MEDIUM VOLTAGE CABLES
MEDIUM VOLTAGE CABLES
This presentation will look at many of the parameters associated with medium voltage cables that are often misunderstood like:
1. The purpose of the semicon on the conductor and the semicon over the insulation.
2. The difference between a metallic shield and a concentric neutral.
3. Why a shield is required for 4160V and higher operation.
4. The various shield types: copper tape, LCS, wires, lead sheath, wires and copper tape, etc.
5. Single point versus multi-point grounding and their effect on ampacity.
6. Overall jacket parameters: moisture resistance, abrasion resistance, flame resistance and specialty jackets like low smoke/zero halogen.
A. Lastly, cable pulling will be reviewed with insights to maximum allowable pulling tension, maximum allowable sidewall pressure limits and the effects of bends on tension. Issues covered will also include:
B. Maximum percent fill of conduits.
C. Cable jamming and jam ratios.
D. The NEC 360 degree bend rule.
E. Minimum bending radius.
THIS PAGE IS FOR REGISTRATION ONLY. -- WEBEX LOG-ON LINK WILL BE EMAILED TO YOU THURS AFTERNOON.
Date and Time
Location
Hosts
Registration
- Date: 16 Apr 2020
- Time: 08:15 PM UTC to 10:45 PM UTC
-
Add Event to Calendar
- Remote Access Meeting:
- WebEx log-in/dial-in info issued by 2pm e-mail on April 16.
- Lehigh Valley, Pennsylvania
- United States
- Building: n/a
- Contact Event Host
-
Gary Smullin, Chair
- Starts 02 April 2020 12:00 AM UTC
- Ends 16 April 2020 04:01 AM UTC
- No Admission Charge
Speakers
JOSEPH S. ZIMNOCH, JR. of THE OKONITE COMPANY
Biography:
Mr. Zimnock is the Director of the Applications Engineering Department of The Okonite Company. He received his bachelor’s degree in Physics from Richard Stockton State College in 1983. He worked in Okonite’s HV lab while attending college and joined Okonite full time as an engineer in the High Voltage Lab in 1984. His responsibilities included testing and qualifying medium and high voltage solid and laminated dielectric cables. In this position, he designed experiments and directed subordinate technical personnel in the accumulation and analysis of test data.
Joe’s current responsibilities include the technical aspects associated with the design, manufacture, installation and application of both solid and laminated insulated conductors ranging from 300 volts to 345 kV. He also participates in the development work associated with new products for NEC applications and for utility company use. He has sat on panel 6 of the National Electrical Code since the 1998 and also participates in NEMA and CSA for Okonite. Joe is a member of IEEE Power & Energy Society and attends all ICC meetings.
Agenda
Thursday, April 16th. Everyone Welcome. Pre-Registration Required. No Fees.
Virtual seating is limited and we anticipate a large attendance. If necessary to cancel, please send a message to above address: "Email event contact". No-shows are unfair to others. Thank you.
WebEx opens by 4pm. The log-in link & dial-in numbers will be e-mailed by 2pm, April 16th, only to those who have pre-registered.
WebEx attendance is free; no account needed.
Join the WebEx early to test & adjust your settings. Presentation will start promptly at 4:30.
15-minute break at 5:30.
WebEx attendees may speak and ask questions; webcam use is your choice.
A toll phone number will be provided should you prefer to dial-in; you must still identify yourself.
Your e-mail address is our only method of communication and will be used for issuing log-in links, dial-in numbers, and any program changes.
Certificate for 2.0 PDH available only upon advance request. IEEE membership is required for a PDH certificate. You must include your active IEEE membership number. Certificates in pdf format will be issued post meeting to those who (1) requested one in advance and (2) attended the entire meeting.