Elevators and escalators on a Texas paper, and the trade the licensing act leaves alone

What the exam asks about elevators

Elevators are a small topic with a reliable presence. Across our 500 question bank, five questions involve one. Three sit squarely on Article 620 in the installation area, and two reach elevators through the multifamily load calculation, where an elevator counts as a house load.

What makes the hour worth spending is that the three Article 620 questions are all answerable from one idea, and the idea generalizes. Everything the article asks for in a hoistway, a machine room or a pit exists so that a person working inside a moving machine keeps the light on, keeps somewhere to plug a tool in, and knows that whatever killed the drive stays dead. Read the article holding that thought and the distractors stop looking plausible.

There is a second reason. Elevators and escalators appear by name in the list of work the Texas licensing act leaves alone, which makes this the rare topic where the code question and the licensing question have different answers.

The licensing question comes first

Section 1305.003 of the Texas Occupations Code sets out the work Chapter 1305 declines to reach. Subsection (a) holds twenty-three numbered items and elevators and escalators are one of them. Those twenty-three are specific descriptions written narrowly on purpose, and a job either fits one of them or it sits inside the act.

Two things follow for anybody working around this equipment in Texas. The exemption describes the elevator and escalator work itself. And subsection (b) states that the chapter applies to all premises wiring originating where an electric utility's facilities end and a nonutility customer's facilities begin, with one carve-out drawn from section 161.123(2)(A) of the Utilities Code. The feeder arriving at the machine room is premises wiring in a building.

So the exemption sits beside your work. The sensible move for a licensee is to read the actual subdivision before deciding which side of the line a particular task falls on, and the same goes for the other twenty-two items, which are equally narrow. For the exam the point is simpler: the code article and the licensing act are separate instruments with separate scopes, and the paper is written against the code.

The disconnecting means, and the second one

Article 620 asks for one means of disconnecting all ungrounded main power conductors for each unit, arranged so that no pole operates independently, capable of being locked in the open position, and located in sight of the controller.

Take the four conditions separately, because each one is a distractor somewhere.

• Each unit. One car gets one means, so a single handle covering a bank of cars falls short of it.
• No pole operating independently. Three single pole devices with three separate handles fail this.
• Capable of being locked open. Section 110.25 sets the terms for a lockable disconnecting means: the provision for locking is installed on or at the switch or breaker and stays there whether or not a lock is fitted, because the next person to work on that equipment has no way of knowing that somebody's portable attachment exists.
• In sight of the controller. In sight from is an Article 100 definition with two halves: the equipment is visible from the other equipment and it is within 50 feet. A clear line of sight from 60 feet away fails the distance half, which is the same trap the motor article sets on its disconnect questions.

Two wrong options are worth naming. A disconnect in the lobby so the public can reach it puts a hazard in untrained hands, and the means belongs where qualified people work. A disconnect at every landing the car serves is invented, and it sounds thorough.

The car lights get their own

Car lighting, car receptacles and car ventilation take a separate disconnecting means from the one that kills the drive.

The reason is the whole article in miniature. A mechanic standing on top of a car or working down in the pit has opened the main disconnect and locked it open. If that same handle also took out the car lights and the car receptacle, the mechanic would be inside a shaft in the dark with no power for a tool. The option offering one disconnect for everything is offering to remove the light somebody is working by.

The same reasoning puts a motor disconnect in sight of the work, and it is behind the separate branch circuit for machine room lighting further down this page.

Nothing foreign in the hoistway

A hoistway is a convenient vertical chase running the height of a building, and Article 620 closes it. The article permits wiring used with the elevator in hoistways, machine rooms and control spaces, and the allowances it makes are narrow, covering such things as the feeders for the elevator itself and the lighting and receptacles the article requires in those spaces.

A corridor lighting circuit routed through the hoistway to save a chase is the exact case the rule is written about, and the bank question offers three ways to argue for it. Running it in metal raceway reads a wiring method as an exemption from a scope rule. Separating it from the traveling cables answers a different question. Getting the elevator contractor to agree makes a code rule negotiable between trades.

The reasoning behind the rule explains why none of the three work. A hoistway holds a moving machine, so a cable that belongs to something else is an entanglement risk, and it is also a fire in a space that runs from the pit to the roof.

A light, a switch and a receptacle

Article 620 sets lighting and receptacles for the machine room, the machinery space and the pit, and the details are where the third question comes from.

• The light switch goes where a person can reach it on entering, so that nobody has to cross a dark room past the machine to find it.
• A receptacle is required, and the pit receptacle carries ground fault protection, because a pit is a confined space that collects water and a person works down there with tools.
• Machine room lighting and receptacles sit on a separate branch circuit, so that work on the elevator supply leaves the space lit.

The distractors track the three things candidates substitute. Emergency lighting from the fire alarm system names a different system when the article is asking for ordinary required lighting. A lighting outlet fed from the car lighting circuit takes power from the circuit that goes away the moment the car is worked on. A receptacle on its own, with portable lighting brought in, leaves a space with no fixed lighting at all.

Where an elevator enters a load calculation

The other two elevator questions in the bank arrive from a different direction. In a multifamily building worked by the optional method, the demand factors were built from the diversity among dwelling units, so they apply to the sum of those unit loads and stop there. House loads such as corridor lighting, laundry rooms and elevators are calculated separately under the standard rules and added after the demand factor has been applied.

Folding an elevator into the unit sum hands it a reduction derived from the behavior of apartments, which understates the service. Corridor lighting makes the point, since it is a continuous load that runs when the units are quietest.

