Search Results - Mike Holt's Forum

Equipment separation: 4 kV switch gear near a 208 V UPS question

Started by jucesanc on 04-03-19

Replies: 0
Views: 206

Last Post By:: Last Post: 04-03-19 01:28 PM; by jucesanc

Forum:
General Electrical Forum

Small Induction Motor Short Circuit Contribution

Started by ish1284 on 03-14-19

fault, induction motor, low voltage, motor contributions, short circuit

Replies: 1
Views: 287

Last Post By:: Last Post: 03-14-19 02:15 PM; by ron

Forum:
Electrical Calculations / Engineering

Impact of Short Circuit x/r Ratio on Circuit Breaker

Started by ish1284 on 06-27-18

circuit breaker, low voltage, short circuit, test pf, test x/r

Replies: 3
Views: 966

Last Post By:: Last Post: 06-28-18 09:40 AM; by kingpb

Forum:
Electrical Calculations / Engineering

Number of Splicing allowed by NEC

Started by Khaledhn on 06-25-18

Replies: 6
Views: 1,406

Last Post By:: Last Post: 06-29-18 07:41 PM; by sameguy

Forum:
NEC

Arc-flash hazard calculations in sectionalized switchgear/switchboards

Started by ish1284 on 04-17-18

arc-flash, incident energy, low voltage, switchboard, switchgear

Replies: 1
Views: 838

Last Post By:: Last Post: 04-17-18 12:17 PM; by ron

Forum:
Electrical Calculations / Engineering

European treadmills on 208v

Started by Guanac on 03-13-18

3 Pages •: 1 2 3

Replies: 27
Views: 3,407

Last Post By:: Last Post: 03-14-18 09:01 PM; by Jraef

Forum:
General Electrical Forum

Combine 2 separate 120V iso-transformers, tie secondaries in series,isolate primaries

