46 CFR § 113.43-5 - Power supply.

---
identifier: "/us/cfr/t46/s113.43-5"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 113.43-5 - Power supply."
title_number: 46
title_name: "Shipping"
section_number: "113.43-5"
section_name: "Power supply."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "J"
subchapter_name: "ELECTRICAL ENGINEERING"
part_number: "113"
part_name: "COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 3306, 3703; DHS Delegation No. 00170.1, Revision No. 01.2."
regulatory_source: "CGD 74-125A, 47 FR 15272, Apr. 8, 1982, unless otherwise noted."
cfr_part: "113"
---


# 113.43-5 Power supply.

Each steering failure alarm system must be supplied by a circuit that:

(a) Is independent of other steering gear system and steering alarm circuits;

(b) Is fed from the final emergency power source through the emergency distribution panel in the wheelhouse, if installed; and

(c) Has no overcurrent protection except short-circuit protection by an instantaneous fuse or circuit breaker rated or set at 400 to 500 percent of:

(1) The current-carrying capacity of the smallest alarm system interconnecting conductors; or

(2) The normal load of the system.