
TRIP COIL INFORMATION
Volts
ADDITIONAL INFO
VOLT RANGE
N/A
OPTIONAL INFORMATION
TEST RESULTS
MANUF. DATE
FUSE AMPSN/AFUSE MFG. N/A FUSE CAT. NO. N/A
@1000VMEG-OHMS 20°C
TEST 1
TEST 3
1.4348TEMPERATURE CORRECTION FACTOR TO 20°C, TCF
TEST 2
INSULATION RESISTANCE IN: CLOSED: POLE-POLE
20°C ACTUAL
PH A
ACTUALACTUAL
A - B A-GND
CLOSED: POLE-GROUND OPEN: LINE-LOAD
20°C
PH B
PH C
B-GND
C-GND
B - C
C - A
15 kv
Square D
RANGE
(µ-ohms) 36
POLE 2 POLE 3CONTACT RESISTANCE MEASUREMENTS
BYPASS CONTACT RESISTANCE at 100 A
POLE 1
40 38
TECH NOTE(S):
COMMENTS: Did not perform insulation resistance test due to other electrical equipment and cables connected to switch.
TEMPERATURE 82 °F
PAGE
END USER
CUSTOMER
2002 HOLCOMBE BLVD.
DEPARTMENT OF VETERAN AFFAIRS
SITE LOCATION
MBSGDESIGNATION
SUBSTATION BUILDING 100
05/22/2021 96
JOB #
DBID
END USER ASSET/ID
HUMIDITYDATE
TESTED BYELEMENT
SUB-ELEMENT
DEVICE
EQUIPMENT USED
BC-100A SPARE-2
Cory Llewellyn
N/A
N/A
VA Hospital WO-08391081
Cleaned
Cleaned N/A
MATCHES DWG OR SPEC
GROUND CONNECTION
COUNTER READING AF/AL
ARCING CONTACTS
HEATER CIRCUIT
MAIN CONTACTS
CUBICLE
CLEAN/LUBE Description CLEAN/LUBECONDITION
Acceptable
Acceptable
Acceptable
N/A
N/A
CONTROL CIRCUIT
FUSE HOLDERS
CONDITIONDescription CLEAN/LUBE
N/AN/A
Description
Cleaned
Cleaned
N/AOPERATING MECHANISM C & L
PHASE BARRIERS Deficiency Cleaned
N/AAUXILIARY DEVICES
ARC CHUTES Acceptable Cleaned N/AINTERLOCKS N/A N/AINS. LINKAGES / BRACES
OVERALL CONDITION Deficiency
CONDITION
N/A
N/A
Acceptable
Acceptable
Acceptable
SWITCH NAMEPLATE
INSPECTION
CONTROL WIRING
MEG-OHMS
06060, REVISED 10/19/2020(888) 778-2733 www.schneider-electric.us
@500V
INSULATION RESISTANCE IN:
N/A
MANUFACTURER
RATED CURRENT INT. RATING
N/A
44035-241-51
15 kv
SN / SO NO.
RATED VOLTAGE
CATALOG NO.
MAX. VOLTAGE BIL RATING
TYPE / STYLE N/A
95KV
N/A
ADDITIONAL INFO
PICKUP VOLTS PICKUP VOLTS
ADDITIONAL INFO
VOLT RANGE VOLT RANGE
PICKUP VOLTS
VOLT RANGE
ADDITIONAL INFO
DROP-OUT VOLTS
CHARGING MOTOR INFORMATION
N/A
CLOSE COIL INFORMATION
N/A N/A VoltsVolts
PICKUP VOLTS
Volts
TRIP COIL INFORMATION
Volts
ADDITIONAL INFO
VOLT RANGE
N/A
OPTIONAL INFORMATION
TEST RESULTS
MANUF. DATE
FUSE AMPSN/AFUSE MFG. N/A FUSE CAT. NO. N/A
@1000VTERA-OHMS 20°C
TEST 1
TEST 3
1.4348TEMPERATURE CORRECTION FACTOR TO 20°C, TCF
TEST 2
INSULATION RESISTANCE IN: CLOSED: POLE-POLE
4.8
20°C ACTUAL
PH A
ACTUALACTUAL
A - B A-GND
CLOSED: POLE-GROUND OPEN: LINE-LOAD
20°C
PH B
PH C
B-GND
C-GND
B - C
C - A
11.9
6.0
4.8
15 kv
Square D
RANGE
(µ-ohms) 42
POLE 2 POLE 3CONTACT RESISTANCE MEASUREMENTS
BYPASS CONTACT RESISTANCE at
POLE 1
TECH NOTE(S):
COMMENTS: Switch needed to be repair or replace.