The arithmetic built on this is a two step. Apply the demand factor to the summed unit loads, then convert using the line to line voltage. Unit loads of 300,000 volt-amperes with a 38 percent demand factor give 114,000 volt-amperes, and dividing by 240 volts gives 475 amperes. That figure covers the dwelling units alone, with the house loads including the elevator still to be added. The load calculation area covers the rest of the sequence, and the question sets is where the worked arithmetic lives, with every answer shown alongside its working in its free question set.

What these cost on the job

Three of these turn up as rework long before they turn up on a paper.

A circuit routed through a hoistway is cheap to install and expensive to remove, because taking it out means access to a shaft that is now in service and time from a lift company that bills for it.

A missing pit receptacle or a missing switch at the machine room entry is a small item that can hold a certificate of occupancy on a building where every other trade has packed up.

A machine room whose lighting shares the elevator supply is a design decision that stays invisible until the first service call, when the mechanic opens the disconnect and the room goes dark. Correcting it means pulling a new circuit into a finished building, and somebody pays for that out of a warranty line.

What a Texas city can add

Local amendments reach this equipment the same way they reach everything else. Texas cities may adopt procedures for local amendments to the National Electrical Code and for administering and enforcing it under Tex. Occ. Code 1305.201(c), and 1305.201(d) requires electrical work inside the corporate limits to be installed in accordance with all applicable local ordinances. So the governing text in any city is the state adopted edition plus that city's amendments, and the question to ask before pricing work somewhere unfamiliar is which edition and which amendments.

Two things a city may no longer do are worth carrying. It may not require you to sit a municipal examination while you hold the appropriate state license and work inside its scope, under 1305.201(b). It may not collect a permit, registration or administrative fee from a licensed electrician for work in the municipality under 1305.201(f), although a building permit fee for the work itself remains available to it. The local rules page sets out where both of those bars come from, along with a third added in 2025.

What to do before test day

An hour covers this topic. Spend it like this.

1. Read the disconnecting means part of Article 620 end to end, and mark the separate means for car lighting, receptacles and ventilation.
2. Read the part covering wiring in hoistways, machine rooms and control spaces, and note how narrow the allowances are.
3. Read the lighting and receptacle requirements for the machine room, the machinery space and the pit in one pass.
4. Look up in sight from in Article 100 and write 50 feet beside it, because that definition answers questions in several different articles.
5. Read Tex. Occ. Code 1305.003(a) once, so you know which trades the act leaves alone.

Then work questions against a clock. The thirty free questions here cover the installation area these items sit in, and they name the section behind every miss. One warning about stems: if a question puts a motor in a machine room and asks about conductor ampacity or an overload setting, you have left Article 620 and you are back in the motor calculation sequence, where the table current and the nameplate current govern different steps.

Questions people ask

Do I need a Texas electrician license to work on an elevator?

Elevators and escalators are one of the twenty-three items in Tex. Occ. Code 1305.003(a), the list of work the electrician licensing act declines to reach. Those twenty-three are narrow descriptions written on purpose, so a job either fits one or it sits inside the act. The premises wiring feeding the machine room is a separate matter, because subsection (b) applies the chapter to all premises wiring originating where the utility's facilities end and the customer's begin. Read the subdivision itself before deciding which side a given task falls on.

How many disconnecting means does an elevator need?

At least two kinds. Article 620 asks for one means of disconnecting all ungrounded main power conductors for each unit, with no pole operating independently, capable of being locked in the open position, and located in sight of the controller. Car lighting, car receptacles and ventilation then take their own disconnecting means. The split exists so that a mechanic on top of the car or down in the pit can kill the drive and keep the light and the tool receptacle alive, which is the reasoning behind most of what the article requires.

Can I run another circuit through an elevator hoistway?

Only wiring used with the elevator belongs there. Article 620 keeps foreign wiring out of hoistways, machine rooms and control spaces, and the allowances it makes are narrow, covering such things as the feeders for the elevator and the lighting and receptacles the article requires in those spaces. Running the circuit in metal raceway does not change the answer, because that is a wiring method and this is a scope rule. Separating it from the traveling cables leaves it equally unpermitted, and agreement between contractors has no bearing on it.

What does Article 620 require in the pit?

Lighting and a receptacle, with the pit receptacle carrying ground fault protection. A pit is a confined space that collects water and a person works down there with tools, which is the reasoning behind the protection. The article also puts the light switch where somebody can reach it on entering, so nobody crosses a dark space past the machine to find it. Machine room lighting and receptacles go on a separate branch circuit, so opening the elevator supply for service leaves the room lit and leaves the tool receptacle live.

How does an elevator enter a multifamily load calculation?

As a house load, calculated separately and added after the demand factor. The demand factors in the multifamily optional method were derived from the diversity among dwelling units, so they apply to the sum of those unit loads. Corridor lighting, laundry rooms and elevators are worked under the standard rules and added on top. Folding them into the unit sum gives them a reduction that was never derived for them and understates the service, and corridor lighting shows why, since it is a continuous load running when the apartments are quietest.

Is there a question set on this topic?

Not yet. The free question sets on this site cover fifty-five topics on the arithmetic side of the exam, and elevators are among the topics they have yet to reach, so this page is sourced from our own question bank and from the Texas licensing material. The question sets are where the worked arithmetic for load calculations of this shape lives, and the thirty free questions on the practice exam are timed and cover the installation area the Article 620 items sit in. Between them you can work the topic from both ends.