Started by mmontoya on 10-05-17

2 Pages •: 1 2

120vac, 240v, low voltage, nec, transformer

Replies: 12
Views: 3,186

Last Post By:: Last Post: 10-05-17 08:55 PM; by steve66

Forum:
Electrical Calculations / Engineering

CABLE BOX EXPLOSION NEAR METER

Started by Cybatrex on 09-20-17

coaxial, danger, explosion, lightning, low voltage

Replies: 9
Views: 2,177

Last Post By:: Last Post: 09-21-17 12:21 AM; by Netpog

Forum:
General Electrical Forum

Splicing 24 VDC Signal Wiring

Started by BFritz on 06-22-17

instrumentation, low voltage, signal, splice

Replies: 7
Views: 2,199

Last Post By:: Last Post: 06-23-17 01:39 PM; by GoldDigger

Forum:
NEC

Aerial Conduit Between Buildings

Started by rgnkenpo on 02-27-17

building to building, conduit, low voltage

Replies: 5
Views: 2,675

Last Post By:: Last Post: 02-28-17 12:17 PM; by hbiss

Forum:
Low Voltage and Limited Energy

51.4 volts on 3-way receptacle

Started by jonathankpa on 01-26-16

4 Pages •: 1 2 3 ... 4

Replies: 35
Views: 9,079

Last Post By:: Last Post: 01-27-16 11:28 PM; by jonathankpa

Forum:
General Electrical Forum

Grounding a metal box used for low-voltage wiring

Started by lechner on 11-07-15

Replies: 2
Views: 3,593

Last Post By:: Last Post: 11-08-15 01:14 PM; by kwired

Forum:
Bonding and Grounding

480VAC transformer used at 380VAC

Started by hublanc on 10-15-15

Replies: 4
Views: 3,363

Last Post By:: Last Post: 10-15-15 08:10 AM; by gar

Forum:
Electrical Calculations / Engineering

Reference Licensing

Started by Eh40 on 04-03-15

Replies: 6
Views: 4,219

Last Post By:: Last Post: 04-10-15 02:57 PM; by Eh40

Forum:
Business Management / Estimating

ARC Flash Labeling requirements for Portable machinery, 240/208VAC panels

Started by francis.key19 on 10-23-14

arc flash, low voltage, nfpa70e, portable equipment

Replies: 1
Views: 3,727

Last Post By:: Last Post: 10-23-14 10:11 PM; by wbdvt

Forum:
Safety

Voltage on ground of coax

Started by jwilson1982 on 06-24-13

Replies: 5
Views: 9,652

Last Post By:: Last Post: 07-29-13 05:57 PM; by jacobsond

Forum:
Low Voltage and Limited Energy

Low Voltage LED signage lighting

Started by neonman on 02-16-13

Replies: 2
Views: 3,250

Last Post By:: Last Post: 02-22-13 12:13 PM; by tleaf28

Forum:
Lighting

VFD driven Motors

Started by shailesh_excl on 11-15-12

Replies: 1
Views: 3,169

Last Post By:: Last Post: 11-15-12 09:39 PM; by petersonra

Forum:
NEC

TECL required at Refinery, Gas, chemical plants, for low voltage installations.

Started by JD_control_spark on 10-24-12

Replies: 1
Views: 2,816

Last Post By:: Last Post: 10-25-12 09:30 AM; by petersonra

Forum:
Business Management / Estimating

Chrome Plating Question- Nec 2008

Started by Cody AV on 09-27-12

Replies: 2
Views: 3,691

Last Post By:: Last Post: 09-27-12 04:57 PM; by Smart $

Forum:
Low Voltage and Limited Energy

UL rating on Electronic switches.

Started by tjatwood on 08-19-12

ce listing, data, low voltage, ul listing

Replies: 9
Views: 8,903

Last Post By:: Last Post: 08-19-12 01:26 PM; by tjatwood

Forum:
Low Voltage and Limited Energy

plastic boxes for low volt in a 18 story commercial building

Started by jwilson1982 on 03-21-12

code, fire alarm, low voltage, multi story building, plastic boxes

Replies: 3
Views: 5,050

Last Post By:: Last Post: 03-23-12 08:43 PM; by chris kennedy

Forum:
Low Voltage and Limited Energy

Motion Sensor Lighting Control for Transformer

Started by cws on 10-26-11

low voltage, motion sensor, outdoor lighting, transformer

Replies: 4
Views: 6,084

Last Post By:: Last Post: 10-29-11 03:30 PM; by copper chopper

Forum:
Lighting

Conductors for Class 1 Circuits - Article 725.49(B)

Started by sirdle on 04-05-11

article 725, class 1, insulation, low voltage

Replies: 2
Views: 4,825

Last Post By:: Last Post: 04-06-11 05:46 PM; by hbiss

Forum:
Low Voltage and Limited Energy

lighting control system (help what kind is it)

Started by goofball on 01-27-11

Replies: 3
Views: 3,665

Last Post By:: Last Post: 01-30-11 07:27 AM; by dbuckley

Forum:
Lighting

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Equipment separation: 4 kV switch gear near a 208 V UPS question

Small Induction Motor Short Circuit Contribution

Impact of Short Circuit x/r Ratio on Circuit Breaker

Number of Splicing allowed by NEC

Arc-flash hazard calculations in sectionalized switchgear/switchboards

European treadmills on 208v

Combine 2 separate 120V iso-transformers, tie secondaries in series,isolate primaries

CABLE BOX EXPLOSION NEAR METER

Splicing 24 VDC Signal Wiring

Aerial Conduit Between Buildings

51.4 volts on 3-way receptacle

Grounding a metal box used for low-voltage wiring

480VAC transformer used at 380VAC

Reference Licensing

ARC Flash Labeling requirements for Portable machinery, 240/208VAC panels

Voltage on ground of coax

Low Voltage LED signage lighting

VFD driven Motors

TECL required at Refinery, Gas, chemical plants, for low voltage installations.

Chrome Plating Question- Nec 2008

UL rating on Electronic switches.

plastic boxes for low volt in a 18 story commercial building

Motion Sensor Lighting Control for Transformer

Conductors for Class 1 Circuits - Article 725.49(B)

lighting control system (help what kind is it)