DEFICIENCIES: C-Phase of the switch is missing and B-Phase barrier is broken. Switch can not be put in service.
TEMPERATURE 82 °F
PAGE
END USER
CUSTOMER
2002 HOLCOMBE BLVD.
DEPARTMENT OF VETERAN AFFAIRS
SITE LOCATION
MBSGDESIGNATION
SUBSTATION BUILDING 100
05/22/2021 96
JOB #
DBID
END USER ASSET/ID
HUMIDITYDATE
TESTED BYELEMENT
SUB-ELEMENT
DEVICE
EQUIPMENT USED
BC-100A (B1)
Cory Llewellyn
N/A
N/A
VA Hospital WO-08391081
C & L
C & L N/A
MATCHES DWG OR SPEC
GROUND CONNECTION
COUNTER READING AF/AL
ARCING CONTACTS
HEATER CIRCUIT
MAIN CONTACTS
CUBICLE
CLEAN/LUBE Description CLEAN/LUBECONDITION
Acceptable
Acceptable
Acceptable
N/A
N/A
CONTROL CIRCUIT
FUSE HOLDERS
CONDITIONDescription CLEAN/LUBE
N/AN/A
Description
Cleaned
Cleaned
N/AOPERATING MECHANISM C & L
PHASE BARRIERS Acceptable Cleaned
N/AAUXILIARY DEVICES
ARC CHUTES N/A Cleaned N/AINTERLOCKS N/A N/AINS. LINKAGES / BRACES
OVERALL CONDITION Acceptable
CONDITION
N/A
N/A
Acceptable
Acceptable
Acceptable
SWITCH NAMEPLATE
INSPECTION
CONTROL WIRING
MEG-OHMS
06060, REVISED 10/19/2020(888) 778-2733 www.schneider-electric.us
@500V
INSULATION RESISTANCE IN:
N/A
MANUFACTURER
RATED CURRENT INT. RATING
N/A
44035-241-51
15 kv
SN / SO NO.
RATED VOLTAGE
CATALOG NO.
MAX. VOLTAGE BIL RATING
TYPE / STYLE N/A
95KV
N/A
ADDITIONAL INFO
PICKUP VOLTS PICKUP VOLTS
ADDITIONAL INFO
VOLT RANGE VOLT RANGE
PICKUP VOLTS
VOLT RANGE
ADDITIONAL INFO
DROP-OUT VOLTS
CHARGING MOTOR INFORMATION
N/A
CLOSE COIL INFORMATION
480 VAC N/A VoltsVolts
PICKUP VOLTS
Volts
TRIP COIL INFORMATION
Volts
ADDITIONAL INFO
VOLT RANGE
N/A
OPTIONAL INFORMATION
TEST RESULTS
MANUF. DATE
FUSE AMPSN/AFUSE MFG. N/A FUSE CAT. NO. N/A
@1000VMEG-OHMS 20°C
TEST 1
TEST 3
1.4348TEMPERATURE CORRECTION FACTOR TO 20°C, TCF
TEST 2
INSULATION RESISTANCE IN: CLOSED: POLE-POLE
20°C ACTUAL
PH A
ACTUALACTUAL
A - B A-GND
CLOSED: POLE-GROUND OPEN: LINE-LOAD
20°C
PH B
PH C
B-GND
C-GND
B - C
C - A
15 kv
Square D
RANGE
(µ-ohms) 28
POLE 2 POLE 3CONTACT RESISTANCE MEASUREMENTS
BYPASS CONTACT RESISTANCE at
POLE 1
27 25
TECH NOTE(S): Did not perform insulation resistance test due to other electrical equipment and cables connected to switch.
