GUIDE FOR THE CONNECTION OF SURGE ARRESTERS TO PROTECT INSULATED, SHIELDED ELECTRIC POWER CABLE SYSTEMS
Institute of Electrical & Electronics Engineers
1 Overview
1.1 Scope
1.2 Purpose
2 Cable damage
3 Lightning over voltage and cable system effects
3.1 Lightning surges on the overhead distribution
system
4 Surge arrester operation
4.1 Surge arrester operation
4.2 Lead length
5 Cable system surge arrester protection schemes
5.1 Terminal pole arrester scheme
5.2 Terminal pole and open point arrester scheme
5.3 Terminal pole, mid-point and open point
arrester scheme
6 Lightning data
6.1 Multiple current impulses
6.2 Surge current magnitude
6.3 Rise time
6.4 Bi-polar surges
7 Total impressed transient voltage
7.1 Total impressed transient voltage
7.2 Arrester discharge voltage
7.3 Connection lead length voltage drop
7.4 Sum of impressed transient voltage components
7.5 Lead inductance
7.6 Lead voltage build drop
8 Open-point protection
8.1 No open-point arrester
8.2 With open-point protection
9 Margins of protection
9.1 Arrester at terminal pole only
9.2 Arresters at terminal pole and open point
9.3 Arresters at terminal pole, mid-span and open point
9.4 Historical minimum margin of protection
10 Terminal pole installation techniques
10.1 Unjacketed concentric neutral cable using
neutral wires or cable with semi-conducting jacket
as pole ground with tap connection off riser
10.2 Jacketed cable with separate pole ground with tap
connection off riser
10.3 Equivalent electrical circuit for arrester
installation
10.4 Jacketed cable with separate pole ground with
riser run through arrester
10.5 Reduced ground lead length
10.6 Use of coiled line lead discouraged
11 Recommendations
ANNEX
Annex A (informative) Margin of protection calculation
examples
Annex B (informative) Bibliography
Provides suggestion for surge arrester installation methods at distribution cable terminal poles in order to minimize the total impressed transient voltage on medium-voltage distribution cables.
| Document Type | Standard |
| Status | Current |
| Publisher | Institute of Electrical & Electronics Engineers |
| Supersedes |
|
