Tender Summary: Supply, Delivery and Installation of GSM Lift Intercom System

Objectives

The primary objective of this tender is to engage a qualified contractor to supply, deliver, and install a GSM-based lift intercom system for Johannesburg Water’s facilities. The initiative seeks to improve passenger safety, guarantee reliable emergency communication within elevator shafts, and transition from legacy landline-dependent systems to modern cellular connectivity that ensures uninterrupted contact with security or maintenance personnel.

Scope of Work

• Supply: Provision of all required hardware, software, cabling, power units, mounting accessories, and ancillary components necessary for a complete GSM lift intercom solution.
• Delivery: Secure transportation of all equipment to designated Johannesburg Water sites, including appropriate handling, storage, and inventory management prior to installation.
• Installation & Commissioning: Physical mounting, low-voltage wiring, system configuration, network activation, and comprehensive testing to verify call routing, audio clarity, and fail-safe operations. Includes interfacing with existing lift control panels and monitoring stations.
• Handover & Support: Submission of as-built drawings, user manuals, warranty documentation, and basic operator training. Compliance with agreed maintenance and warranty periods as stipulated in the full tender package.

Technical Requirements

Based on the tender notice and industry standards for this type of procurement, bidders must satisfy the following technical criteria:

• Full compatibility with South African GSM networks, including multi-band support to guarantee signal penetration in concrete or underground lift shafts.
• Integrated battery backup or uninterruptible power supply (UPS) to maintain emergency communication during grid failures.
• Compliance with SANS electrical and telecommunications standards, along with lift safety regulations governing emergency communication devices.
• Equipment must carry a minimum manufacturer warranty covering defects, parts replacement, and technical support.
• Contractors must hold a CIDB grading of 1SI or higher, confirming eligibility to execute specialized installation projects within the required financial and technical parameters.

Skills & Qualification Requirements

• Valid CIDB registration at 1SI grade or above.
• Demonstrated experience in installing lift intercom, access control, or telecommunications systems in municipal or commercial environments.
• Employment of certified electricians and technicians proficient in low-voltage cabling, GSM module provisioning, and lift control system integration.
• Project management capability to coordinate site logistics, schedule installations with minimal service disruption, and enforce quality control procedures.
• Strict adherence to Occupational Health and Safety legislation, including documented risk assessments, method statements, and safe working practices for confined spaces and elevated work.

Clarification of Key Terms

GSM Lift Intercom System: A cellular-network-based communication device installed inside elevator cabins. Unlike traditional hardwired intercoms that depend on fixed telephone lines, GSM systems route calls through mobile networks, ensuring reliable emergency contact even when landline infrastructure is compromised or unavailable. They typically feature one-touch calling, auto-answer functionality, and direct linking to security control rooms or designated mobile devices.

CIDB 1SI Grading: The Construction Industry Development Board (CIDB) classifies contractors by service category and financial capacity. Grade 1SI designates a specialist installer with a defined monetary threshold, indicating the contractor has the legal standing, technical expertise, and financial stability to execute focused installation projects safely and efficiently. A requirement of 1SI or higher ensures the bidder meets minimum competency standards for this scope of work.