TEMPERATURE 82 °F
PAGE
END USER
CUSTOMER
2002 HOLCOMBE BLVD.
DEPARTMENT OF VETERAN AFFAIRS
SITE LOCATION
MBSGDESIGNATION
SUBSTATION BUILDING 100
05/22/2021 96
JOB #
DBID
END USER ASSET/ID
HUMIDITYDATE
TESTED BYELEMENT
SUB-ELEMENT
DEVICE
EQUIPMENT USED
BC-100A (B2)
Cory Llewellyn
N/A
N/A
VA Hospital WO-08391081
C & L
C & L N/A
MATCHES DWG OR SPEC
GROUND CONNECTION
COUNTER READING AF/AL
ARCING CONTACTS
HEATER CIRCUIT
MAIN CONTACTS
CUBICLE
CLEAN/LUBE Description CLEAN/LUBECONDITION
Acceptable
Acceptable
Acceptable
N/A
N/A
CONTROL CIRCUIT
FUSE HOLDERS
CONDITIONDescription CLEAN/LUBE
N/AN/A
Description
Cleaned
Cleaned
N/AOPERATING MECHANISM C & L
PHASE BARRIERS Acceptable Cleaned
N/AAUXILIARY DEVICES
ARC CHUTES N/A N/A N/AINTERLOCKS N/A N/AINS. LINKAGES / BRACES
OVERALL CONDITION Acceptable
CONDITION
N/A
N/A
Acceptable
Acceptable
Acceptable
SWITCH NAMEPLATE
INSPECTION
CONTROL WIRING
MEG-OHMS
06060, REVISED 10/19/2020(888) 778-2733 www.schneider-electric.us
@500V
INSULATION RESISTANCE IN:
N/A
MANUFACTURER
RATED CURRENT INT. RATING
N/A
44035-241-51
15 kv
SN / SO NO.
RATED VOLTAGE
CATALOG NO.
MAX. VOLTAGE BIL RATING
TYPE / STYLE N/A
95KV
N/A
ADDITIONAL INFO
PICKUP VOLTS PICKUP VOLTS
ADDITIONAL INFO
VOLT RANGE VOLT RANGE
PICKUP VOLTS
VOLT RANGE
ADDITIONAL INFO
DROP-OUT VOLTS
CHARGING MOTOR INFORMATION
N/A
CLOSE COIL INFORMATION
N/A N/A VoltsVolts
PICKUP VOLTS
Volts
TRIP COIL INFORMATION
Volts
ADDITIONAL INFO
VOLT RANGE
N/A
OPTIONAL INFORMATION
TEST RESULTS
MANUF. DATE
FUSE AMPSN/AFUSE MFG. N/A FUSE CAT. NO. N/A
@1000VMEG-OHMS 20°C
TEST 1
TEST 3
1.4348TEMPERATURE CORRECTION FACTOR TO 20°C, TCF
TEST 2
INSULATION RESISTANCE IN: CLOSED: POLE-POLE
20°C ACTUAL
PH A
ACTUALACTUAL
A - B A-GND
CLOSED: POLE-GROUND OPEN: LINE-LOAD
20°C
PH B
PH C
B-GND
C-GND
B - C
C - A
15 kv
Square D
RANGE
(µ-ohms) 33
POLE 2 POLE 3CONTACT RESISTANCE MEASUREMENTS
BYPASS CONTACT RESISTANCE at
POLE 1
31 29
TECH NOTE(S): Did not perform insulation resistance test due to other electrical equipment and cables connected to switch.
File details come from the government source that posted it. Updated .